基于Freeman链码的圆识别方法  

Circle Recognition Algorithm Based on Freeman Chain Code

作　　者：张显全[1] 王继军[1] 蒋联源[1] 

机构地区：[1]广西师范大学计算机科学系,桂林541004

出　　处：《计算机工程》2007年第15期196-198,201,共4页Computer Engineering

基　　金：广西壮族自治区自然科学基金资助项目(0447035)

摘　　要：在研究圆的Freeman链码性质并得出圆的Freeman链码与其对称链码的关系后,提出了一种基于Freeman链码性质的圆识别方法,通过圆的Freeman链码与其对称链码的相似度和奇偶码值出现的次数对圆进行识别。实验结果表明,该方法识别准确、效率高。This paper suggests and proves two properties of circle＇s Freeman chain code, the four odd numbers of eight-direction chain code are equal and also even number, the Freeman cycle chain code and its symmetric cycle chain code is the same. The new circle recognition algorithm based on Freeman chain is proposed, which only needs two parameters： the dissimilarity of eight-direction chain code, and the similarity of Free＇nan chain and its symmetric chain. Experiment results show that the method can recognize accurately the circles with high efficiency.

关 键 词：圆 FREEMAN链码 识别 对称 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]