Start » Filter Reference » Computer Vision » Camera Calibration » FilterGridPoints
Module: | Calibration |
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Select a subset of the given points that forms a grid.
Name | Type | Range | Description | |
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inPoints | Point2DArray | ||
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inMaxAttempts | Integer* | 1 - ![]() |
Maximum number of attempts at finding the grid |
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inMaxOutlierCount | Integer* | 0 - ![]() |
Determines how many outlier points can be present to end the search |
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inMinLength | Real | 0.0 - ![]() |
Minimum length of a grid segment |
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inMaxLength | Real* | 0.0 - ![]() |
Maximum length of a grid segment, if set to Auto it will be approximated |
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inMaxLengthRatio | Real | 1.0 - 2.0 | Maximum ratio of two consecutive segments in the grid |
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inAngleRange | Real | 0.0 - 45.0 | Maximum variation of angles between neighbouring grid segments in degrees |
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inBaseAspectRatioRange | Real | 0.0 - 1.0 | Maximum variation of the base aspect ratio (ignores if base aspect ratio is not given) |
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inBaseAspectRatio | Real* | 0.3 - 1.0 | A reference aspect ratio of the grid |
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inBaseShear | Real* | 0.0 - 60.0 | A reference shear angle between grid directions that uses inMaxAngleRange as the maximum error range |
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inBaseOrientation | Real* | 0.0 - 360.0 | A reference orientation of one of the grids directions |
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outPointGrid | Point2DArray | Detected grid | |
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diagValidSubgraph | Segment2DArray | Graph forming a valid grid | |
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diagMaxLength | Real | Max length computed by the filter (applicable if inMaxLength is set to Auto) |
Description
This is a simplified version of AnnotateGridPoints_Ransac. See the documentation of that filter for more detail.
Complexity Level
This filter is available on Expert Complexity Level.
See Also
- AnnotateGridPoints_Ransac – Select a subset of the given points that forms a grid and assign 2D indices to them.