Revision history [back]

Well,well,well. I am also a totally new to camera calibration techniques.But I still hope my words can help you.

1. Learning OpenCV is an older edition ,based on OpenCV 1.0. If you want to use the new OpenCV functions, I think you should follow the online documentions. And you also can find it in ../build/doc/.(but I dont know why, I cant find it in the OpenCV 3.0);
2. The function calirateCamera() returns a value , called rms(reprojection error) which can tell you your calibration precision. The rms should be between 0.1~1,with best something <0.5.
3. And there are some calibration samples in ../opencv/sources/samples/cpp,you can try it first when you write your own code.

good luck.

Well,well,well. I am also a totally new to camera calibration techniques.But I still hope my words can help you.

1. Learning OpenCV is an older edition ,based on OpenCV 1.0. If you want to use the new OpenCV functions, I think you should follow the online documentions. And you also can find it in ../build/doc/.(but I dont know why, I cant find it in the OpenCV 3.0);
2. The function calirateCamera() returns a value , called rms(reprojection error) which can tell you your calibration precision. The rms should be between 0.1~1,with best something <0.5.
3. And there are some calibration samples in ../opencv/sources/samples/cpp,you can try it first when you write your own code.
4. There are some tips @StevenPuttemans gave me, and I think it may be useful to you.
   • Make sure the dimensions of your calibration pattern are uneven.
   • Make sure you have enough calibration images, using 2 images will never yield a good camera calibration.
   • Be sure to calibrate every single region of your camera range, if not, you will have large deformations towards the non calibrated areas.