What must be the minimum size of the chessboard pattern to obtain most accurate values for distortion co-efficients?

asked 2016-11-27 00:52:56 -0600

roof1997 gravatar image

I need to obtain distortion coefficients for an aerial image.I propose to setup a grid pattern on the ground and use it for calibration.How big should the grid pattern be ? Is there any other way to undistort an aerial image?

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