Operator Reference
set_calib_data_observ_points (Operator)
set_calib_data_observ_points — Set point-based observation data in a calibration data model.
Signature
set_calib_data_observ_points( : : CalibDataID, CameraIdx, CalibObjIdx, CalibObjPoseIdx, Row, Column, Index, Pose : )
Description
For a calibration model of type
CalibSetup='calibration_object' (see
create_calib_data), cameras are calibrated based on so-called
observations of calibration objects. With
set_calib_data_observ_points, you store such an observation in
the calibration data model CalibDataID. An observation consists of
the following data:
CameraIdx:index of the observing camera
CalibObjIdx:index of the observed calibration object
CalibObjPoseIdx:index of the observed pose of the calibration object. You can choose it freely, without following a strict order. If you specify an index that already exists for the calibration object
CalibObjIdx, the corresponding observation data is replaced by the new one. Of course, the same index can be assigned to poses of different calibration objects.Row,Column,Index:Extracted image coordinates and corresponding index of the calibration marks of the calibration object.
RowandColumnare tuples containing the same number of elements.Indexcan either contain a tuple (of the same length) or the value 'all', indicating that the points[Row, Column]correspond in a one-to-one relation to the calibration marks of the calibration object. If the number of row or column coordinates does not match the number of calibration marks, a corresponding error message is returned.Pose:A roughly estimated pose of the observed calibration object relative to observing camera.
If you are using the HALCON calibration plate, it is recommended to use
find_calib_object instead of set_calib_data_observ_points,
since the contour information, which it stores in the calibration data
model, enables a more precise calibration procedure with
calibrate_cameras.
The observation data can be accessed later by calling
get_calib_data_observ_points using the same values for the
arguments CameraIdx, CalibObjIdx, and
CalibObjPoseIdx.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
This operator modifies the state of the following input parameter:
During execution of this operator, access to the value of this parameter must be synchronized if it is used across multiple threads.
Parameters
CalibDataID (input_control, state is modified) calib_data → (handle)
Handle of a calibration data model.
CameraIdx (input_control) number → (integer)
Index of the observing camera.
Default: 0
Suggested values: 0, 1, 2
CalibObjIdx (input_control) number → (integer)
Index of the calibration object.
Default: 0
Suggested values: 0, 1, 2
CalibObjPoseIdx (input_control) number → (integer)
Index of the observed calibration object.
Default: 0
Suggested values: 0, 1, 2
Restriction:
CalibObjPoseIdx >= 0
Row (input_control) number-array → (real / integer)
Row coordinates of the extracted points.
Column (input_control) number-array → (real / integer)
Column coordinates of the extracted points.
Index (input_control) number-array → (integer / string)
Correspondence of the extracted points to the calibration marks of the observed calibration object.
Default: 'all'
Suggested values: 'all', 0, 1, 2
Pose (input_control) number-array → (real / integer)
Roughly estimated pose of the observed calibration object relative to the observing camera.
Number of elements: 7
Possible Predecessors
find_marks_and_pose,
set_calib_data_cam_param,
set_calib_data_calib_object
Possible Successors
set_calib_data,
calibrate_cameras
Alternatives
Module
Calibration