projects points from the model coordinate space to the image coordinates.
Also computes derivatives of the image coordinates w.r.t the intrinsic
and extrinsic camera parameters
Namespace: OpenCvSharp.CPlusPlus
Assembly: OpenCvSharp.CPlusPlus (in OpenCvSharp.CPlusPlus.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax
public static void ProjectPoints( IEnumerable<Point3d> objectPoints, double[] rvec, double[] tvec, double[,] cameraMatrix, double[] distCoeffs, out Point2d[] imagePoints, out double[,] jacobian, double aspectRatio = 0 )
Parameters
- objectPoints
- Type: System.Collections.GenericIEnumerablePoint3d
Array of object points, 3xN/Nx3 1-channel or 1xN/Nx1 3-channel, where N is the number of points in the view. - rvec
- Type: SystemDouble
Rotation vector (3x1). - tvec
- Type: SystemDouble
Translation vector (3x1). - cameraMatrix
- Type: SystemDouble
Camera matrix (3x3) - distCoeffs
- Type: SystemDouble
Input vector of distortion coefficients (k_1, k_2, p_1, p_2[, k_3[, k_4, k_5, k_6]]) of 4, 5, or 8 elements. If the vector is null, the zero distortion coefficients are assumed. - imagePoints
- Type: OpenCvSharp.CPlusPlusPoint2d
Output array of image points, 2xN/Nx2 1-channel or 1xN/Nx1 2-channel - jacobian
- Type: SystemDouble
Optional output 2Nx(10 + numDistCoeffs) jacobian matrix of derivatives of image points with respect to components of the rotation vector, translation vector, focal lengths, coordinates of the principal point and the distortion coefficients. In the old interface different components of the jacobian are returned via different output parameters. - aspectRatio (Optional)
- Type: SystemDouble
Optional “fixed aspect ratio” parameter. If the parameter is not 0, the function assumes that the aspect ratio (fx/fy) is fixed and correspondingly adjusts the jacobian matrix.
See Also