updateAlt         396 modules/calib3d/include/opencv2/calib3d/calib3d_c.h     bool updateAlt( const CvMat*& param, CvMat*& JtJ, CvMat*& JtErr, double*& errNorm );
updateAlt        1451 modules/calib3d/src/calibration.cpp         bool proceed = solver.updateAlt( _param, _JtJ, _JtErr, _errNorm );
updateAlt        1884 modules/calib3d/src/calibration.cpp         if( !solver.updateAlt( param, JtJ, JtErr, _errNorm ))