关于碎纸机中碎纸片拼接复原的研究

碎纸片的拼接复原在司法鉴定,历史研究等众多领域中都具有极其重要的作用。针对条状和粒状碎纸机碎纸的拼接复原问题进行分析、建模,讨论单面及双面打印碎纸片复原的情况。用扫描技术提取出碎纸片的像素矩阵,将图像信息转化为数字信息,并将取出的像素矩阵转化为0-1矩阵,对碎纸片边界进行分析、分类、匹配。其中,根据矩阵之间的相关程度进行聚类,边界的匹配程度以欧式距离加以度量。另外,0-1矩阵的使用减少了计算量,提高了匹配准确性和匹配效率。

The research on the reversion of paper fragments which are in paper shredder

The reversion of paper fragments plays an important role in forensic identification, historical research and other fields. We present reversion models on this question and discuss two cases of the reversion of paper fragments, single-sided print and double-face print. We use scan technique to pick up pixel matrices and translate image information into figure information. We translate these matrices into 0-1 matrices , then analyse and match the boundary of paper fragments. According to the degree of correlation between pixel matrices and cluster analysis, we classify these matrices. Also, we use Euclid Distance to measure the degree of matching. Besides, the usage of 0-1 matrices decreases the amount of calculation and increase the efficiency of matching.