Acta Geodaetica et Cartographica Sinica ›› 2024, Vol. 53 ›› Issue (6): 1025-1036.doi: 10.11947/j.AGCS.2024.20230447

• Smart Surveying and Mapping • Previous Articles     Next Articles

The technology and intelligent development of 3D line cloud reconstruction from multiple images

Dong WEI(), Xinyi LIU(), Yongjun ZHANG   

  1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China
  • Received:2023-09-30 Published:2024-07-22
  • Contact: Xinyi LIU E-mail:weidong@whu.edu.cn;liuxy0319@whu.edu.cn
  • About author:WEI Dong (1992—), male, postdoctor, majors in 3D line cloud reconstruction and applied research. E-mail: weidong@whu.edu.cn
  • Supported by:
    The Youth Program of the National Natural Science Foundation of China(42301499);China National Postdoctoral Programme for Innovative Talents under Grant(Bx20220241)

Abstract:

As a collection of line segments, 3D line clouds shave distinct geometric structures and semantic information in each individual feature. They can serve as efficient guiding, controlling, and abstract representation elements in structured 3D reconstruction, compensating for the deficiencies in edge description and lack of initial structure in point clouds. These line clouds represent important structured features that can change the traditional “one-layer skin” 3D model (where different objects are mutually adherent, making spatial analysis and decision-making difficult). However, how to reconstruct useful line clouds from multi-view images and make effective use of them has always been a challenging problem in this field. This article reviews the development of 3D line clouds, introduces related reconstruction methods, and analyzes existing difficulties and shortcomings. Combining the background of transformation from digitization to intelligent surveying and mapping technology, it discusses the three questions of what to build, how to build, and how to use line clouds in real-world 3D scenarios. The article also introduces and prospects the intelligent development of line cloud reconstruction and application, hoping to provide a reference for researchers working on real 3D reconstruction and line clouds.

Key words: 3D line clouds, 3D realistic scene, 3D reconstruction, intelligent surveying and mapping, multiple images

CLC Number: