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DetectCalibrationGrid_Circles_Deprecated


Header: FIL.h
Namespace: fil
Module: Calibration

Detects an arbitrary size symmetric circle pattern on the image.

Applications: Camera calibration, image to world coordinates transformations.

Syntax

void fil::DetectCalibrationGrid_Circles_Deprecated
(
	const fil::Image& inImage,
	ftl::Optional<const fil::Region&> inRoi,
	float inCircleRadius,
	float inWorldCircleSpacing,
	float inCircleDetectionThreshold,
	fil::Polarity::Type inCirclePolarity,
	ftl::Array<fil::Point2D>& outImagePoints,
	ftl::Array<fil::Point2D>& outWorldPlanePoints,
	fil::Region& diagCirclesRegion,
	ftl::Array<fil::Point2D>& diagCircleCandidates
)

Parameters

Name Type Range Default Description
Input value inImage const Image& Input image
Input value inRoi Optional<const Region&> NIL Range of pixels to be processed
Input value inCircleRadius float 1.0 - Circle radius measured in input image pixels.
Input value inWorldCircleSpacing float 0.0 - 1.0f Real-world distance between adjacent circles centers.
Input value inCircleDetectionThreshold float - - 20.0f Detection threshold (relative to local image patch).
Input value inCirclePolarity Polarity::Type Any Circle intensity with respect to background.
Output value outImagePoints Array<Point2D>& Image coordinates of detected calibration points.
Output value outWorldPlanePoints Array<Point2D>& World plane coordinates of detected calibration points.
Diagnostic input diagCirclesRegion Region& Image after thresholding, this is the circle detector input.
Diagnostic input diagCircleCandidates Array<Point2D>& Detected circle centers, before the grid construction step.