期刊论文

Ma, HC

英文

Automation in Construction

0926-5805

2024

160

105321

10.1016/j.autcon.2024.105321

CRediT authorship contribution statement Ke Liu: Conceptualization, Data curation, Formal analysis, acquisition, Investigation, Methodology, Validation, Writing – original draft. Hongchao Ma: Conceptualization, acquisition, Software, Supervision, Writing – review & editing. Liang Zhang: Data curation, Formal analysis, Software. Lu Gao: Data curation, Validation. Shitao Xiang: Data curation, Validation. Dachang Chen: Data curation, Validation. Qing Miao: Data curation, Validation.

本校为第一机构

It is challenging to extract satisfactory building outlines from LiDAR data due to the unorganized point cloud and complex building shapes. To solve the issues, a method using adaptive tracing alpha shapes (ATAS) and contextual topological optimization is proposed. First, the ATAS method is used to extract sequential boundary points. After that, a method based on point cloud distribution analysis is developed to obtain building dominant directions and line segments of outlines. Finally, regularized outlines are obtained by adjusting all line segments simultaneously under the framework of globa...