{"title":"A circular seal registration method by transforming the round region into rectangular region","authors":"Jisheng Liang, Wei Li, Hui Wang, Z. Yuan","doi":"10.1109/ICMLC.2012.6359516","DOIUrl":null,"url":null,"abstract":"At present, the registration of the circular seal is complex and not precise enough. This paper proposes a method for seal alignment by turning a circular seal to a rectangular seal. This method can make the registration process simple. First, this method transforms seal images from two-dimensional data into one-dimensional data. Therefore the circular seal along the radius of the image is spread out into a rectangular form and the rectangular image of this seal can be obtained. Second, longitudinal one-dimensional projection of the rectangular image is performed. Finally, the deflection angle between the reserved seal and the tested seal is obtained by calculating the difference between the one-dimensional projections of the reserved seal and the tested seal with 2 π being the circle. The experimental results show that this method obtained highly accuracy results compared with the traditional method.","PeriodicalId":128006,"journal":{"name":"2012 International Conference on Machine Learning and Cybernetics","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 International Conference on Machine Learning and Cybernetics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICMLC.2012.6359516","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
At present, the registration of the circular seal is complex and not precise enough. This paper proposes a method for seal alignment by turning a circular seal to a rectangular seal. This method can make the registration process simple. First, this method transforms seal images from two-dimensional data into one-dimensional data. Therefore the circular seal along the radius of the image is spread out into a rectangular form and the rectangular image of this seal can be obtained. Second, longitudinal one-dimensional projection of the rectangular image is performed. Finally, the deflection angle between the reserved seal and the tested seal is obtained by calculating the difference between the one-dimensional projections of the reserved seal and the tested seal with 2 π being the circle. The experimental results show that this method obtained highly accuracy results compared with the traditional method.