cv::calibrateCamera results differ from cvCalibrateCamera_64d (Bug #53)

Added by Maria Dimashova about 15 years ago. Updated about 15 years ago.

Status:Done Start date:
Priority:High Due date:
Assignee:- % Done:

0%
Category:trash
Target version:-
Affected version: Operating System:
Difficulty: HW Platform:
Pull request:

Description

I extended CV_CameraCalibrationTest for C++ calibration functions. Revealed that cv::calibrateCamera results differ from cvCalibrateCamera_64d. Greatest difference is in distortion.

distortion
r0 -0.057670030594622231
r1 -3.0182431811675663 !!!!!
r2 -0.0048551557040140648
r3 -0.0075294477824362632
goodDistortion
r0 -0.12820999999999999
r1 -0.39440999999999998 !!!!!
r2 -0.0043499999999999997
r3 -0.0073200000000000001

Similar to the bug.
Uncomment CV_CameraCalibrationTest_CPP calibrate_test_cpp (cvtest/acalibration.cpp) to reproduce this bug.

History

#1
Updated by anonymous - about 15 years ago

fixed in 2585. it was a problem in test: in calibrate-camera-c just 4 distortion coefficients were estimated, whereas in calibrate-camera-cpp all the 5 coefficients are requested, thus they are different (no one knows yet, which variant is closer to the truth, since this is a regression test and there is no ground truth)

  • Status changed from Open to Done
  • (deleted custom field) set to fixed

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