### A4 Problem 2

Verfasst:

**13. Jul 2013 21:22**Hi there, I have some questions concerning the fundamental-matrix-task:

1. I tried to build my preliminary F with all right-value columns where the corresponding singular value is really close to 0 (so that matlab actually displays 0). However, the rank of the resulting F-matrix is not always >2. So should I rather than taking the column corresponding to the smallest singular vector choose a column that results in a F-matrix with rank >2, simply to let the enforce-rank function not be totally useless? I am a bit confused here...

2. What are 'small residuals' concerning the epipolar constraints? Depending on which right-value column I choose I get some values between -0.6 and 0.6. Does that fulfill this definition of 'small''?

I would appreciate any clarifications.

1. I tried to build my preliminary F with all right-value columns where the corresponding singular value is really close to 0 (so that matlab actually displays 0). However, the rank of the resulting F-matrix is not always >2. So should I rather than taking the column corresponding to the smallest singular vector choose a column that results in a F-matrix with rank >2, simply to let the enforce-rank function not be totally useless? I am a bit confused here...

2. What are 'small residuals' concerning the epipolar constraints? Depending on which right-value column I choose I get some values between -0.6 and 0.6. Does that fulfill this definition of 'small''?

I would appreciate any clarifications.