Laser scanning image abnormity processing method based on standard profile constraint
The invention provides a laser scanning image abnormity processing method based on standard profile constraint. The method comprises the following steps: acquiring track laser scanning image data; dividing the track laser scanning image data into a plurality of image data segments; deleting image da...
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| creator | WANG HAIJUN GUO YUSHENG ZHUANG GUANGCHEN WANG DAYUAN PEI XINKAI |
| description | The invention provides a laser scanning image abnormity processing method based on standard profile constraint. The method comprises the following steps: acquiring track laser scanning image data; dividing the track laser scanning image data into a plurality of image data segments; deleting image data segments with few points; splicing the plurality of processed image data segments; judging concavity and convexity of the plurality of spliced image data segments; calculating to obtain a rotation amount and a translation amount; translating and rotating the rail head curve and the rail bottom curve according to the rotation amount and the translation amount; and comparing the translated and rotated rail head curve and rail bottom curve with the standard rail profile image point cloud respectively, calculating the Hausdorff distance of each data point in sequence, and if the Hausdorff distance of any data point is greater than a first set distance threshold, judging that any data point is an outlier and deleting |
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| language | chi ; eng |
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| subjects | CALCULATING COMPUTING COUNTING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS |
| title | Laser scanning image abnormity processing method based on standard profile constraint |
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