结合不规则直线段描述符与几何约束的直线段匹配算法  

Line Segment Matching Algorithm Combining Irregular Line Segment Descriptors with Geometric Constraints

作　　者：汪玉成 张宁 WANG Yucheng;ZHANG Ning(Liu’an Spatial Data Application Co.,Ltd.,Liu’an 237000,China)

机构地区：[1]六安市空间数据应用有限公司,安徽六安237000

出　　处：《地理空间信息》2025年第3期9-12,17,共5页Geospatial Information

摘　　要：针对传统直线匹配方法易漏选、匹配无力和部分直线描述符特异性较差等问题,提出了一种结合不规则直线描述符与几何约束的直线段匹配算法。通过网络公开数据集中4种不同影像变换类型数据对该算法进行验证,并与其他算法进行了对比分析。结果表明,相较于对比算法,该算法的平均正确率分别提高了27.5%、14.2%和1.2%,平均正确匹配数目分别增加了247、290和182个,充分体现了算法的有效性与准确性。In response to the problems of traditional line matching methods such as easy omission,weak matching,and poor specificity of some line descriptors,we proposed a line segment matching algorithm combining irregular line segment descriptors with geometric constraints.We used the data of four different image transformation types in the open network data set to verify this algorithm,and compared it with other algorithms.The results show that the average correct rate of algorithm is improved by 27.5%,14.2%and 1.2%respectively,and the average numbers of correct matches are increased by 247,290 and 182 respectively,effectively illustrating the effectiveness and accuracy of this algorithm.

关 键 词：近景影像 极线约束 三角网约束 直线段描述符 透视变换 

分 类 号：P231[天文地球—摄影测量与遥感]