基于改进脊线跟踪的手背血管识别算法研究

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.

A Study of Hand Vein Recognition Based on Ridgeline Tracking

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 decreases 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 keep a good veracity.