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Transform 2D Point into 3D Line

asked 2019-01-17 11:24:49 -0500

LuisK gravatar image

Im looking for a function that transforms a 2D image-point into a 3D line in my model (specific coord system, belonging to translation and rotation vectors received by function solvePnP() ).

I have: cameraMatrix, rotation and translation vectors, distortionCoefficients.

It would be the inverse function of projectPoints(), which takes a 3D point and transforms it into a 2d image point.

Is there any solution for this issue?

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I suggest that you try the Programming -- Math and Physics forum on

sjhalayka gravatar imagesjhalayka ( 2019-01-17 18:52:17 -0500 )edit

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answered 2019-01-19 14:35:41 -0500

Tetragramm gravatar image

Take a look HERE. the variable los after line 167 contains what you're looking for.

Note that it is a unit vector proceeding from camera_translation as the origin, so you'll need to take care of that into whatever format you're using.

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Asked: 2019-01-17 11:24:49 -0500

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Last updated: Jan 19 '19