Gully volume change slicing method based on terrain point cloud

• Main Authors: HAO MINGKUI, YAN LU, ZHANG SHUHUA, HU JINFEI, LI WEIGUANG, GAO CHENDI, LI DOU, LI PENGFEI, YANG XIN
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; GYROSCOPIC INSTRUMENTS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING DISTANCES, LEVELS OR BEARINGS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention discloses a gully volume change slicing method based on terrain point cloud. The method comprises the following steps: 1, acquiring point cloud of a gully area to be measured; 2, slicing the point cloud of the gully area to be measured; 3, clustering and interpolation processing of the point cloud slices of the gully area to be measured; 4, acquiring the section change area of the point cloud slice in the later period relative to the point cloud slice in the previous period; and 5, obtaining the volume variation of the gully area to be measured. The method is simple in steps and reasonable in design, the volume variation of each point cloud slice of the to-be-measured gully area in the elevation direction is obtained, the overall volume variation of the to-be-measured gully area is obtained through accumulation, and the accuracy of gully volume variation calculation is improved so as to adapt to the gully terrain. 本发明公开了一种基于地形点云的沟壑体积变化切片方法，该方法包括以下步骤：一、待测沟壑区域的点云获取；二、待测沟壑区域的点云的切片；三、待测沟壑区域的点云切片的聚类及