Sign up ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free.

Given the camera matrix, can I find the focal length of this camera ?

share|cite|improve this question

1 Answer 1

Depends on what form the camera matrix is in.
Typically it is a 3x3 matrix that contains the focal lengths along the diagonal - with different Fx and Fy axis focal lengths to measure the astigmatism of the lens (the third value Fz isn't used)


share|cite|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.