一种基于指形中线的指形特征提取方法

指形识别是基于指形生物特征提取和匹配的人体生物特征识别技术之一．本文针对传统指形特征提取方法可能导致的伪特征提取,提出一种基于指形中线的指形方向校正、特征提取和匹配的方法．该方法能自适应地检测指形方向,较准确地提取指形特征．然后利用得到的指形特征对手形图像进行快速分类,进行手形图像的匹配和识别．实验结果表明该方法避免了提取伪特征的情况,得到了较好的正确率．

A finger shape image's processing algorithm based on middle line of finger

Finger shape recognition is a common method using in human body's multibiometrics recognition technology. With calculating the finger shape profile, a finger shape image's processing algorithm which picks up finger shape characters by middle line of finger shape is improved in this paper. The new method advances a better way to rectify the direction of finger shape and calculate the characters, which can detect the direction of finger shape automatically. It can enhance the efficiency and speed of finger - shape image's quick classifying and searching. The result of the experiment proves that this algorithm can avoid the cases of picking up false characters, reaching good accuracy.