cam_par_to_cam_matT_cam_par_to_cam_matcam_par_to_cam_matCamParToCamMatCamParToCamMat (Operator)

Name

cam_par_to_cam_matT_cam_par_to_cam_matcam_par_to_cam_matCamParToCamMatCamParToCamMat — Compute a camera matrix from internal camera parameters.

Signature

Description

cam_par_to_cam_matcam_par_to_cam_matcam_par_to_cam_matCamParToCamMatCamParToCamMat computes the camera matrix CameraMatrixCameraMatrixCameraMatrixCameraMatrixcameraMatrix as well as the image width ImageWidthImageWidthImageWidthImageWidthimageWidth, and the image height ImageHeightImageHeightImageHeightImageHeightimageHeight from the internal camera parameters CameraParamCameraParamCameraParamCameraParamcameraParam. The internal camera parameters CameraParamCameraParamCameraParamCameraParamcameraParam can be determined with camera_calibrationcamera_calibrationcamera_calibrationCameraCalibrationCameraCalibration. cam_par_to_cam_matcam_par_to_cam_matcam_par_to_cam_matCamParToCamMatCamParToCamMat converts this representation of the internal camera parameters into the representation used by stationary_camera_self_calibrationstationary_camera_self_calibrationstationary_camera_self_calibrationStationaryCameraSelfCalibrationStationaryCameraSelfCalibration. The conversion can only be performed if the radial distortion coefficient Kappa is 0. If necessary, change_radial_distortion_cam_parchange_radial_distortion_cam_parchange_radial_distortion_cam_parChangeRadialDistortionCamParChangeRadialDistortionCamPar must be used to achieve this.

Parallelization

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Example (HDevelop)

* For the input data to camera_calibration, please refer to the
* example for camera_calibration.
camera_calibration (X, Y, Z, Rows, Cols, StartCamParam, StartPoses, \
                    ['all','~kappa'], CameraParam, FinalPoses, Errors)
cam_par_to_cam_mat (CameraParam, CameraMatrix, ImageWidth, ImageHeight)

* Alternatively, the following calls can be used.
camera_calibration (X, Y, Z, Rows, Cols, StartCamParam, StartPoses, \
                    'all', CameraParam, FinalPoses, Errors)
change_radial_distortion_cam_par ('adaptive', CameraParam, 0, CamParamOut)
cam_par_to_cam_mat (CamParamOut, CameraMatrix, ImageWidth, ImageHeight)

Result

If the parameters are valid, the operator cam_par_to_cam_matcam_par_to_cam_matcam_par_to_cam_matCamParToCamMatCamParToCamMat returns the value 2 (H_MSG_TRUE). If necessary an exception is raised.

Possible Predecessors

camera_calibrationcamera_calibrationcamera_calibrationCameraCalibrationCameraCalibration

See also

stationary_camera_self_calibrationstationary_camera_self_calibrationstationary_camera_self_calibrationStationaryCameraSelfCalibrationStationaryCameraSelfCalibration, cam_mat_to_cam_parcam_mat_to_cam_parcam_mat_to_cam_parCamMatToCamParCamMatToCamPar

Module

Calibration