Delaunay Canopy：通过Delaunay图构建空中LiDAR点云的线框重建
Delaunay Canopy: Building Wireframe Reconstruction from Airborne LiDAR Point Clouds via Delaunay Graph
AI总结：
本文提出Delaunay Canopy方法，利用Delaunay图作为几何先验，解决空中LiDAR点云中噪声、稀疏性和内部角区域线框重建的难题，实现高精度线框重建。
摘要：
本文提出Delaunay Canopy方法，利用Delaunay图作为几何先验，解决空中LiDAR点云中噪声、稀疏性和内部角区域线框重建的难题，实现高精度线框重建。
英文摘要：
Reconstructing building wireframe from airborne LiDAR point clouds yields a compact, topology-centric representation that enables structural understanding beyond dense meshes. Yet a key limitation persists: conventional methods have failed to achieve accurate wireframe reconstruction in regions afflicted by significant noise, sparsity, or internal corners. This failure stems from the inability to establish an adaptive search space to effectively leverage the rich 3D geometry of large, sparse building point clouds. In this work, we address this challenge with Delaunay Canopy, which utilizes the Delaunay graph as a geometric prior to define a geometrically adaptive search space. Central to our approach is Delaunay Graph Scoring, which not only reconstructs the underlying geometric manifold but also yields region-wise curvature signatures to robustly guide the reconstruction. Built on this foundation, our corner and wire selection modules leverage the Delaunay-induced prior to focus on highly probable elements, thereby shaping the search space and enabling accurate prediction even in previously intractable regions. Extensive experiments on the Building3D Tallinn city and entry-level datasets demonstrate state-of-the-art wireframe reconstruction, delivering accurate predictions across diverse and complex building geometries.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
