城市建筑立面三维“线-面”结构快速重建  

Rapidly Reconstructing 3D Line-Plane Structures of Urban Building Facades

作　　者：王伟 于磊 任国恒 陈立勇 董秋雷[2] 胡占义[2] WANG Wei;YU Lei;REN Guo-heng;CHEN Li-yong;DONG Qiu-lei;HU Zhan-yi(School of Network Engineering,Zhoukou Normal University,Zhoukou,Henan 466001,China;Institute of Automation,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]周口师范学院网络工程学院,河南周口466001 [2]中国科学院自动化研究所,北京100190

出　　处：《电子学报》2021年第8期1551-1560,共10页Acta Electronica Sinica

基　　金：国家自然科学基金(No.61991423,No.U1805264);河南省科技攻关项目(No.202102310235)。

摘　　要：本文提出一种有效的基于线段匹配与结构先验的城市建筑立面三维“线-面”结构快速重建算法.本文算法利用在当前图像中检测的初始线段将图像分割为互不重叠的区域,然后在点-线约束空间内对每个区域的竖直边进行匹配并通过全局多平面拟合的方式获取建筑初始主平面;在此基础上,利用结构先验(如共线、共面等)对图像中潜在线段匹配(或空间线段)进行推断与优化,进而获取每个区域对应的空间平面.实验结果表明,本文算法仅利用两幅图像即可重建以“线-面”形式表达的城市建筑立面完整结构,整体上具有较高的效率与精度.The paper presents an effective method to model building facades based on line segment matching and structure priors.The proposed method splits the image into several non-overlapping regions using the lines detected in the image,and then performs a rapid matching for the vertical edges of each region within a highly restrained point-line space and extracts dominant building planes using a global multi-plane fitting method.Based on the resulting planes,it further infers and optimizes potential line segment matches(or spatial lines)using structure priors(e.g.,collinearity and coplanarity)to obtain the plane associated with each region.Experimental results confirm that the proposed method can reconstruct satisfactory line-plane building facade structures from only two images,and has high accuracy and efficiency on the whole.

关 键 词：线段匹配 城市建模 平面拟合 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]