Calibration of images to obtain a top-view for points that lie on a same plane

Question

Calibration:

I have calibrated the camera using this vision toolbox in Matlab. I used checkerboard images to do so. After calibration I get the cameraPa

Answer 1

Abhishek,

I don't entirely understand what you are trying to do. Are your points on a plane, and are you trying to create a bird's eye view of that plane?

If so, then you need to know the extrinsics, R and t, describing the relationship between that plane and the camera. One way to get R and t is to place a checkerboard on the plane, and then use the extrinsics function.

After that, you can follow the directions in the question you cited to get the homography. Once you have the homography, you can create a projective2D object, and use its transformPointsForward method to transform your points.