指静脉图像采集与质量评估研究综述

Review:Finger Vein Image Acquisition and Quality Evaluation

指静脉识别是生物信息识别领域的研究热门,指静脉图像采集系统的研发是指静脉识别的关键第一步,但是采集系统获取的指静脉图像会存在一些质量问题,而低质量的指静脉图像会影响识别准确率.本文首先总结并阐述了指静脉图像采集系统的照明方式及光源电路、控制电路的设计,并对光源电路各部分器件的选择做了分析,其次概述了近年来采集系统在装置结构与采集方式上的改进与创新,然后论述了对采集到的指静脉图像做质量评估的必要性,并对代表性的图像质量评估方法进行了评述,最后对指静脉采集系统与质量评估方法的研究趋势做了总结与展望.

Finger vein recognition has become a hot research topic in the field of Biometrics.The development of the image acquisition system is the key fiist step in finger vein recognition.However,the finger vein images acquired by the acquisition system may have some quality problems,and low-quality finger vein images will affect the recognition accuracy.First Jthe design of the lighting method,light source circuit,and control circuit of the finger vein image acquisition system are summarized and described,and the component selection of the light source circuit is analyzed.Second Jthe improvement and innovation of acquisition device structure and acquisition methods in recent years are introduced.Moreover,the necessity of evaluating the quality of the acquired finger vein images is discussed,and representative image quality evaluation methods are reviewed.Finally Jthe research trend of finger vein acquisition system and images quality evaluation method is prospected.