Back to Aurora Vision Library website
You are here: Start » Function Reference » Computer Vision » Camera Calibration » DetectCalibrationGrid_Circles_Deprecated
![](../../img/icon/DetectCallibrationGrid_Circles.png)
DetectCalibrationGrid_Circles_Deprecated
Header: | AVL.h |
---|---|
Namespace: | avl |
Module: | Calibration |
Detects an arbitrary size symmetric circle pattern on the image.
Applications: Camera calibration, image to world coordinates transformations.
Syntax
void avl::DetectCalibrationGrid_Circles_Deprecated ( const avl::Image& inImage, atl::Optional<const avl::Region&> inRoi, float inCircleRadius, float inWorldCircleSpacing, float inCircleDetectionThreshold, avl::Polarity::Type inCirclePolarity, atl::Array<avl::Point2D>& outImagePoints, atl::Array<avl::Point2D>& outWorldPlanePoints, avl::Region& diagCirclesRegion, atl::Array<avl::Point2D>& diagCircleCandidates )
Parameters
Name | Type | Range | Default | Description | |
---|---|---|---|---|---|
![]() |
inImage | const Image& | Input image | ||
![]() |
inRoi | Optional<const Region&> | NIL | Range of pixels to be processed | |
![]() |
inCircleRadius | float | 1.0 - ![]() |
Circle radius measured in input image pixels. | |
![]() |
inWorldCircleSpacing | float | 0.0 - ![]() |
1.0f | Real-world distance between adjacent circles centers. |
![]() |
inCircleDetectionThreshold | float | -![]() ![]() |
20.0f | Detection threshold (relative to local image patch). |
![]() |
inCirclePolarity | Polarity::Type | Any | Circle intensity with respect to background. | |
![]() |
outImagePoints | Array<Point2D>& | Image coordinates of detected calibration points. | ||
![]() |
outWorldPlanePoints | Array<Point2D>& | World plane coordinates of detected calibration points. | ||
![]() |
diagCirclesRegion | Region& | Image after thresholding, this is the circle detector input. | ||
![]() |
diagCircleCandidates | Array<Point2D>& | Detected circle centers, before the grid construction step. |