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In Real time facial motion capture system, we were getting camera data over wifi, also using laptop camera, also using external webcam.
I have worked with multiple cameras to get a 360 degree stitched camera view.
What I can do for you guys is build a simulation of 8 camera data using only two cameras, as only the processing of camera frames matters, depending on the hardware used, so that I don't have to buy additional cameras, I already have hardware and can be done in low cost and quickly.
After completion I can share you the build software or raw program file.