Unmanned aerial vehicle slope vegetation classification method based on equal-height air route

Abstract

The invention discloses an unmanned aerial vehicle slope vegetation classification method based on an equal-height air route. The method comprises the following steps that (1) an unmanned aerial vehicle flies along a plurality of equal-height air routes in a snakelike mode and hovers on sampling points on the equal-height air routes to collect images, the distances between the equal-height air routes and the ground of a side slope are equal, the equal-height air routes are evenly arranged side by side in the inclination direction of the side slope at intervals, and the air routes are evenly provided with the sampling points; (2) the image is synthesized into high-density point cloud data by using Pix4DMapper, and an orthographic image is obtained from the high-density point cloud data; (3)a sample manager is constructed, which comprises the steps of firstly, adding the artificially distinguished plant species into ArcGIS to generate a scheme management category; then, according to thescheme management category, circling a to-be-classified object category in the near-earth orthographic image to obtain a sample library; (4) an ecd file generated by the sample training manager basedon the scheme management category and the sample library is combined with a classification method to act on the orthoimage, and a classification result of the slope plant image is obtained; the method improves the classification precision.

Description

technical field [0001] The invention relates to a method for classifying slope vegetation of a UAV based on a contour route. The method for classifying vegetation of a UAV slope is based on the flight of the UAV on a slope and obtaining clear images. Background technique [0002] Slope ecological engineering includes six main links: planning and design, project construction, project supervision, project acceptance, project management and engineering research, among which the development of the four links of project supervision, project acceptance, project management and project research needs to focus Spatial distribution, whether it is the process and quality in project supervision, or the stability assessment in project acceptance, to the maintenance, replanting, thinning and growth management in project management, or the spatial pattern of groups in engineering research, Biodiversity succession, ecological evaluation, etc., all require dynamic and high-frequency plant sp...

AI Technical Summary

Problems solved by technology

However, the complex terrain of the slope affects the flight mode of the UAV and the data quality and information mining. The plant layer of the slope is rich and the height is matched, which makes the classification of plants difficult. At present, there is no UAV to investigate plant species under the condition of the slope. Research reports, there is no ready-made research method for reference, so the research of the present invention will be a kind of innovative attempt

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