Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
PrimeX 41, PrimeX 22, Prime 41*, and Prime 17W* camera models have powerful tracking capability that allows tracking outdoors. With strong infrared (IR) LED illuminations and some adjustments to its settings, a Prime system can overcome sunlight interference and perform 3D capture. This page provides general hardware and software system setup recommendations for outdoor captures.
Please note that when capturing outdoors, the cameras will have shorter tracking ranges compared to when tracking indoors. Also, the system calibration will be more susceptible to change in outdoor applications because there are environmental variables (e.g. sunlight, wind, etc.) that could alter the system setup. To ensure tracking accuracy, routinely re-calibrate the cameras throughout the capture session.
Even though it is possible to capture under the influence of the sun, it is best to pick cloudy days for captures in order to obtain the best tracking results. The reasons include the following:
Bright illumination from the daylight will introduce extraneous reconstructions, requiring additional effort in the post-processing on cleaning up the captured data.
Throughout the day, the position of the sun will continuously change as will the reflections and shadows of the nearby objects. For this reason, the camera system needs to be routinely re-masked or re-calibrated.
The surroundings can also work to your advantage or disadvantage depending on the situation. Different outdoor objects reflect 850 nm Infrared (IR) light in different ways that can be unpredictable without testing. Lining your background with objects that are black in Infrared (IR) will help distinguish your markers from the background better which will help with tracking. Some examples of outdoor objects and their relative brightness is as follows:
Grass typically appears as bright white in IR.
Asphalt typically appears dark black in IR.
Concrete depends, but it's usually a gray in IR.
1. [Camera Setup] Camera mount setup
In general, setting up a truss system for mounting the cameras is recommended for stability, but for outdoor captures, it could be too much effort to do so. For this reason, most outdoor capture applications use tripods for mounting the cameras.
2. [Camera Setup] Camera aim
Do not aim the cameras directly towards the sun. If possible, place and aim the cameras so that they are capturing the target volume at a downward angle from above.
3. [Camera Setup] Lens f-stop
Increase the f-stop setting in the Prime cameras to decrease the aperture size of the lenses. The f-stop setting determines the amount of light that is let through the lenses, and increasing the f-stop value will decrease the overall brightness of the captured image allowing the system to better accommodate for sunlight interference. Furthermore, changing this allows camera exposures to be set to a higher value, which will be discussed in the later section. Note that f-stop can be adjusted only in PrimeX 41, PrimeX 22, Prime 41*, and Prime 17W* camera models.
4. [Camera Setup] Utilize shadows
Even though it is possible to capture under sunlight, the best tracking result is achieved when the capture environment is best optimized for tracking. Whenever applicable, utilize shaded areas in order to minimize the interference by sunlight.
1. [Camera Settings] Max IR LED Strength
Increase the LED setting on the camera system to its maximum so that IR LED illuminates at its maximum strength. Strong IR illumination will allow the cameras to better differentiate the emitted IR reflections from ambient sunlight.
2. [Camera Settings] Camera Exposure
In general, increasing camera exposure makes the overall image brighter, but it also allows the IR LEDs to light up and remain at its maximum brightness for a longer period of time on each frame. This way, the IR illumination is stronger on the cameras, and the imager can more easily detect the marker reflections in the IR spectrum.
When used in combination with the increased f-stop on the lens, this adjustment will give a better distinction of IR reflections. Note that this setup applies only for outdoor applications, for indoor applications, the exposure setting is generally used to control overall brightness of the image.
*Legacy camera models
\
With an optimized system setup, motion capture systems are capable of obtaining extremely accurate tracking data from a small to medium sized capture volume. This quick start guide includes general tips and suggestions on precision capture system setups and important cautions to keep in mind. This page also covers some of the precision verification methods in Motive. For more general instructions, please refer to the Quick Start Guide: Getting Started or corresponding workflow pages.
Before going into details on precision tracking with an OptiTrack system, let's start with a brief explanation of the residual value, which is the key reconstruction output for monitoring the system precision. The residual value is an average offset distance, in mm, between the converging rays when reconstructing a marker; hence indicating preciseness of the reconstruction. A smaller residual value means that the tracked rays converge more precisely and achieve more accurate 3D reconstruction. A well-tracked marker will have a sub-millimeter average residual value. In Motive, the tolerable residual distance is defined from the Reconstruction Settings under the Application Settings panel.
When one or more markers are selected in the Live mode or from the 2D Mode of capture data, the corresponding mean residual value is displayed over the Status Panel located at the bottom-right corner of Motive.
First of all, optimize the capture volume for the most precise and accurate tracking results. Avoid a populated area when setting up the system and recording a capture. Clear any obstacles or trip hazards around the capture volume. Physical impacts on the setup will distort the calibration quality, and it could be critical especially when tracking at a sub-millimeter accuracy. Lastly, for best results, routinely recalibrate the capture volume.
Motion capture cameras detect reflected infrared light. Thus, having other reflective objects in the volume will alter the results negatively, which could be critical especially for precise tracking applications. If possible, have background objects that are IR black and non-reflective. Capturing in a dark background provides clear contrast between bright and dark pixels, which could be less distinguishable in a white background.
Optimized camera placement techniques will greatly improve the tracking result and the measurement accuracy. The following guide highlights important setup instructions for the small volume tracking. For more details on general system setup, read through the Hardware Setup pages.
Mounting Locations
For precise tracking, better results will be obtained by placing cameras closer to the target object (adjusting focus will be required) in a sphere or dome-shaped camera arrangement, as shown in the images on the right. Good positional data in all dimensions (X, Y, and Z axis) will be attained only if there are cameras contributing to the calculation from a variety of different locations; each unique vantage adds additional data.
Mount Securely
For most accurate results, cameras should be perfectly stationary, securely fastened onto a truss system or an extremely rigid object. Any slight deformation or fluctuation to the mount structures may affect the result in sub-millimeter tracking applications. A small-sized truss system is ideal for the setup. Take extreme caution when mounting onto speed rails attached to a wall, because the building may fluctuate on hot days.
Increase the f-stop higher (smaller aperture) to gain a larger depth of field. Increased depth of field will make the greater portion of the capture volume in-focus and will make measurements more consistent throughout the volume.
Especially for close-up captures, camera aim and focus should be adjusted precisely. Aim the cameras towards the center of the capture volume. Optimize the camera focus by zooming into a marker in Motive, and rotating the focus knob on the camera until the smallest marker is captured with clearest image contrast. To zoom in and out from the camera view, place the mouse cursor over the 2D camera preview window in Motive and use the mouse-scroll.
For more information, please read through the Aiming and Focusing workflow page.
The following sections cover key configuration settings which need to be optimized for the precision tracking.
Camera settings are configured using the Devices pane and the Properties pane both of which can be opened under the view tab in Motive.
Live-reconstruction settings can be configured under the application settings panel. These settings determine which data gets reconstructed into the 3D data, and when needed, you can adjust the filter thresholds to prevent any inaccurate data from reconstructing. Read through the Application Settings page for more details on each setting. For the precision tracking applications, the key settings and the suggested values are listed below:
The following calibration instructions are specific to precision tracking. For more general information, refer to the Calibration page.
For calibrating small capture volumes for precision tracking, we recommend using a Micron Series wand, either the CWM-250 or CWM-125. These wands are made of invar alloy, very rigid and insensitive to temperature, and they are designed to provide a precise and constant reference dimension during calibration. At the bottom of the wand head, there is a label which shows a factory-calibrated wand length with a sub-millimeter accuracy. In the Calibration pane, select Micron Series under the OptiWand dropdown menu, and define the exact length under the Wand Length.
The CW-500 wand is designed for capturing medium to large volumes, and it is not suited for calibrating small volumes. Not only it does not have the indication on the factory-calibrated length, but it is also made of aluminum, which makes it more vulnerable to thermal expansions. During the wanding process, Motive references the wand length for calibrating the capture volume, and any distortions in the wand length would cause the calibrated capture volume to be scaled slightly differently, which can be significant when capturing precise measurements. For this reason, a micron series wand is suitable for precision tracking applications.
Note: Never touch the marker on the CWM-250 or CWM-125 since any changes can affect the calibration and overall data.
Precision Capture Calibration Tips
Wand slowly. Waving the wand around quickly at high exposure settings will blur the markers and distort the centroid calculations, at last, reducing the quality of your calibration.
Avoid occluding any of the calibration markers while wanding. Occluding markers will reduce the quality of the calibration.
A variety of unique samples is needed to achieve a good calibration. Wand in a three-dimensional volume, wave the wand in a variety of orientations and throughout the volume.
Extra wanding in the target area you wish to capture will improve the tracking in the target region.
Wanding the edges of the volume helps improve the lens distortion calculations. This may cause Motive to report a slightly worse overall calibration report, but will provide better quality calibration; explained below.
Starting/stopping the calibration process with the wand in the volume may help avoid getting rough samples outside your volume when entering and leaving.
Calibration reports and analyzing the reported error is a complicated subject because the calibration process uses its own samples for validation. For example, sampling near the edge of the volume may improve the accuracy of the system but provide slightly worse calibration results. This is because the samples near the edge will have more errors to be corrected. Acceptable mean error varies based on the size of your volume, the number of cameras, and desired accuracy. The key metrics to keep an eye on are the Mean 3D Error for the Overall Reprojection and the Wand Error. Generally, use calibrations with the Mean 3D Error less than 0.80 mm and the Wand Error less than 0.030 mm. These numbers may be hard to reproduce in regular volumes. Again, the acceptable numbers are subjective, but lower numbers are better in general.
In general, passive retro-reflective markers will provide better tracking accuracy. The boundary of the spherical marker can be more clearly distinguished on passive markers, and the system can identify an accurate position of the marker centroids. The active markers, on the other hand, emit light and the illumination may not appear as spherical on the camera view. Even if a spherical diffuser is used, there can be situations where the light is not evenly distributed. This could provide inaccurate centroid data. For this reason, passive markers are preferred for precision tracking applications.
For close-up capture, it could be inevitable to place markers close to one another, and when markers are placed in close vicinity, their reflections may be merged as seen by the camera’s imager. Merged reflections will have an inaccurate centroid location, or they may even be completely discarded by the circularity filter or the intrusion detection feature. For best results, keep the circularity filter at a higher setting (>0.6) and decrease the intrusion band in the camera group 2D filter settings to make sure only relevant reflections are reconstructed. The optimal balance will depend on the number and arrangement of the cameras in the setup.
There are editing methods to discard or modify the missing data. However, for most reliable results, such marker intrusions should be prevented before the capture by separating the marker placements or by optimizing the camera placements.
Once a Rigid Body is defined from a set of reconstructed points, utilize the Rigid Body Refinement feature to further refine the Rigid Body definition for precision tracking. The tool allows Motive to collect additional samples in the live mode for achieving more accurate tracking results.
In a mocap system, camera mount structures and other hardware components may be affected by temperature fluctuations. Refer to linear thermal expansion coefficient tables to examine which materials are susceptible to temperature changes. Avoid using a temperature sensitive material for mounting the cameras. For example, aluminum has relatively high thermal expansion coefficient, and therefore, mounting cameras onto aluminum mounting structures may distort the calibration quality. For best accuracy, routinely recalibrate the capture volume, and take the temperature fluctuation into an account both when selecting the mount structures and before collecting data.
An ideal method of avoiding influence from environmental temperature is to install the system in a temperature controlled volume. If such option is unavailable, routinely calibrate the volume before capture, and recalibrate the volume in between sessions when capturing for a long period. The effects are especially noticeable on hot days and will significantly affect your results. Thus, consistently monitor the average residual value and how well your rays converge to individual markers.
The cameras will heat up with extended use, and change in internal hardware temperature may also affect the capture data. For this reason, avoid capturing or calibrating right after powering the system. Tests have found that the cameras need to be warmed up in Live mode for about an hour until it reaches a stable temperature. Typical stable temperatures are between 40-50 degrees Celsius or 25 degree Celsius above the ambient temperature. For Ethernet camera models, camera temperatures can be monitored from the Cameras View in Motive (Cameras View > Eye Icon > Camera Info).
If a camera exceeds 80 degrees Celsius, this can be a cause for concern. It can cause frame drops and potential harm to the camera. If possible, keep the ambient temperature as low, dry, and consistent as possible.
Especially for measuring at sub-millimeters, even a minimal shift of the setup can affect the recordings. Re-calibrate the capture volume if your average residual values start to deviate. In particular, watch out for the following:
Avoid touching the cameras and the camera mounts.
Keep the capture area away from heavy foot traffic. People shouldn't be walking around the volume while the capture is taking place.
Closing doors, even from the outside, may be noticeable during recording.
The following methods can be used to check the tracking accuracy and to better optimize the reconstructions settings in Motive.
The calibration quality can also be analyzed by checking the convergence of the tracked rays into a marker. This is not as precise as the first method, but the tracked rays can be used to check the calibration quality of multiple cameras at once. First of all, make sure tracked rays are visible; Perspective View pane > Eye button > Tracked Rays. Then, select a marker in the perspective view pane. Zoom all the way into the marker (you may need to zoom into the sphere), and you will be able to see the tracking rays (green) converging into the center of the marker. A good calibration should have all the rays converging into approximately one point, as shown in the following image. Essentially, this is a visual way of examining the average residual offset of the converging rays.
In Motive 3.0, a new feature was introduced called Continuous Calibration. This can aid in keeping your precision for longer in between calibrations. For more information regarding continuous calibration please refer to our Wiki page Continuous Calibration.
Welcome to the Quick Start Guide: Getting Started!
This guide provides a quick walk-through of installing and using OptiTrack motion capture systems. Key concepts and instructions are summarized in each section of this page to help you get familiarized with the system and get you started with the capture experience.
Note that Motive offers features far beyond the ones listed in this guide, and the capability of the system can be further optimized to fit your specific capture applications using the additional features. For more detailed information on each workflow, read through the corresponding workflow pages in this wiki: hardware setup and software setup.
For best tracking results, you need to prepare and clean up the capture environment before setting up the system. First, remove unnecessary objects that could block the camera views. Cover open windows and minimize incoming sunlight. Avoid setting up a system over reflective flooring since IR lights from cameras may get reflected and add noise to the data. If this is not an option, use rubber mats to cover the reflective area. Likewise, items with reflective surfaces or illuminating features should be removed or covered with non-reflective materials in order to avoid extraneous reflections.
Key Checkpoints for a Good Capture Area
Minimize ambient lights, especially sunlight and other infrared light sources.
Clean capture volume. Remove unnecessary obstacles within the area.
Tape, or Cover, remaining reflective objects in the area.
See Also: Hardware Setup workflow pages.
Ethernet Camera Models: PrimeX series and SlimX 13 cameras. Follow the below wiring diagram and connect each of the required system components.
Connect PoE Switch(s) into the Host PC: Start by connecting a PoE switch into the host PC via an Ethernet cable. Since the camera system takes up a large amount of data bandwidth, the Ethernet camera network traffic must be separated from the office/local area network. If the computer used for capture is connected to an existing network, you will need to use a second Ethernet port or add-on network card for connecting the computer to the camera network. When you do, make sure to turn off your computer's firewall for the particular network under Windows Firewall settings.
Connect the Ethernet Cameras to the PoE Switch(s): Ethernet cameras connect to the host PC via PoE/PoE+ switches using Cat 6, or above, Ethernet cables.
Power the Switches: The switch must be powered in order to power the cameras. To completely shut down the camera system, the network switch needs to be powered off.
Ethernet Cables: Ethernet cable connection is subject to the limitations of the PoE (Power over Ethernet) and Ethernet communications standards, meaning that the distance between camera and switch can go up to about 100 meters when using Cat 6 cables (Ethernet cable type Cat5e or below is not supported). For best performance, do not connect devices other than the computer to the camera network. Add-on network cards should be installed if additional Ethernet ports are required.
Ethernet Cable Requirements
Cable Type
There are multiple categories for Ethernet cables, and each has different specifications for maximum data transmission rate and cable length. For an Ethernet based system, category 6 or above Gigabit Ethernet cables should be used. 10 Gigabit Ethernet cables – Cat6a or above— are recommended in conjunction with a 10 Gigabit uplink switch for the connection between the uplink switch and the host PC in order to accommodate for the high data traffic.
Electromagnetic Shielding
Also, please use a cable that has electromagnetic interference shielding on it. If cables without the shielding are used, cables that are close to each other could interfere and cause the camera to stall in Motive.
External Sync: If you wish to connect external devices, use the eSync synchronization hub. Connect the eSync into one of the PoE switches using an Ethernet cable, or if you have a multi-switch setup, plug the eSync into the aggregation switch.
Uplink Switch: For systems with higher camera counts that uses multiple PoE switches, use an uplink Ethernet switch to link and connect all of the switches to the Host PC. In the end, the switches must be connected in a star topology with the uplink switch at the central node connecting to the host PC. NEVER daisy chain multiple PoE switches in series because doing so can introduce latency to the system.
High Camera Counts: For setting up more than 24 Prime series cameras, we recommend using a 10 Gigabit uplink switch and connecting it to the host PC via an Ethernet cable that supports 10 Gigabit transfer rate — Cat6a or above. This will provide larger data bandwidth and reduce the data transfer latency.
PoE switch requirement: The PoE switches must be able to provide 15.4W power to every port simultaneously. PrimeX 41, PrimeX 22, and Prime Color camera models run on a high power mode to achieve longer tracking ranges, and they require 30W of power from each port. If you wish to operate these cameras at standard PoE mode, set the LLDP (PoE+) Detection setting to false under the application settings. For network switches provided by OptiTrack, refer to the label for the number of cameras supported for each switch.
See Also: Network setup page.
Optical motion capture systems utilize multiple 2D images from each camera to compute, or reconstruct, corresponding 3D coordinates. For best tracking results, cameras must be placed so that each of them captures unique vantage of the target capture area. Place the cameras circumnavigating around the capture volume, as shown in the example below, so that markers in the volume will be visible by at least two cameras at all times. Mount cameras securely onto stable structures (e.g. truss system) so that they don't move throughout the capture. When using tripods or camera stands, ensure that they are placed in stable positions. After placing cameras, aim the cameras so that their views overlap around the region where most of the capture will take place. Any significant camera movement after system calibration may require re-calibration. Cable strain-relief should be used at the camera end of camera cables to prevent potential damage to the camera.
See Also: Camera Placement and Camera Mount Structures pages.
In order to obtain accurate and stable tracking data, it is very important that all of the cameras are correctly focused to the target volume. This is especially important for close-up and long-range captures. For common tracking applications in general, focus-to-infinity should work fine, however, it is still important to confirm that each camera in the system is focused.
To adjust or to check camera focus, place some markers on the target tracking area. Then, set the camera to raw grayscale mode, increase the exposure and LED settings, and then Zoom onto one of the retroreflective markers in the capture volume and check the clarity of the image. If the image is blurry, adjust the camera focus and find the point where the marker is best resolved.
See Also: Aiming and Focusing page.
In order to properly run a motion capture system using Motive, the host PC must satisfy the minimum system requirements. Required minimum specifications vary depending on sizes of mocap systems and types of cameras used. Consult our Sale Engineers, or use the Build Your Own feature on our website to find out host PC specification requirements.
Motive is a software platform designed to control motion capture systems for various tracking applications. Motive not only allows the user to calibrate and configure the system, but it also provides interfaces for both capturing and processing of 3D data. The captured data can be recorded or live-streamed into other pipelines.
If you are new to Motive, we recommend you to read through Motive Basics page after going through this guide to learn about basic navigation controls in Motive.
Motive Activation Requirements
The following items will be required for activating Motive. Please note that the valid duration of the Motive license must be later than the release date of the version that you are activating. If the license is expired, please update the license or use an older version of Motive that was released prior to the license expiration date.
Motive 3.x license
USB Security Key
Host PC Requirements
Required PC specifications may vary depending on the size of the camera system. Generally, you will be required to use the recommended specs with a system with more than 24 cameras.
Download and Install
To install Motive, simply download the Motive software installer for your operating system from the Motive Download Page, then run the installer and follow its prompts.
Note: Anti-virus software can interfere with Motive's ability to communicate with cameras or other devices, and it may need to be disabled or configured to allow the device communication to properly run the system.
License Activation Steps
Insert the USB Security Key into a USB-C port on the computer. If needed, you can also use a USB-A adapter to connect.
Launch Motive
Activate your software using the License Tool, which can be accessed in the Motive splash screen. You will need to input the License Serial Number and the Hash Code for your license.
After activation, the License tool will place the license file associated to the USB Security Key in the License folder. For more license activation questions, visit Licensing FAQs or contact our Support.
Notes on using USB Security Key
When connecting the USB Security Key into the computer, please avoid sharing the USB card with other USB devices that may transmit a large amount of data frequently. For example, if you have external devices (e.g. Force Plates, NI-DAQ) that communicates via USB, connect those devices onto a separate USB card so that they don't interfere with the Security Key.
USB Hardware Key from older version of Motive have been replaced by USB Security Key in Motive 3.x version or above.
Notes on First Connection with a USB Security Key
The Security Key must register with the connected cameras upon initial activation, or when one or more cameras are added to an existing system. This process requires that the host PC be connected to the internet and may take a few minutes. Once the cameras have been registered, an internet connection is no longer required.
By default, Motive will start on the calibration layout with all the necessary panes open. Using this layout, you can calibrate the camera system and construct a 3D tracking volume. The layout may be slightly different for certain camera models or software licenses.
The following panes will be open:
See Also: List of UI pages from the Motive section of the wiki.
Use the following controls for navigating throughout the 2D and 3D viewports in Motive. Most of the navigation controls are customizable, including both mouse actions and hotkeys. These mouse and keyboard controls can be customized through the Application Settings panel.
Now that the cameras are connected and showing up in Motive, the next step is to configure the camera settings. Appropriate camera settings will vary depending on various factors including the capture environment and tracked objects. The overall goal is to configure the settings so that the marker reflections are clearly captured and distinguished in the 2D view of each camera. For a detailed explanation on individual settings, please refer to the Devices pane page.
To check whether the camera setting is optimized, it is best to check both the grayscale mode images and tracking mode (Object or Precision) images and make sure the marker reflection stands out from the image. You switch a camera into grayscale mode either in Motive or by using the Aim Assist button for supported cameras. In Motive, you can right-click on the Cameras Viewport and switch the video mode in the context menu, or you can also change the video mode through the Properties pane.
Exposure Setting
The exposure setting determines how long the camera imagers are exposed per each frame of data. With longer the exposure, more light will be captured by the camera, creating the brighter images that can improve visibility for small and dim markers. However, high exposure values can introduce false markers, larger marker blooms, and marker blurring – all of which can negatively impact marker data quality. It is best to minimize the exposure setting as long as the markers are clearly visible in the captured images.
Tip: For the calibration process, click the Layout → Calibrate menu (CTRL + 1) to access the calibration layout.
In order to start tracking, all cameras must first be calibrated. Through the camera calibration process, Motive computes position and orientation of cameras (extrinsic) as well as amounts of lens distortions in captured images (intrinsics). Using the calibration results, Motive constructs a 3D capture volume, and within this volume, motion tracking is accomplished. All of the calibration tools can be found under the Calibration pane. Read through the Calibration page to learn about the calibration process and what other tools are available for more efficient workflows.
See Also: Calibration page.
Duo/Trio Tracking Bars: The camera calibration is not needed for Duo/Trio Tracking bars. The cameras are pre-calibrated using the fixed camera placements. This allows the tracking bars to work right out of the box without the calibration process. To adjust the ground plane, used the Coordinate System Tools in Motive.
Starting a Calibration
To start a system calibration, open the Calibration Pane. Under the Calibration pane, you can choose to start a new calibration or to modify the existing one. For this guide, click New Calibration for a fresh calibration.
Masking
Before the system calibration, any extraneous reflections or unnecessary markers should ideally be removed or covered so that they are not seen by the cameras. However, it may not always be possible to remove all of them. In this case, these extraneous reflections can be ignored by applying masks over them during the calibration.
Check the calibration pane to see if any of the cameras are seeing extraneous reflections or noise in their view. A warning sign will appear over these cameras.
Check the camera view of the corresponding camera to identify where the extraneous reflection is coming from, and if possible, remove them from the capture volume or cover them so that the cameras do not see them.
If reflections still exist, click Mask to automatically apply masks over all of the reflections detected in the camera views.
Once all of the reflections have been masked or removed, click Continue to proceed to the wanding step.
Wanding
In the wanding stage, we will use the Calibration Wand to collect wanding samples that will be used for calibrating the system.
Set the Calibration Type to Full.
Under the Wand settings, specify the wand that you will be used to calibrate the volume. It is very important to input the matching wand size here. When an incorrect dimension is given to Motive, the calibrated 3D volume will be scaled incorrectly.
Click Start Wanding to start collecting the wanding sample.
Once the wanding process starts. Bring your calibration wand into the capture volume and start waving the wand gently across the entire capture volume. Gently draw figure-eight repetitively with the wand to collect samples at varying orientations and cover as much space as possible for sufficient sampling. Wanding trails will be shown in colors on the 2D View. A grid/table displaying the status of the wanding process will show up in the Calibration pane to monitor the progress.
As each camera collects the wanding samples, the camera grid representing the wanding status of each camera will start changing its color to bright green. This provides visual feedback on whether sufficient samples have been collected by each camera. Wave the wand until all boxes are filled with bright green color.
Once enough samples have been collected, press the Start Calculation button to start calibrating. The calculation may take a few minutes to complete.
When the calculation is finished, its results will get displayed. If the overall result is acceptable, click Continue to proceed to setting up the ground. If the result is not satisfactory, click Cancel and go through the wanding once more.
Wanding tips
For best results, collect wand samples evenly and comprehensively throughout the volume, covering both low and high elevations. If you wish to start calibrating inside the volume, cover one of the markers and expose it wherever you wish to start wanding. When at least two cameras detect all the three markers while no other reflections are present in the volume, the wand will be recognized, and Motive will start collecting samples.
Sufficient sample count for the calibration may vary for different sized volumes, but in general, collect 2500 ~ 6000 samples for each camera. Once a sufficient number of samples has been collected, press the button under the Calibration section.
During the wanding process, each camera needs to see only the 3-markers on the calibration wand. If any of the cameras are detecting extraneous reflections, go back to the masking step to mask them.
Setting the Ground Plane
Now that all of the cameras have been calibrated, the next step is to define the ground plane of the capture volume.
Place a Calibration Square inside the capture volume. Position the square so that the vertex marker is placed directly over the desired global origin.
Orient the calibration square so that the longer arm is directed towards the desired +Z axes and the shorter arm is directed towards the desired +X axes of the volume. Motive uses the y-up right-hand coordinate system.
Level the calibration square parallel to the ground plane.
At this point, the Calibration pane should detect which calibration square has been placed in the tracking volume. If not, you may want to specifically select the three markers on the calibration square from the 3D view in Motive.
Click Set Ground Plane to complete the calibration.
Once the camera system has been calibrated, Motive is ready to collect data. But before doing so, let's prepare the session folders for organizing the capture recordings and define the trackable assets, including Rigid Body and/or Skeletons.
Motive Recordings
See Also: Motive Basics page.
Motive Profiles
Motive's software configurations are saved to Motive Profiles (*.motive extension). All of the application-related settings can be saved into the Motive profiles, and you can export and import these files and easily maintain the same software configurations.
Place the retro-reflective markers onto subjects (Rigid Body or Skeleton) that you wish to track. Double-check that the markers are attached securely. For skeleton tracking, open the Builder pane, go to skeleton creation options, and choose a marker set you wish to use. Follow the skeleton avatar diagram for placing the markers. If you are using a mocap suit, make sure that the suit fits as tightly as possible. Motive derives the position of each body segment from related markers that you place on the suit. Accordingly, it is important to prevent the shifting of markers as much as possible. Sample marker placements are shown below.
See Also: Markers page for marker types, or Rigid Body Tracking and Skeleton Tracking page for placement directions.
Tip: For creating trackable assets, click the Layout → Create menu item to access the model creation layout.
Create Rigid Body
To define a Rigid Body, simply select three or more markers in the Perspective View, right-click, and select Rigid Body → Create Rigid Body From Selected. You can also utilize CTRL+T hotkey for creating Rigid Body assets. You can also use the Builder pane to define the Rigid Body.
Create Skeleton
To define a skeleton, have the actor enter the volume with markers attached at appropriate locations. Open the Builder pane and select Skeleton and Create. Under the marker set section, select a marker set you wish to use, and a corresponding model with desired marker locations will be displayed. After verifying that the marker locations on the actor correspond to those in the Builder pane, instruct the actor to strike the calibration pose. Most common calibration pose used is the T-pose. The T-pose requires a proper standing posture with back straight and head looking directly forward. Then, both arms are stretched to sides, forming a “T” shape. While in T-pose, select all of the markers within the desired skeleton in the 3D view and click Create button in the Builder pane. In some cases, you may not need to select the markers if only the desired actor is in view.
See Also: Rigid Body Tracking page and Skeleton Tracking page.
Tip: For recording capture, access the Layout → Capture menu item, or the to access the capture layout
Once the volume is calibrated and skeletons are defined, now you are ready to capture. In the Control Deck at the bottom, press the dimmed red record button or simply press the spacebar when in the Live mode to begin capturing. This button will illuminate in bright red to indicate recording is in progress. You can stop recording by clicking the record button again, and a corresponding capture file (TAK extension), also known as capture Take, will be saved within the current session folder. Once a Take has been saved, you can playback captures, reconstruct, edit, and export your data in a variety of formats for additional analysis or use with most 3D software.
When tracking skeletons, it is beneficial to start and end the capture with a T-pose. This allows you to recreate the skeleton in post-processing when needed.
See Also: Data Recording page.
After capturing a Take. Recorded 3D data and its trajectories can be post-processed using the Data Editing tools, which can be found in the Edit Tools pane. Data editing tools provide post-processing features such as deleting unreliable trajectories, smoothing select trajectories, and interpolating missing (occluded) marker positions. Post-editing the 3D data can improve the quality of tracking data.
Tip: For data editing, access the Layout → Edit menu item, or the to access the capture layout
General Editing Steps
Skim through the overall frames in a Take to get an idea of which frames and markers need to be cleaned up.
Refer to the Labels pane and inspect gap percentages in each marker.
Select a marker that is often occluded or misplaced.
Look through the frames in the Graph pane, and inspect the gaps in the trajectory.
For each gap in frames, look for an unlabeled marker at the expected location near the solved marker position. Re-assign the proper marker label if the unlabeled marker exists.
Use Trim Tails feature to trim both ends of the trajectory in each gap. It trims off a few frames adjacent to the gap where tracking errors might exist. This prepares occluded trajectories for Gap Filling.
Find the gaps to be filled, and use the Fill Gaps feature to model the estimated trajectories for occluded markers.
Re-Solve assets to update the solve from the edited marker data
Markers detected in the camera views get trajectorized into 3D coordinates. The reconstructed markers need to be labeled for Motive to distinguish different trajecectories within a capture. Trajectories of annotated reconstructions can be exported individually or used (solved altogether) to track the movements of the target subjects. Markers associated with Rigid Bodies and Skeletons are labeled automatically through the auto-labeling process. Note that Rigid Body and Skeleton markers can be auto-labeled both during Live mode (before capture) and Edit mode (after capture). Individual markers can also be labeled, but each marker needs to be manually labeled in post-processing using assets and the Labeling pane. These manual Labeling tools can also be used to correct any labeling errors. Read through the Labeling page for more details in assigning and editing marker labels.
Auto-label: Automatically label sets of Rigid Body markers and skeleton markers using the corresponding asset definitions.
Manual Label: Labeling individual markers manually using the Labeling, assigning labels defined in the Marker Set, Rigid Body, or Skeleton assets.
See Also: Labeling page.
Changing Marker Labels and Colors
When needed, you can use the Constraints pane to adjust marker labels for both Rigid Body and Skeleton markers. You can also adjust markers sticks and marker colors as needed.
Motive exports reconstructed 3D tracking data in various file formats, and exported files can be imported into other pipelines to further utilize capture data. Supported formats include CSV and C3D for Motive: Tracker, and additionally, FBX, BVH, and TRC for Motive: Body. To export tracking data, select a Take to export and open the export dialog window, which can be accessed from File → Export Tracking Data or right-click on a Take → Export Tracking data from the Data pane. Multiple Takes can be selected and exported from Motive or by using the Motive Batch Processor. From the export dialog window the frame rate, measurement scale, and frame range of exported data can be configured. Frame ranges can also be specified by selecting a frame range in the Graph View pane before exporting a file. In the export dialog window, corresponding export options are available for each file format.
See Also: Data Export page.
Motive offers multiple options to stream tracking data onto external applications in real-time. Tracking data can be streamed in both Live mode and Edit mode. Streaming plugins are available for Autodesk Motion Builder, Visual3D, The MotionMonitor, Unreal Engine 4, 3ds Max, Maya (VCS), and VRPN, and they can be downloaded from the OptiTrack website. For other streaming options, the NatNet SDK enables users to build custom client and server applications to stream capture data. Common motion capture applications rely on real-time tracking, and the OptiTrack system is designed to deliver data at an extremely low latency even when streaming to third-party pipelines. Detailed instructions on specific streaming protocols are included in the PDF documentation that ships with the respective plugins or SDK's.
See Also: Data Streaming page
Below is a quick start guide for most Prime Color and Prime Color FS setups. This setup and settings optimize the Prime Color Camera systems and are strongly recommended for best performance. Please see our full pages for more in-depth information on each topic.
| PC | Network Devices |
|---|
| PC | Network Devices |
|---|
If you experience latency or camera drops, you may need to increase the specifications on certain components, especially if your setup includes larger Prime Color camera counts. Please reach out to our team, if you are experiencing any of these issues even after upgrading the following specifications above and setup below.
Each Prime Color camera must be uplinked and powered through a standard PoE connection that can provide at least 15.4 watts to each port simultaneously.
Please note that if your aggregation switch is PoE, you can plug your Prime Color Cameras directly into the aggregation switch. PoE injectors are optional and will only be required if your aggregation switch is not PoE.
Prime Color cameras connect to the camera system just like other Prime series camera models. Simply plug the camera onto a PoE switch that has enough available bandwidth and it will be powered and synchronized along with other tracking cameras. When you have two color cameras, they will need to be distributed evenly onto different PoE switches so that the data load is balanced out.
For 1-2 Prime Color Cameras it is recommended to use 1Gbps network switch with 1Gbps uplink port and a 1Gpbs NIC or higher. For 3+ Prime Color Cameras it is required to use network switches with a 10Gbps uplink port in conjunction with a 10Gbps designated NIC and their appropriate drivers.
When using multiple Prime Color cameras, we recommend connecting the color cameras directly into the 10-gigabit aggregation (uplink) switch, because such setup is best for preventing bandwidth bottleneck. A PoE injector will be required if the uplink switch does not provide PoE. This allows the data to travel directly onto the uplink switch and to the host computer through the 10-gigabit network interface. This will also separate the color cameras from the tracking cameras.
You'll want to remove as much bloatware from your PC in order to optimize your system and make sure minimal unnecessary background processes are running. Background process can take up valuable CPU resources from Motive and cause frame drops while running your camera system.
There are many external resources in order to remove unused apps and halt unnecessary background processes, so they will not be covered within the scope of this page.
As a general rule for all OptiTrack camera systems, you'll want to disable all Windows firewalls and either disable or remove any Antivirus software. If firewalls and Antivirus software is enabled, this will cause frame drops while running your camera system.
In order for Motive to run above other processes, you'll need to change the Priority of Motive.exe to High.
Right Click on the Motive shortcut from your Desktop
In the Target: text field enter the below path, this will allow Motive to run at High Priority that will persist from closing and reopening Motive.
C:\Windows\System32\cmd.exe /C start "" /high "C:\Program Files\OptiTrack\Motive\Motive.exe"
Please refrain from setting the priority to Realtime. If Realtime is selected, this can cause loss of input control (mouse, keyboard, etc.) since Windows can prioritize Motive above input processes.
If you're running a system with a CPU with a lower core count, you may need to disable Motive from running on a couple of cores. This will help stabilize the overall system and free up some cores for other Windows required processes.
From the Task Manager, navigate to the Details tab and right click on Motive.exe
Select Set Affinity
From this window, uncheck the cores you wish to disallow Motive.exe to run on.
Click OK
Please note that you should only ever disable 2 cores or less to insure Motive still runs smoothly.
We recommend that you start with only one core and work your way up to two if you're still experiencing frame drop issues with your camera system.
Windows IoT is a stripped down version of Windows OS. This can offer many benefits in terms of running a smooth system with very little 'extras' that come standard with more commercial versions of Windows. Windows IoT can aid further in terms of Prime Color Camera system performance.
Your Network Interface Card has a few settings that you'll need to change in order to optimize your system and reduce issues when capturing Prime Color Camera video.
To navigate to the camera network's NIC:
Open Windows Settings
Select Ethernet from the navigation sidebar
Under Related settings select Change adapter options
From the Network Connections pop up window, right click on your NIC and select Properites
Select the Configure... button and navigate to the Advanced tab
For the Speed and Duplex property, you'll want to change this to the highest throughput of your NIC. If you have a 10Gbps NIC, you'll want to make sure that 10Gbps Full Duplex is selected. This property allows the NIC to operate at it's full range. If this setting is not altered to Full, Windows has the tendency to throttle the NIC throughput causing a 10Gbps NIC to only be sending data at 2Gbps.
Interrupt Moderation allows the NIC to moderate interrupts. When there is a significant amount of data being uplinked to Motive, this can cause more interrupts to occur thus hindering the system performance. You'll want to Disable this property.
After the above properties have been applied, the NIC will need to go through a reboot process. This process is automatic, however, it will make it appear that your camera network is down for a few minutes. This is normal and once the NIC is rebooted, should begin to work as expected.
Although not recommended, you may use a laptop PC to run Prime Color Camera system. When using a laptop PC, you'll need to use an external network adapter for. The above settings will typically not apply to these types of adapters, so no properties will need to changed.
It is important to use a Thunderbolt port adapter with corresponding Thunderbolt ports on your laptop as opposed to a standard USB-C adapters/ports.
By default this value is set to 50, however, depending on the specifications of your particular system this value may need to be lower or can be raised higher so long as your system can handle the increased data output.
By default this value is set to full resolution of 1920 x 1080p. Typically you will not need to alter this setting.
This page provides instructions on how to set up and use the OptiTrack active marker solution.
Additional Note
This guide is for only. Third-party IR LEDs will not work with instructions provided on this page.
This solution is supported for Ethernet camera systems (Slim 13E or Prime series cameras) only. USB camera systems are not supported.
Motive version 2.0 or above is required.
This guide covers active component firmware versions 1.0 and above; this includes all active components that were shipped after September 2017.
For active components that were shipped prior to September 2017, please see the page for more information about the firmware compatibility.
The OptiTrack Active Tracking solution allows synchronized tracking of active LED markers using an OptiTrack camera system. Consisting of the Base Station and the users choice Active Tags that can be integrated in to any object and/or the "Active Puck" which can act as its own single Rigid Body.
Connected to the camera system the Base Station emits RF signals to the active markers, allowing precise synchronization between camera exposure and illumination of the LEDs. Each active marker is now uniquely labeled in Motive software, allowing more stable Rigid Body tracking since active markers will never be mislabeled and unique marker placements are no longer be required for distinguishing multiple Rigid Bodies.
Sends out radio frequency signals for synchronizing the active markers.
Powered by PoE, connected via Ethernet cable.
Must be connected to one of the switches in the camera network.
Connects to a USB power source and illuminates the active LEDs.
Receives RF signals from the Base Station and correspondingly synchronizes illumination of the connected active LED markers.
Emits 850 nm IR light.
4 active LEDs in each bundle and up to two bundles can be connected to each Tag.
(8 Active LEDs (4(LEDs/set) x 2 set) per Tag)
Size: 5 mm (T1 ¾) Plastic Package, half angle ±65°, typ. 12 mW/sr at 100mA
An active tag self-contained into a trackable object, providing information with 6 DoF for any arbitrary object that it's attached to. Carries a factory installed Active Tag with 8 LEDs and a rechargeable battery with up to 10-hours of run time on a single charge.
Connects to one of the PoE switches within the camera network.
For best performance, place the base station near the center of your tracking space, with unobstructed lines of sight to the areas where your Active Tags will be located during use. Although the wireless signal is capable of traveling through many types of obstructions, there still exists the possibility of reduced range as a result of interference, particularly from metal and other dense materials.
Do not place external electromagnetic or radiofrequency devices near the Base Station.
When Base Station is working properly, the LED closest to the antenna should blink green when Motive is running.
BaseStation LEDs
Note: Behavior of the LEDs on the base station is subject to be changed.
Communication Indicator LED: When the BaseStation is successfully sending out the data and communicating with the active pucks, the LED closest to the antenna will blink green. If this LED lights is red, it indicates that the BaseStation has failed to establish a connection with Motive.
Interference Indicator LED: The middle LED is an indicator for determining whether if there are other signal-traffics on the respective radio channel and PAN ID that might be interfering with the active components. This LED should stay dark in order for the active marker system to work properly. If it flashes red, consider switching both the channel and PAN ID on all of the active components.
Power Indicator LED: The LED located at the corner, furthest from the antenna, indicates power for the BaseStation.
Connect two sets of active markers (4 LEDs in each set) into a Tag.
Connect the battery and/or a micro USB cable to power the Tag. The Tag takes 3.3V ~ 5.0V of inputs from the micro USB cable. For powering through the battery, use only the batteries that are supplied by us. To recharge the battery, have the battery connected to the Tag and then connect the micro USB cable.
To initialize the Tag, press on the power switch once. Be careful not to hold down on the power switch for more than a second, because it will trigger to start the device in the firmware update (DFU) mode. If it initializes in the DFU mode, which is indicated by two orange LEDs, just power off and restart the Tag. To power off the Tag, hold down on the power switch until the status LEDs go dark.
Once powered, you should be able to see the illumination of IR LEDs from the 2D reference camera view.
Puck Setup
Press the power button for 1~2 seconds and release. The top-left LED will illuminate in orange while it initializes. Once it initializes the bottom LED will light up green if it has made a successful connection with the base station. Then the top-left LED will start blinking in green indicating that the sync packets are being received.
Active Pattern Depth
Settings → Live Pipeline → Solver Tab with Default value = 12
This adjusts the complexity of the illumination patterns produced by active markers. In most applications, the default value can be used for quality tracking results. If a high number of Rigid Bodies are tracked simultaneously, this value can be increased allowing for more combinations of the illumination patterns on each marker. If this value is set too low, duplicate active IDs can be produced, should this error appear increase the value of this setting.
Minimum Active Count
Settings → Live Pipeline → Solver Tab with Default value = 3
Setting the number of rays required to establish the active ID for each on frame of an active marker cycle. If this value is increased, and active makers become occluded it may take longer for active markers to be reestablished in the Motive view. The majority of applications will not need to alter this setting.
Active Marker Color
Settings → Views → 3D Tab with Default color = blue
The color assigned to this setting will be used to indicate and distinguish active and passive markers seen in the viewer pane of Motive.
For tracking of the active LED markers, the following camera settings may need to be adjusted for best tracking results:
For tracking the active markers, set the camera exposures a bit higher compared to when tracking passive markers. This allows the cameras to better detect the active markers. The optimal value will vary depending on the camera system setups, but in general, you would want to set the camera exposure between 400 ~ 750, microseconds.
Rigid body definitions that are created from actively labeled reconstructions will search for specific marker IDs along with the marker placements to track the Rigid Body. Further explained in the following section.
Duplicate active frame IDs
For the active label to properly work, it is important that each marker has a unique active ID. When there are markers sharing the same ID, there may be problems when reconstructing those active markers. In this case, the following notification message will show up. If you see this notification, please contact support to change the active IDs on the active markers.
In recorded 3D data, the labels of the unlabeled active markers will still indicate that it is an active marker. As shown in the image below, there will be Active prefix assigned in addition to the active ID to indicate that it is an active marker. This applies only to individual active markers that are not auto-labeled. Markers that are auto-labeled using a trackable model will be assigned with a respective label.
When a trackable asset (e.g. Rigid Body) is defined using active markers, its active ID information gets stored in the asset along with marker positions. When auto-labeling the markers in the space, the trackable asset will additionally search for reconstructions with matching active ID, in addition to the marker arrangements, to auto-label a set of markers. This can add additional guard to the auto-labeler and prevents and mis-labeling errors.
Rigid Body definitions created from actively labeled reconstructions will search for respective marker IDs in order to solve the Rigid Body. This gives a huge benefit because the active markers can be placed in perfectly symmetrical marker arrangements among multiple Rigid Bodies and not run into labeling swaps. With active markers, only the 3D reconstructions with active IDs stored under the corresponding Rigid Body definition will contribute to the solve.
If a Rigid Body was created from actively labeled reconstructions, the corresponding Active ID gets saved under the corresponding Rigid Body properties. In order for the Rigid Body to be tracked, the reconstructions with matching marker IDs in addition to matching marker placements must be tracked in the volume. If the active ID is set to 0, it means no particular marker ID is given to the Rigid Body definition and any reconstructions can contribute to the solve.
This page includes all of the Motive tutorial video for visual learners.
Updated videos coming soon!
| Setting | Default Value | Description |
|---|---|---|
| Setting | Value | Description |
|---|---|---|
First, go into the perspective view pane > select a marker, then go to the Camera Preview pane > Eye Button > Set Marker Centroids: True. Make sure the cameras are in the object mode, then zoom into the selected marker in the 2D view. The marker will have two crosshairs on it; one white and one yellow. The amount of offset between the crosshairs will give you an idea of how closely the calculated 2D centroid location (thicker white line) aligns with the reconstructed position (thinner yellow line). Switching between the grayscale mode and the object mode will make the errors more distinguishable. The below image is an example of a poor calibration. A good calibration should have the yellow and white lines closely aligning with each other.
| Recommended | Minimum |
|---|---|
| UI Name | Description |
|---|---|
| Function | Default Control |
|---|---|
Each capture recording will be saved in a Take (TAK) file and related Take files can be organized in session folders. Start your capture by first creating a new Session folder. Create a new folder in the desired directory of the host computer and load the folder onto the Data pane by either clicking on the icon OR just by drag-and-dropping them onto the data management pane. If no session folder is loaded, all of the recordings will be saved onto the default folder located in the user documents directory (Documents\OptiTrack\Default). All of the newly recorded Takes will be saved within the currently selected session folder which will be marked with the symbol.
NIC drivers may need to be installed via disc or downloaded from the manufacture's support website. If you're unsure of where to find these drivers or how to install them, please reach out to our team.
If you're still experiencing issues with dropped frames even after altering the settings above, please reach out to our team for more information regarding Windows IoT.
In most cases your switch settings will not be required to be altered. However, if your switch has built in , you'll want to disable this feature.
It is recommended to close the during recording. This further stabilizes Motive minimizing lag and less frame drops.
Active tracking is supported only with the Ethernet camera system (Prime series or Slim 13E cameras). For instructions on how to set up a camera system see: .
For more information, please read through the page.
When tracking only active markers, the cameras do not need to emit IR lights. In this case, you can disable the IR settings in the .
With a BaseStation and Active Markers communicating on the same RF, active markers will be reconstructed and tracked in Motive automatically. From the unique illumination patterns, each active marker gets labeled individually, and a unique marker ID gets assigned to the corresponding reconstruction in Motive. These IDs can be monitored in the . To check the marker IDs of respective reconstructions, enable the Marker Labels option under the visual aids (), and the IDs of selected markers will be displayed. The marker IDs assigned to active marker reconstructions are unique, and it can be used to point to a specific marker within many reconstructions in the scene.
Details
Number
Varies
Denotes the number that Motive has assigned to that particular camera.
Device Type
Varies
Denotes which type of camera Motive has detected (PrimeX 41, PrimeX 13W, etc.)
Serial Number
Varies
Denotes the serial number of the camera. This information uniquely identifies the camera.
Focal Length
Varies
Denotes the distance between the camera's image sensor and its lens.
General
Enabled
Toggle 'On'
When Enabled is toggled on, the camera is active and able to collect marker data.
Rate
Maximum FPS
Set the system frame rate (FPS) to its maximum value. If you wish to use slower frame rate, use the maximum frame rate during calibration and turn it down for the actual recording.
Reconstruction
Toggle 'On'
Denotes when camera is participating in 3D construction.
Rate Multiplier
x1 (120Hz)
Denotes the rate multiplier. This setting is for syncing external devices with the camera system
Exposure
250 μs
Denotes the exposure of the camera. The higher the number, the more microseconds a camera's sensor is exposed to light. If you're having issue with seeing markers, raise the exposure. If there is too much reflection data in the volume, lower the exposure.
Threshold (THR)
200
Do not bother changing the Threshold (THR) or LED values, keep them at their default settings. The Values EXP and LED are linked so change only the EXP setting for brighter images. If you turn the EXP higher than 250, make sure to wand extra slow to avoid blurred markers.
LED
Toggle 'On'
In some instances you may want to turn off the IRLEDs on a particular camera. i.e. using an active wand for calibration reduces extraneous reflections from influencing a calibration.
Video Mode
Default: Object Mode
Changes video mode of the camera. For more information regarding camera video types, please see: Camera Video Types.
IR Filter
Toggle 'On'
*Special to PrimeX 13/13W, SlimX 13, and Prime Color FS cameras. Toggles from using 850 nm IR filter which allows for only 850 nm IR light to be visible. When toggled off, all light will be visible to the camera's image sensor.
Gain
1: Low (Short Range)
Set the Gain setting to low for all cameras. Higher gain settings will amplify noise in the image.
Display
Show Field of View
Toggle 'Off'
When toggled on this shows the camera's field of view. This is particularly useful when aiming and focusing upon setting up a camera volume.
Show Frame Delivery Info
Toggle 'Off'
When toggled on, this setting shows the frame delivery info for all the cameras in the system overlaid on the selected camera's camera viewport.
Solver Tab: [Advanced Setting] Residual (mm)
< 2.00
Set the allowable residual value smaller for the precision volume tracking. Any offset above 2.00 mm will be considered as inaccurate, and the corresponding 2D data will be excluded from reconstruction contribution.
Solver Tab: Minimum Rays to Start
≥ 3
Set the minimum required number of rays higher. More accurate reconstruction will be achieved when more rays converge within the allowable residual offset.
Camera Tab: Minimum Pixel Threshold
≥ 3
Since cameras are placed more close to the tracked markers, each marker will appear bigger in camera views. The minimum number of threshold pixels can be increased to filter out small extraneous reflections if needed.
Camera Tab: Circularity
≥ 3
Increasing the circularity value will filter out non-marker reflections. Furthermore, it prevents collecting data from merged reflections where the calculated centroid is no longer reliable.
OS: Windows 10, 11 (64-bit)
CPU: Intel i7 or better, 3+ GHz
RAM: 16GB of memory
GPU: GTX 1050 or better with the latest drivers and support for OpenGL 3.2+
OS: Windows 10, 11 (64-bit)
CPU: Intel i7, 3+ GHz
RAM: 8GB of memory
GPU that supports OpenGL 3.2+
Rotate view
Right + Drag
Pan view
Middle (wheel) click + drag
Zoom in/out
Mouse Wheel
Select in View
Left mouse click
Toggle selection in View
CTRL + left mouse click
Show one viewport
Shift + 1
Horizontally split the viewport
Shift + 2
Windows 10 or 11 Professional (64 Bit) | Designated 1Gbps NIC w/drivers |
CPU: Intel i9 or better 3.5GHz+ | Network switch with 1Gbps uplink port |
RAM: 16GB+ of memory |
GPU: GTX 1050 or better with latest drivers and supports OpenGL version 4.0 or higher. |
M.2 SSD |
Windows 10 or 11 Professional (64 Bit) Windows IoT (Contact Support) | Designated 10Gbps+ NIC w/drivers |
CPU: Intel i9 or better 3.5GHz+ | Network switch with 10Gbps+ uplink port |
RAM: 32GB+ of memory |
GPU: RTX 2070 or better with latest drivers and supports OpenGL version 4.0 or higher. |
M.2 SSD |
When an object is selected in Motive, all of its related properties will be listed under the Properties pane. For example, when a skeleton asset is selected in the 3D viewport, its corresponding skeleton properties will get listed in this pane, and we can view the settings and configure them as needed.
Likewise, this pane is also used to view the properties of the cameras and any other connected devices that are listed in the Devices pane.
and recorded Takes to view and configure their properties.
The top viewport is where 3D data is shown in Motive. Here, you can view and analyze 3D data within a calibrated capture volume. This panel will be used during the live capture and also in the playback of recorded data. In the perspective viewport, you can select any objects in the capture volume, use the context menu to perform actions, or use the Properties pane to view and modify the associated properties.
The bottom viewport is the Cameras viewport. Here, you can monitor the view of each camera in the system and apply mask filters. This pane is also used to examine markers, or IR lights, seen by the cameras in order to examine how the 2D data is processed and reconstructed into 3D coordinates.
The Control Deck, located at bottom of Motive, is where you can control recording (Live Mode) or playback (Edit Mode) of capture data. In the Live mode, you can use the control deck to start recording and assign filename for the capture. In the Edit mode, you can use this pane to control the playback of recorded Take(s).
Connected cameras will be listed under the Devices pane. This panel is where we can configure settings (FPS, exposure, LED, and etc.) for each camera and decide whether to use selected cameras for 3D tracking or reference videos. Only the cameras that are set to tracking mode will contribute to reconstructing 3D coordinates. Cameras in reference mode capture grayscale images for reference purposes only. The Devices pane can be accessed under the View tab in Motive or by clicking icon on the main toolbar.
This pane will be used in almost all of the workflows. The Devices pane can be accessed under the View tab in Motive or by clicking icon from the main toolbar.
You can use the dropdown menu at the top-left corner to switch between different viewports, and you can also use the button at the top-right corner to split the viewport into multiple. If desired, an additional View pane can be open by opening up a Viewer pane under the View tab or by clicking icons on the main toolbar.
The Calibration pane is used in camera calibration process. In order to compute 3D coordinates from captured 2D images, the camera system needs to be calibrated first. All tools necessary for calibration is included within the Calibration pane, and it can also be accessed under the View tab or by clicking icon on the main toolbar.
