I have a 2D image and a 3D cad model. I have camera matrix P where P=k[R -RC]. How can I recalculate the 3 D model [X Y Z ] from that view which camera sees by pixel coordinates [u v]? Thanks in advance for your help.
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You can't. It's not possible. – Jodes Mar 19 '13 at 07:42
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Why is not possible, We have U=PX, U pixel coord, X world coord, and then X=INV(P)U. why this doesn't work? and if not can we just have view direction and then calculate the intersection with 3D model? – Mehdi Bahar Mar 19 '13 at 10:04