Line feature-based matching between imagery and vector map

Abstract:

By matching the image to vector map, the vector data is the reference. Thereinto, some vector of ground object are edge line and others are center line. It is necessary to keep the consistency between the result of image line-feature extraction and vector data. Here two kinds of detection algorithm are put forward. The first one is based on symmetric wavelet and applied to extract the edge line in the image. The second one aims at detecting the center line of the ground object from image through OTSU segment and morphologic processing. which are the basis of matching between imagery and vector map. Since the line moment is suitable for expressing vector data, we have studied one matching method with three rotation-invariant moment parameters. This method brings more effective and better matching results.