利用层次骨架线进行中大比例尺居民地形状相似性评价  

Shape Similarity Evaluation of Medium and Large Scale Residential Area Using Hierarchical Skeleton Lines

作　　者：任政广 钱海忠[1] 王骁[1] 赵钰哲 陈国庆 陈月 REN Zhengguang;QIAN Haizhong;WANG Xiao;ZHAO Yuzhe;CHEN Guoqing;CHEN Yue(Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学,河南郑州450001

出　　处：《测绘科学技术学报》2025年第1期104-110,共7页Journal of Geomatics Science and Technology

基　　金：国家自然科学基金项目(41571442);军队“双重”建设项目(f4203);河南省杰出青年科学基金项目(212300410014)。

摘　　要：针对当前大部分居民地形状相似性度量方法不能兼顾居民地整体特征和局部差异的局限,提出一种基于层次骨架线的居民地形状相似性评价方法。该方法以降维为基本思想,能充分考虑待度量居民地的主体特征和细节差异。先以象征性和形态概括性这两个特点为依据,以某区域OSM(Open Street Map)矢量面数据为例,构建一批分别对应于3个不同构型待度量居民地目标的模板;再分别对目标和模板提取层次骨架线并建立骨架线缓冲区,进一步依据骨架线的层次特性来计算二者的主体相似度、细节相似度和综合相似度。实验结果表明,该方法能对来自不同中大比例尺地图的构型相同或接近、面积差异较大的待度量居民地和模板同时进行层次和整体相似性度量。Aiming at the limitation that the overall characteristics of residential areas and the local differences cannot be taken into account in most of the current residential area shape similarity measurement methods,a method for evaluating residential area shape similarity based on hierarchical skeleton lines is proposed in this paper.The main characteristics and detail differences of the residential areas to be measured are fully considered in the method whose basic idea is dimensionality reduction.First,based on the two characteristics of symbolism and morphological generalization,the OSM(Open Street Map)vector surface data of a certain area is taken as an example to build a batch of templates corresponding to three different configurations of the residential areas to be measured.Then,the hierarchical skeleton lines are extracted from the targets and the templates respectively,and the buffers of the skeleton lines are established.Further,the subject similarity,the detail similarity and the comprehensive similarity are calculated according to the hierarchical characteristics of the skeleton lines.The experimental results show that both hierarchical and global similarity for the resident areas and templates from different medium and large-scale maps with the same or similar configuration and large area difference can be measured concurrently using the proposed method.

关 键 词：居民地 层次骨架线 降维 形状相似度 化简 

分 类 号：P208[天文地球—地图制图学与地理信息工程]