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October 23, 2025Remote SensingOpen Access

Building Outline Extraction via Topology-Aware Loop Parsing and Parallel Constraint from Airborne LiDAR

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The proposed method achieved over 97.88% correctness in extracting building outlines, establishing a new benchmark.
Utilizing constrained Delaunay triangulation, the method organizes point cloud data to streamline building outline extraction.
Technology incorporates topology-aware loops and parallel constraints to optimize the accuracy of boundary point extraction.
These techniques highlight the potential for enhanced 3D reconstruction precision and efficient data extraction in urban environments.

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Proposed method demonstrates improved data extraction and line segment accuracy in point cloud data for 3D reconstruction.

Liu et al. (2025) studied this question.

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