The Road Data Change Detection Based on Linear Shape Similarity

Similarity is a psychological cognition,this paper defines the different distance and puts forward the similarity measuring model for linear spatial data(SMM-L)based on the integration of the distance view and the feature set view which are the views for similarity cognition.After the study of the relationship between the spatial data change and the similarity,a spatial data change detection algorithm for linear spatial data is developed,and a test for road data change detection is realized.