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We want to set up our own motion capture studio with the following requirements:
(1)we need 4-8 cameras;
(2)to capture 3D rigid body motion;
(3)to capture facial expression;
(4)the application software should be developed by ourselves based on the SDK you provide;

Based on the information you provided on the website, we find that one of the possible solutions is to bye some OptiTrack cameras from your company and develop the application software by ourselves. So here we want to know something more about your products, as follows:
(1)Which camera is the best choice according to our requirements?
(2)Does your Free Baseline SDK have the APIs which support the following operations?
a)Calibration;
b)3D reconstruction of the markers;
c)Do we need to develop our own applications for rigid motion capture if we bought the Rigid Body Toolkit? Or the Rigid Body Toolkit can be used to capture the rigid body motion directly without our further development?

Thanks!

1) The V100 camera is currently the best choice for mocap workloads. It has a global shutter, strobed illumination and VGA resolution.

2) While it is possible to build a mocap solution using the free Baseline OptiTrack SDK, it will only provide 2D marker location data (imager coordinates).

a) If you want a SDK solution which can provide multi-camera calibration, our Point Cloud or Rigid Body toolkits are the right choice. They provide API access to the calibration data, and include a tool to perform the calibration. The free Baseline OptiTrack SDK cannot perform multi-camera calibration.

b) SDK choices for 3D reconstruction of markers are the same, Point Cloud and Rigid Body both include access to untracked 3D point clouds.

c) If you use the Rigid Body toolkit, then it will perform the tracking of custom rigid bodies (3+ marker configurations) for you. The tracking data can be accessed using the API or via real-time network streaming.


While the requirements you listed at the top of your post indicate a need for facial mocap, and the desire to write your own software, we would still recommend taking a look at our ARENA software. There is a lot of work involved in writing the motion capture software, and Arena is a good solution.

Lastly, here is a link to our software comparison page.