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 | 1 | initial version |
"But how can I know that camera calibtation was optimal? "
That's a tricky question. A good rmse (well below a pixel for most cameras) is a good hint, but not the perfect solution as a calibration with a single pattern could also give a good rmse but a bad calibration in total.
"And how to visualize calibration effect?" You can create a grid of points across your undistorted image and use cv::undistortPoints to get their original poses. Draw lines between these two points and you get an understanding of the distortion effect.
| | 2 | No.2 Revision |
"But how can I know that camera calibtation was optimal? "
That's a tricky question. A good rmse (well below a pixel for most cameras) is a good hint, but not the perfect solution as a calibration with a single pattern could also give a good rmse but a bad calibration in total.
"And how to visualize calibration effect?"
effect?"
You can create a grid of points across your undistorted image and use cv::undistortPoints to get their original poses. Draw lines between these two points and you get an understanding of the distortion effect. effect.
