US 12,444,134 B2
Dynamic visualization method and device for earthquake disasters
Tong Guo, Jiangsu (CN); Shuqi Yu, Jiangsu (CN); and Minte Zhang, Jiangsu (CN)
Assigned to Southeast University, Jiangsu (CN)
Appl. No. 18/716,939
Filed by Southeast University, Jiangsu (CN)
PCT Filed Jul. 11, 2023, PCT No. PCT/CN2023/106707
§ 371(c)(1), (2) Date Jun. 6, 2024,
PCT Pub. No. WO2024/098822, PCT Pub. Date May 16, 2024.
Claims priority of application No. 202211413736.2 (CN), filed on Nov. 11, 2022.
Prior Publication US 2025/0037370 A1, Jan. 30, 2025
Int. Cl. G06T 17/05 (2011.01); G06T 7/11 (2017.01); G06T 7/73 (2017.01); G06T 19/20 (2011.01)
CPC G06T 17/05 (2013.01) [G06T 7/11 (2017.01); G06T 7/73 (2017.01); G06T 19/20 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/30184 (2013.01); G06T 2210/56 (2013.01); G06T 2219/2012 (2013.01); G06T 2219/2016 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A dynamic visualization method for earthquake disasters, comprising
acquiring initial point cloud data of a plurality of buildings and a plurality of scenes in a target area;
acquiring shake displacement data varying with time of the buildings, wherein the shake displacement data is obtained by simulating an earthquake excitation on the buildings and the scenes;
performing voxel downsampling and point cloud segmentation and extraction on the initial point cloud data to determine a ground point cloud and a point cloud corresponding to each of the buildings;
updating in real time coordinates of each point of the point cloud corresponding to each of the buildings at the present time according to the shake displacement data varying with time of the buildings; and
rendering in real time the ground point cloud and the coordinates of each point of the point cloud corresponding to each of the buildings at the present time to generate a dynamic visual image for displaying.