基于无人机倾斜摄影测量技术的三维模型空洞修补算法研究  

Research on Void Repair Algorithm of 3D Model Based onTilt Photogrammetry Technology of UAV

作　　者：郑方亮 Zheng Fangliang(Shandong Zhibang Land Real Estate Evaluation Surveying and Mapping Co.,LTD.,Dezhou 253000,China)

机构地区：[1]山东智邦土地房地产评估测绘有限公司,山东德州253000

出　　处：《黑龙江科学》2025年第8期42-44,48,共4页Heilongjiang Science

摘　　要：无人机倾斜摄影测量是大规模地形建模的主要方法,由于拍摄角度和光照的限制,三维模型中往往会出现空洞。结合倾斜摄影测量的特点,提出一种针对三维模型空洞修补的算法。该算法对空洞进行详细分类,根据分区单元之间的邻接计算空洞间的层次关系,通过拓扑闭合和高度投影变换从外层向内层传播修补空洞,基于拉普拉斯算法,对相邻空洞的公共边界进行平滑处理。开展实验验证,结果表明,本算法能够有效提升三维模型的完整性和视觉质量。UAV tilt photogrammetry is the main method of large-scale terrain modeling.Due to the limitation of shooting angle and illumination,voids often appear in 3D model.Based on the characteristics of tilt photogrammetry,the study proposes an algorithm for void repair in 3D model.The algorithm classifies the voids in detail,computes the hierarchical relationship between voids according to the adjacency between partition elements,propagates the voids from outer layer to inner layer through topological closure and height projection transformation,and smooths the common boundary of adjacent voids based on Laplace algorithm.Experimental results show that the proposed algorithm can effectively improve the integrity and visual quality of 3D models.

关 键 词：无人机倾斜摄影 空洞修补算法 三维模型 公共边界 高度投影变换 

分 类 号：P231[天文地球—摄影测量与遥感]