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Module: | Calibration |
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Detects an arbitrary size symmetric circle pattern on the image.
Applications
Camera calibration, image to world coordinates transformations.
Name | Type | Range | Description | |
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inImage | Image | Input image | ||
inRoi | Region* | Range of pixels to be processed | ||
inCircleRadius | Real | 1.0 - | Circle radius measured in input image pixels. | |
inWorldCircleSpacing | Real | 0.0 - | Real-world distance between adjacent circles centers. | |
inCircleDetectionThreshold | Real | - - | Detection threshold (relative to local image patch). | |
inCirclePolarity | Polarity | Circle intensity with respect to background. | ||
outImagePoints | Point2DArray | Image coordinates of detected calibration points. | ||
outWorldPlanePoints | Point2DArray | World plane coordinates of detected calibration points. | ||
diagCirclesRegion | Region | Image after thresholding, this is the circle detector input. | ||
diagCircleCandidates | Point2DArray | Detected circle centers, before the grid construction step. |
Complexity Level
This filter is available on Advanced Complexity Level.