基于碎纸片拼接复原破碎文件的多种算法研究

A Research on Several Algorithms of Fragments Splice Recovery

破碎文件的拼接复原在很多领域都有应用。文章针对边缘信息较多的纵切碎纸片,在扫描图像作二值处理的基础上,建立起边缘差别最小化的点对点模型;对于边缘信息较少的纵横切碎片,建立起提升黑点贡献的赋权点对点模型和利用碎片内部信息的几何特征模型,并给出了英文定位线的提取方法以供找出同行碎片;为适应更复杂的双面打印碎片,对赋权点对点模型作了改进。

Splice recovery of broken file has been applied in lots of field. On the straight-cut iragments, thepaper established point-to-point model with minimized edge difference based on scanning image to conductbinary process. As for the straight-cut fragments with less edge information, author established empowermentpoint-to-point model which can improve dark spot contribution and the geometric feature model using frag-ments inside information, then presented extract method of position line to find peer fragments. In order toadapt to the more complex double-faced typewritten fragments, improvement of empowerment point-to-pointmodel has been made.