关键词: 青铜器, 图像碎片, 拼接, 轮廓匹配, 角点检测

Abstract:

For the time-consuming problem of manual stitching small bronze fragments,an approach for virtual small bronze fragments reassembly based on curvature feature is proposed. First, we extract and smooth the 2d contour of the small bronze fragment, and then compute the curvature of each point on the contour and regard the local maxima of the curvature as the candidate corners. After that, the round corners and false corners are eliminated according to the support region. And then the chord lengths between the adjacent corners are calculated as the feature sequences to find the match. Finally, the reassembled result is obtained and refined by applying the invariance of the vector module. Experimental result proves that the method can effectively improve the efficiency of stitching and the effect of matching.

Key words: bronze, image fragments, stitching, contour match, corner detection