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127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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#include "rotationConverters.hpp"
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#include <cmath>
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#include <opencv2/calib3d.hpp>
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#include <opencv2/core.hpp>
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#define CALIB_PI 3.14159265358979323846
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#define CALIB_PI_2 1.57079632679489661923
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void calib::Euler(const cv::Mat& src, cv::Mat& dst, int argType)
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{
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if((src.rows == 3) && (src.cols == 3))
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{
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//convert rotation matrix to 3 angles (pitch, yaw, roll)
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dst = cv::Mat(3, 1, CV_64F);
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double pitch, yaw, roll;
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if(src.at<double>(0,2) < -0.998)
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{
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pitch = -atan2(src.at<double>(1,0), src.at<double>(1,1));
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yaw = -CALIB_PI_2;
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roll = 0.;
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}
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else if(src.at<double>(0,2) > 0.998)
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{
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pitch = atan2(src.at<double>(1,0), src.at<double>(1,1));
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yaw = CALIB_PI_2;
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roll = 0.;
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}
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else
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{
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pitch = atan2(-src.at<double>(1,2), src.at<double>(2,2));
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yaw = asin(src.at<double>(0,2));
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roll = atan2(-src.at<double>(0,1), src.at<double>(0,0));
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}
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if(argType == CALIB_DEGREES)
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{
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pitch *= 180./CALIB_PI;
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yaw *= 180./CALIB_PI;
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roll *= 180./CALIB_PI;
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}
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else if(argType != CALIB_RADIANS)
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CV_Error(cv::Error::StsBadFlag, "Invalid argument type");
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dst.at<double>(0,0) = pitch;
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dst.at<double>(1,0) = yaw;
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dst.at<double>(2,0) = roll;
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}
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else if( (src.cols == 1 && src.rows == 3) ||
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(src.cols == 3 && src.rows == 1 ) )
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{
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//convert vector which contains 3 angles (pitch, yaw, roll) to rotation matrix
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double pitch, yaw, roll;
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if(src.cols == 1 && src.rows == 3)
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{
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pitch = src.at<double>(0,0);
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yaw = src.at<double>(1,0);
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roll = src.at<double>(2,0);
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}
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else{
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pitch = src.at<double>(0,0);
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yaw = src.at<double>(0,1);
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roll = src.at<double>(0,2);
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}
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if(argType == CALIB_DEGREES)
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{
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pitch *= CALIB_PI / 180.;
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yaw *= CALIB_PI / 180.;
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roll *= CALIB_PI / 180.;
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}
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else if(argType != CALIB_RADIANS)
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CV_Error(cv::Error::StsBadFlag, "Invalid argument type");
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dst = cv::Mat(3, 3, CV_64F);
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cv::Mat M(3, 3, CV_64F);
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cv::Mat i = cv::Mat::eye(3, 3, CV_64F);
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i.copyTo(dst);
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i.copyTo(M);
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double* pR = dst.ptr<double>();
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pR[4] = cos(pitch);
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pR[7] = sin(pitch);
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pR[8] = pR[4];
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pR[5] = -pR[7];
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double* pM = M.ptr<double>();
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pM[0] = cos(yaw);
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pM[2] = sin(yaw);
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pM[8] = pM[0];
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pM[6] = -pM[2];
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dst *= M;
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i.copyTo(M);
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pM[0] = cos(roll);
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pM[3] = sin(roll);
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pM[4] = pM[0];
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pM[1] = -pM[3];
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dst *= M;
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}
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else
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CV_Error(cv::Error::StsBadFlag, "Input matrix must be 1x3, 3x1 or 3x3" );
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}
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void calib::RodriguesToEuler(const cv::Mat& src, cv::Mat& dst, int argType)
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{
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CV_Assert((src.cols == 1 && src.rows == 3) || (src.cols == 3 && src.rows == 1));
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cv::Mat R;
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cv::Rodrigues(src, R);
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Euler(R, dst, argType);
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}
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void calib::EulerToRodrigues(const cv::Mat& src, cv::Mat& dst, int argType)
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{
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CV_Assert((src.cols == 1 && src.rows == 3) || (src.cols == 3 && src.rows == 1));
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cv::Mat R;
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Euler(src, R, argType);
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cv::Rodrigues(R, dst);
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}
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