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中国图象图形学报 2011
Video images and DEM raster images matching in augmented reality systems
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Abstract:
A new approach of image matching is introduced for 3D registration of augmented reality system. First, mathematical morphology is used to extract the edge of video images. And the land surface visible portions of DEM are derived at the viewpoint based on GIS visibility analysis. Second, the local extremes in the corresponding contours are detected and their curvature sets are calculated, respectively. Third, the similarity of the corresponding curvature sets is calculated by comparing the similarity matrix.
