基于机载LiDAR的城市实景三维模型构建

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中图分类号：P258 文献标志码：A 文章编号:1003-5168（2025)16-0106-04

DOI:10.19968/j.cnki.hnkj.1003-5168.2025.16.021

Construction ofUrbanRealistic 3DModel Based on AirborneLiDAR

WU Lifang (Nanchang Research Institute of Surveying and Mapping Survey Co.Ltd., Nanchang 33oooo,China)

Abstract:[Purposes] To address the issue that conventional urban real-scene 3D models are prone to high deviations from reality due to laser point discrimination angle errors,this study proposes a 3D urban real-scene model based on the integration of airborne LiDAR and low altitudeobliquephotography. [Methods] Multi-view images were extracted using airborne LiDAR and low-altitude oblique photography to optimize the boundary contours of the urban real-scene 3D model,thereby completing its construction. [Findings] The proposed 3D real-scene modeling method achieved excellnt scores across all segmented regions,indicating that the model exhibits higher visual consistency and fidelity to reality. [Conclusions] The proposed method demonstrates low MNE,robust model performance,reliability,and practical applicability,providing technical support for advancing urban digital construction.

Keywords: airborne LiDAR; low-altitude oblique photography; urban real-scene; 3D;model construction

0 引言

社会化数字转型推动了城市信息化建设发展，各类三维模型应运而生，为城市实景建设提供决策支持[1]。（剩余5694字）