基于最大内切圆的掌纹RIO图像截取与定位  

The Palm Image Capture & Positioning RIO Based on the Maximum Inscribed Circle

作　　者：凌镜[1] 姚明海[1] 

机构地区：[1]浙江工业大学,浙江杭州310027

出　　处：《金华职业技术学院学报》2010年第3期73-76,共4页Journal of Jinhua Polytechnic

摘　　要：掌纹识别一般的预处理过程,是通过图像二值化、边缘检测、子图截取等步骤,获取掌纹感兴趣区域(RIO),截取掌纹子图。给出一种基于最大内切圆的子图截取算法,并对该算法进行优化,通过平移和旋转校正,得到掌纹RIO区域子图。This paper describes a general pre-palmprint identification process,through image binaryzation,edge detection,interception and other sub-graph steps,acquire palm region of interest（RIO）,interception of palm sub-graph.Emphasis is given based on the largest inscribed circle of the sub-graph intercept algorithm and the algorithm is optimized,through the translation and rotation correction,to get palm RIO region subgraph.

关 键 词：掌纹识别 预处理 最大内切圆 子图截取 定位 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]