High-precision target extraction method and system based on point cloud data of unmanned aerial vehicle

Abstract

The embodiment of the invention provides a high-precision target extraction method and system based on point cloud data of an unmanned aerial vehicle, and the method comprises the steps: detecting structural traffic elements in a to-be-detected image through a target detection model, obtaining a rectangular bounding box of the structural traffic elements, and detecting non-structural traffic elements through a deep learning segmentation model to obtain a target contour point of the non-structural traffic element; then, calculating depth information of the rectangular bounding box and the target contour point through a point cloud data processing method, and obtaining three-dimensional coordinate information of the rectangular bounding box and the target contour point; the geometric contourinformation of the traffic elements can be automatically extracted based on the unmanned aerial vehicle point cloud data so that the time of manually extracting the traffic elements can be reduced, the extraction efficiency of the traffic elements can be enhanced and enhancement of the manufacturing efficiency of the high-precision map can be facilitated.

Description

technical field [0001] The invention relates to the field of high-precision map production and generation, in particular to a high-precision target extraction method and system based on UAV point cloud data. Background technique [0002] High-precision maps, generally speaking, are electronic maps with higher precision and more data dimensions. The higher accuracy is reflected in the accuracy to the centimeter level, and the data dimension is more reflected in the fact that it includes surrounding static information related to traffic in addition to road information. High-precision maps store a large amount of driving assistance information as structured data, such as fixed object information around the lane, such as traffic signs, traffic lights and other indication information. [0003] In recent years, with the rapid development of UAV technology, the application of UAVs in various industries has sprung up like mushrooms after rain. In the field of surveying and mapping...

AI Technical Summary

Problems solved by technology

However, during the actual vehicle collection process of the surveying and mapping vehicle, some areas cannot be driven, and the efficiency of manual extraction of traffic elements is low

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