基于改进脊线跟踪的手背血管识别算法研究  

A Study of Hand Vein Recognition Based on Ridgeline Tracking

作　　者：周苏晋[1] 刘铁根[1] 刘立[1] 王云新[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津300072

出　　处：《激光与红外》2008年第10期1046-1048,共3页Laser & Infrared

摘　　要：在脊线跟踪的基础上,直接在灰度图像上,沿纹线方向追踪血管脊线,在追踪的过程中,局部增强图像,局部设置域值,最后得到一幅血管脊线骨架图和附加其上的细节点信息。该方法有效减少了图像增强的计算量,避免了二值化在域值选取时对信息的丢失。相对于传统方法具有明显的速度优势,而且保持了较高的准确率。In this paper,a new algorithm based on ridgeline tracking is proposed. It directly processes on the gray image, tracks the vein ridgeline along the texture,and overcomes the disadvantages of image disposing. Locally reinforce the image, locally set the region value. Finally, we get a image of hand vein ridgeline. This algorithm effectively decrea- ses the cost of computing, avoids the info losing when setting the region value. Compared with the traditional method, it has remarkable advantage in speed, meantime keen a good veracity.

关 键 词：手背血管 脊线跟踪 生物特征技术 局部增强 

分 类 号：TP751.1[自动化与计算机技术—检测技术与自动化装置]