利用曲率特征虚拟拼接青铜器小碎片的方法

发布时间：2018-03-20 19:09

本文选题：青铜器　切入点：图像碎片　出处：《西安电子科技大学学报》2016年06期 　论文类型：期刊论文

【摘要】：针对青铜器小碎片人工拼接复原耗时费力的问题,提出了一种基于曲率特征的青铜器小碎片虚拟拼接方法.首先分别提取青铜器小碎片的轮廓,并在平滑处理提取结果的基础上计算轮廓的曲率.其次以曲率的局部极大值点作候选角点,再根据支撑域消除圆角点和伪角点.然后计算相邻两角点间的弦长,以弦长作为特征序列进行匹配.最后在平移旋转过程中利用向量模的不变性进行匹配精化处理,得到青铜器小碎片的最终拼接结果.实验结果表明,该方法能够有效地提高拼接效率和匹配效果.
[Abstract]:Aiming at the time-consuming problem of manual splicing and restoration of small pieces of bronze, a method of virtual splicing of small pieces of bronze based on curvature characteristics is proposed. Firstly, the contours of small fragments of bronze are extracted separately. The curvature of the contour is calculated on the basis of the result of smoothing processing. Secondly, the local maximum of curvature is used as the candidate corner point, then the circular corner and pseudo-corner are eliminated according to the support region, and the chord length between the adjacent two corners is calculated. The string length is used as the feature sequence to match. Finally, the invariance of vector mode is used to refine the matching in the process of translation and rotation, and the final splicing results of small pieces of bronze ware are obtained. The experimental results show that, This method can effectively improve the efficiency of stitching and matching effect.
【作者单位】：中北大学计算机与控制工程学院;山西博物院文物保护中心;
【基金】：山西省自然科学基金资助项目(2013011017-4) 山西省重点研发计划(指南)资助项目(201603D321128) 山西省研究生教育创新资助项目(2016SY051)
【分类号】：K876.41;TP391.41

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