Shape similarity measures of linear entities
Zhang Qiaoping, LI Deren, Gong Jianya · Geo-spatial Information Science · 2002
The essential of feature matching technology lies in how to measure the similarity of spatial entities. Among all the possible similarity measures, the shape similarity measure is one of the most important measures because it is easy to collect the necessary parameters and it is also well matched with the human intuition. In this paper a new shape similarity measure of linear entities based on the differences of direction change along each line is presented and its effectiveness is illustrated.