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| - | ====== Preferences of Roadmark Detection ===== | ||
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| - | This page describes only the parameters and preferences of Roadmark Detector. \\ | ||
| - | Full documentation about semi-automatic detectors, see [[dev: | ||
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| - | {{orbitgis: | ||
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| - | ===== Concepts ===== | ||
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| - | ===== Algorithm ===== | ||
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| - | ==== Search Margin ==== | ||
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| - | The horizontal margin to search for the next segment. | ||
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| - | ==== Mark Width Max ==== | ||
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| - | The maximum width of a mark. | ||
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| - | ==== Mark Width Min ==== | ||
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| - | The minimum width of a mark. | ||
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| - | ==== Segment Sections Length ==== | ||
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| - | A segment of the road MARK(?)is detected by detecting multiple adjacent small sections. | ||
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| - | ==== Segm Section Ground Margin ==== | ||
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| - | Ground margin for segments sections of line. | ||
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| - | ==== Segment Section Side Step ==== | ||
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| - | The position of a small section is projected from the previous, then moved sideways by this side step. | ||
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| - | ==== Reflectivity Threshold ==== | ||
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| - | The reflectivity threshold to get a new segment is a percentage of the average intensity of last segment points. | ||
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| - | ==== Dashed Lines ==== | ||
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| - | === High Reflective Pts Percentage === | ||
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| - | Use this percentage of higher reflectivities to calculate next reflectivity threshold. eg. next threshold is the average intensity of 10% higher intense point multiplied by intensity threshold parameter. | ||
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| - | === Consecutive Segs Null Max === | ||
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| - | Maximum number of consecutive null segments. | ||
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| - | === PC Pixel Size === | ||
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| - | Increase pixel size to reduce number of point cloud points used. | ||
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| - | ==== Solid Lines: Gap Distance Max ==== | ||
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| - | The length of the maximum gap on a solid road mark. | ||
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| - | ====== Output ====== | ||
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| - | ==== Feature Lengt Max ==== | ||
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| - | The maximum length for a feature. Detection continues as far as possible if this value is zero. | ||
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| - | ==== Final line Distance Points ==== | ||
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| - | Distance between the points on the final line | ||
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| - | ==== Dashed Lines: Resturn Dashed Line Segments ==== | ||
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| - | Should a dashed line be segmented into its units? | ||
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