光学精密工程2009，Vol.17Issue(10)：2555-2560,6.
掌纹图像采集装置的研制
Development of palm-print image sampling equipment
摘要
Abstract
Currently,palm-print sampling instruments all take advantage of PCs to control scanners or image sampling cards to achieve the image sampling.To improve the sampling speed and reduce the noise interference,a new instrument based on Digital Signal Processing(DSP) is proposed and its sampling mechanism,optical structure and hardware circuits are designed.A core,TMS320VC5509A DSP of the TI Company,is used as a control element to extend the storage space while a decoder SAA7113H is controlled to convert the real palm-prints into digital images,so that the sampling procedure is achieved in the off-PC state.An experiment for sampling palm-print images is undertaken and the obtained images are recognized.Experimental results indicate that the sampling time by proposed equipment is 0.6 s for one image and the correct recognition rate is 99.47%,which shows that this equipment operates at its highest speed,anti-noise character and recognition rate.关键词
数字信号处理(DSP)/环形光源/SAA7113H/掌纹采集Key words
Digital Signal Processing(DSP)/ring illuminator/SAA7113H/palmprint sampling分类
信息技术与安全科学引用本文复制引用
苑玮琦,赵继忠,刘博,汤永华..掌纹图像采集装置的研制[J].光学精密工程,2009,17(10):2555-2560,6.基金项目
国家自然科学基金资助项目(No.60672078 （）
No.60472088) （）
