Does the Stereo calibration tutorial work for angled cameras?
2 views (last 30 days)
Show older comments
I am following this tutorial: http://www.mathworks.es/es/help/vision/ug/stereo-vision.html to calibrate two cameras to obtain 3D images. My cameras are not parallel, they are angled approximatelly 60º and I don't know if that tutorial works with angled cameras. So far I have taken over 20 pictures and I have run the provided code but the results that I get are really bad.
This is the result that I am getting:
Do you know if that tutorial works with angled cameras?
0 Comments
Answers (1)
Dima Lisin
on 23 Sep 2014
Have you looked at the plot produced by showReprojectionErrors? The mean reprojection error should ideally be less than 0.5 of a pixel. If you see image pairs that have relatively high reprojection errors, try excluding those and recalibrating.
If most image pairs have high reprjection errors, take a look at your calibration images. See if they are out of focus, or if the checkerboard is at very oblique angles. Also, make sure that the calibration images give you points in all parts of the image. If you have any of these problems, then you need to take some more calibration images.
4 Comments
Dima Lisin
on 26 Sep 2014
If you can't calibrate the cameras individually, that indicates a problem with the calibration images. Can you post them, so that I can take a look?
See Also
Categories
Find more on Camera Calibration in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!