城市建模中的多视角纹理映射技术  

A Multi- view Texture Mapping Technology in Urban Modeling

作　　者：卢学良[1,2] 巩丹超[1,2] 曹华振 

机构地区：[1]西安测绘研究所,陕西西安710054 [2]地理信息工程国家重点实验室,陕西西安710054 [3]第三测绘导航基地,新疆乌鲁木齐830002

出　　处：《测绘科学与工程》2016年第3期29-35,共7页Geomatics Science and Engineering

摘　　要：倾斜式多视角摄影及其数据处理方法的出现，使得城市建模的手段变得更加丰富，而多视角影像的纹理映射是其关键技术之一，值得深入研究。本文首先对现有城市三维建模中多视角影像纹理映射的方法进行了简要介绍；然后根据倾斜航空摄影测量的技术特点，对传统方法的不适应性进行了深入分析，调整了相关纹理映射的策略，改进了其中最优化纹理选择中的可见性准则和邻接一致性准则，提出了拼接缝约束的优化策略。相关实验表明，调整后的策略在城市建模的多视角纹理映射中具有正确性和有效性。The emergence of multi - view oblique photography and data processing methods provide more solutions for urban modeling, and the texture mapping of multi - view imagery is one of the key technologies worth further study. The existing multi - view image texture mapping methods in three - dimensional modeling of urban area are briefly introduced and the inadaptability of the original method is further analyzed according to the technical characteristics of oblique aerial photogrammetry. The relevant texture mapping strategy is adjusted to improve the visibility guidelines and adjacent consistency rules of texture selection, and an optimized strategy of seam - line constraint is put forward. Experiment results show that the improved strategy is accurate and effective in multi - view texture mapping in urban modeling.

关 键 词：倾斜摄影 数据处理 城市建模 纹理映射 多视角影像 

分 类 号：P231[天文地球—摄影测量与遥感]