A Method for Linking Pairs of Compatible Linear Features

摘要

A method of linking compatible straight edges is presented and discussed. The linking is based on information about the geometrical configurations of the edges, the similarity of the gray levels on their object sides, and the similarity of their object sides with the line joining their endpoints. Three figures of merit are defined for evaluating pairs of segments for possible linking. Examples are shown of applying the method to high resolution aerial photographs. Results indicate that cultural features such as roads and buildings can be extracted and that a significant reduction in the complexity of the image description can be obtained. This approach should be especially useful for defining the degrees of compatibility of pairs of edges in a relaxation scheme for classifying linear feature segments. (Author)