Convert 2d image to 3d

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Dekel Mashiach
Dekel Mashiach 2022-6-6
评论: Matt J 2022-6-11
Hi;
I'm trynig to convert 2d image to 3d with the intrinsic matrix, I expect to get in the x-axis the distance in millimeters and do not understand why it does not work. hope someone can help..

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Matt J
Matt J 2022-6-6
编辑:Matt J 2022-6-6
You cannot recover a 3D point from only a single 2D projection of that point. This is because every point [X,Y,Z] along the line of sight from the camera to [u,v] also maps to [u,v] according to the equation you've shown. Because it is a many-to-one mapping from [X,Y,Z] to [u,v], you cannot invert the equation uniquely.
  35 个评论
Dekel Mashiach
Dekel Mashiach 2022-6-11
Given that I placed the correct R_T, after normalizing what is the next step I need to do for u, v?
Matt J
Matt J 2022-6-11
Everything you have now is correct except for R_T.

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