decomposeProjectionMatrix  378 modules/calib3d/include/opencv2/calib3d.hpp CV_EXPORTS_W void decomposeProjectionMatrix( InputArray projMatrix, OutputArray cameraMatrix,
decomposeProjectionMatrix  103 modules/calib3d/test/test_decompose_projection.cpp         decomposeProjectionMatrix(P, K, R, homogCameraCenter);