The Registration Method of Seal Based on Circular Template
Faced with the problem of registration of round seal, this paper proposes a method to register seal, which uses round template to do that and effectively reduces the computational. This article designs six round templates of different frequencies. At first in this paper seal image is transformed from Cartesian coordinate system to polar coordinate system, and in the polar coordinate system it uses round templates to do convolutions independently with reserved seals and ones to be verified, and then it devises a function by convolution results. Optimum registration angle can be gained by minimization of the function. Experiments show that this method is satisfied and it can be applied into practical situation.
Circular Template image registration seal convolution
JiSheng LIANG Hui WANG Man ZHANG
Department of Computer and Information Technology Northeast Petroleum University Daqing, China
国际会议
2011 4th International Congress on Image and Signal Processing(第四届图像与信号处理国际学术会议 CISP 2011)
上海
英文
2035-2038
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）