基于CCD的掌纹掌脉采集模块设计

Design of palm print and palm vein acquiring module based on CCD

针对掌纹掌脉身份认证的需求,以掌纹和掌静脉图像采集系统作为研究对象,设计了一种基于CCD的掌纹掌脉采集模块。采集模块采用单CCD作为图像感应芯片,在单颗芯片上同时获得掌纹掌脉图像,光源设计上突破性地采用了激光二极管作为红外补充光源,采集的图像以USB数据形式进行上传。实验表明:采集模块能够获得满足图像处理要求的清晰可靠的掌纹掌脉图像。

Aiming at the requirements of palm print and palm vein authentication,taking the palm print and palm vein image acquisition system as research object,design a palm print and palm vein image acquisition model based on CCD. The acquisition module uses single CCD as the image sensing chip,can obtain the palm print images and the palm vein images at the same time. In addition,the light source design creatively uses laser diode as infrared additional light source,the collected image data is uploaded via USB. Experimental results show that the acquired module can obtain clear and reliable image meeting the requirements of image processing.