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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
by 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 agoIt'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