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2017-03-21 17:15:05 -0500 received badge  Student (source)
2015-08-10 08:21:33 -0500 asked a question How to flip a camera calibration?

Hi,

does anyone know if it is possible to vertically flip intrinsic camera calibration settings so that I can use inverted images from an already calibrated camera?

To be precise, I have intrinsically calibrated a camera using chessboard images. If all the input images are then vertically flipped, does anyone know how to programmatically calculate the intrinsic camera settings that would be generated from the flipped images, based on the already gathered intrinsic settings from when the images were in their original orientation?

Thank you!

2015-08-06 05:24:11 -0500 asked a question How to flip a camera calibration?

Hi,

I have intrinsically calibrated a camera using chessboard images. If all the input images are then vertically flipped, does anyone know how to programmatically calculate the intrinsic camera settings that would be generated from the flipped images, based on the already gathered intrinsic settings from when the images were in their original orientation?

Thanks,

Patrick

2013-01-30 10:55:48 -0500 asked a question stereoCalibrate instability with 3D artifact

I get poor and unstable results performing a stereo calibration against a 3D object. Filtering outliers makes the error alternate between mediocre and extremely high.

If I resubmit the data only with points on the object's bottom plane, and do the same type of filtering, then the stereo solution is well-behaved and satisfactory.

The cameras are not parallel, but I calibrate their intrinsics separately. I'm using 2.4.3. Please advise what is happening here.

Source files

Planar Trials
Error: 0.747405
Error: 0.745686
Error: 0.73781
Error: 0.758419

3D Trials
Error: 1069.91
Error: 29310.4
Error: 5.67888
Error: 461.579
Error: 5.39043
Error: 603.938
Error: 6.34686
Error: 5.95827
Error: 2406.1
Error: 7.11539

End