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views:

52

answers:

1
Q: 

Camera and projector calibration

Hi everyone,

I have a question about camera calibration. I've followed approach shown in a book Learning OpenCV for camera calibration process. But the calibrated(undistorted) image is worse than the original one. Is it possible that my camera don't need calibration anymore?(means that the calibration is done by some driver or something like that)? In fact it seems that the original image is not distorted at all. I know that it's not only about distortion, but what would you recommend me to do?

Thanks for every reply

A: 

The calibration cannot be done by the driver. If you're planning 3D reconstruction, then you cannot do without a calibration matrix.

Jacob  2010-07-07 18:24:25
ok thanks :) in fact it seems that when I do calibration with about 8 snapshots it's ok, but when I'll do it with more than about 12, it's giving really bad results.. maybe it's necessary to not use more than 10 snapshots for the calibration. I've red somewhere what's the optimal, but not sure where. Thank you. I am planing 3D reconstruction, but I'm a beginner.
J3nc3k  2010-07-07 18:34:44
you are overfitting.
Egon  2010-07-10 16:22:26

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