• Advertisement
Sign in to follow this  

3D to 2D mapping matrix

This topic is 3424 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Hi, I have a set of 3D points and a corresponding set of 2D points. I have to find out a projection matrix that defines the mapping from 3D to 2D. (Actually I have 2 images of the same object with different view points and the 3D reconstruction of the part that is common to both the images. I need to find the mapping from 3D to 2D). I tried to derive a (3 x 4) projective camera matrix in matlab but there was a dimensional error. It would be great if anyone could help me with this. Thanks a lot.

Share this post


Link to post
Share on other sites
Advertisement
You're not going to find a matrix that projects 3D to 2D points; it's a nonlinear transformation. AFAIK, camera estimation problems like this are usually solved using iterative numerical optimization. For example, see Wikipedia on bundle adjustment.

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement