Surface deformation information extraction method based on point cloud data

• Main Authors: SUI MINGMING, CHEN JIAN, SHI XIAOYUN
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention provides a surface deformation information extraction method based on point cloud data. In order to overcome the defects of an existing method for extracting deformation information based on point cloud data, deformation information between surfaces is extracted through curved surface matching operation, the characteristic of high spatial resolution of the point cloud is fully utilized, the extracted deformation information not only comprises three-dimensional displacement deformation, but also comprises torsional deformation of the surfaces, and a new thought and technical reference are provided for extracting the deformation information based on point cloud data. 本发明提供了一种基于点云数据的面变形信息提取方法，本发明针对现有的基于点云数据提取变形信息方法的不足，提出采用曲面匹配运算来提取"面"与"面"之间的变形信息，所采用方法充分利用了点云高空间分辨率的特性，而且提取的变形信息不仅包含三维位移变形，还包括"面"的扭转变形，为基于点云数据提取变形信息提供了新的思路和技术参考。