US 12,437,475 B1
Method and device for quantitatively characterizing development positions of geological disasters in slopes, and electronic device
Yongchao Li, Beijing (CN); Shishu Zhang, Chengdu (CN); Shengwen Qi, Beijing (CN); Yu Zou, Beijing (CN); Songfeng Guo, Beijing (CN); Bowen Zheng, Beijing (CN); Chunling Liu, Beijing (CN); Xinyi Guo, Beijing (CN); Fengjiao Tang, Feicheng (CN); Xiao Lu, Linyi (CN); Xiaokun Hou, Beijing (CN); Zan Wang, Beijing (CN); Jianing Cong, Dalian (CN); Yue Yang, Jiaozuo (CN); Wei Cheng, Kunming (CN); Huyue Zhan, Diqing (CN); Yonghua Yu, Beijing (CN); and Naiwu He, Beijing (CN)
Assigned to Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing (CN)
Filed by Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing (CN)
Filed on Jun. 12, 2025, as Appl. No. 19/236,962.
Claims priority of application No. 202510152481.6 (CN), filed on Feb. 12, 2025.
Int. Cl. G06T 17/05 (2011.01)
CPC G06T 17/05 (2013.01) 9 Claims
OG exemplary drawing
 
1. A method for quantitatively characterizing development positions of geological disasters in slopes, the method comprising:
acquiring a slope boundary of a target slope, and constructing a triangle matched with the slope boundary, wherein three vertices of the triangle are A, B, and C, respectively;
acquiring, based on the triangle, slope terrain points within a range of the triangle;
assigning preset attribute information to each slope terrain point Di of the slope terrain points, wherein the preset attribute information of each slope terrain point Di at least comprises an angle attribute of each slope terrain point Di and a distance ratio attribute of each slope terrain point Di; the angle attribute of each slope terrain point Di is a target angle value calculated based on an initial angle value of ∠BADi, and the vertex A is a vertex of the target slope; the distance ratio attribute of each slope terrain point Di is a distance ratio calculated based on the angle attribute of each slope terrain point Di and a distance between each slope terrain point Di and the vertex A; and
screening out disaster points from the slope terrain points, and plotting and displaying, based on angle attributes and distance ratio attributes of the disaster points, the disaster points in a preset area in a polar coordinate system;
wherein a process for calculating the distance ratio attribute of each slope terrain point Di based on the angle attribute of each slope terrain point Di and the distance between each slope terrain point Di and the vertex A comprises:
classifying the slope terrain points into multiple angle classes based on the angle attribute of each slope terrain point Di and a preset angle interval;
for each slope terrain point Di in each angle class of the multiple angle classes, calculating a distance Li between each slope terrain point Di in the angle class and the vertex A, and determining a maximum distance Lmax among the distance Li between each slope terrain point Di in the angle class and the vertex A; and
for each slope terrain point Di in each angle class of the multiple angle classes, determining a ratio β of the distance Li between each slope terrain point Di in the angle class and the vertex A to the maximum distance Lmax as the distance ratio attribute of each slope terrain point Di.