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DetectCalibrationGrid_CircleBoard

Detects a fixed-size symmetric circle calibration pattern on the image.

	Name	Type	Range	Description
	inImage	Image		Input image
	inBoardSize	Size		Number of circles in X and Y dimensions.
	inWorldCircleSpacing	Real	0.0 -	Real-world distance between adjacent circles centers.
	inFastApproximate	Bool		Fast filter execution, but result is approximate.
	outImagePoints	Point2D Array ?		Image coordinates of detected calibration points.
	outWorldPlanePoints	Point2D Array ?		World plane coordinates of detected calibration points.

Applications

Camera calibration, image to world coordinates transformations.

Examples

Input image for DetectCalibrationGrid_CircleBoard executed with inBoardSize = {12,8}

Detected calibration points

Errors

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type	Description
DomainError	Input image is too small
DomainError	Input image must have pixels of UInt8 type

Complexity Level

This filter is available on Basic Complexity Level.

Filter Group

This filter is member of DetectCalibrationGrid filter group.

See Also

DetectCalibrationGrid_Chessboard – Detects a chessboard calibration grid on the image, and returns calibration points where 4 chessboard squares meet.

DetectCalibrationGrid_Circles – Detects an arbitrary size symmetric circle pattern on the image.