5 ms·

Anyone know how the calibration works? I honestly cannot think of a way the checkerboard would help eliminate interference.

• waterlesscloud 16y ago
  I don't think the checkerboard is for interference, it's in his single kinect videos too. Probably for aligning his texture maps from the video camera on the the depth map from the ir camera. Edit- Oops, I'm wrong. It's not in the single kinect vids. I still think it's for mapping video to depth though.
• kj12345 16y ago
  I think it's to calculate where the cameras are in the room. If you know where the four corners of the board are in each view you can figure out the position of each camera, and then the two views can be merged properly.
  • joeyo 16y ago
    It's not only to calculate the position of the cameras (x,y,z) but also the additional DoF of the lens orientation (roll,pitch,yaw). Any set of eight points would work, but a checkerboard provides a nice surface with a known geometry. The checkerboard is also handy for correcting lens aberration. Here is the standard algorithm: http://en.wikipedia.org/wiki/Eight-point_algorithm http://en.wikipedia.org/wiki/Eight-point_algorithm
• dtf 16y ago
  To remove lens distortion? The Kinect has a fairly wide field of view.