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首页> 外文会议>Conference on ICO20: Optical Information Processing; 20050821-26; Changchun(CN) >An Image Identification System of Seal with Fingerprint Based on CMOS Image Sensor
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An Image Identification System of Seal with Fingerprint Based on CMOS Image Sensor

机译：基于CMOS图像传感器的指纹印章图像识别系统

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摘要

CMOS image sensors now become increasingly competitive with respect to their CCD counterparts, while adding advantages such as no blooming, simpler driving requirements and the potential of on-chip integration of sensor, analog signal conditioning circuits, A/D converter and digital processing functions. Furthermore, CMOS sensors are the best choices for low-cost imaging systems. An image identification system based on CMOS image sensor is used to identify the seal images that include fingerprint, and then determine whether the seal is fake or not. The system consists of a color CMOS image sensor (OV2610), a buffer memory, a CPLD, a MCU (P89C61X2), a USB2.0 interface chip (ISP1581) and a personal computer. The CPLD implement the logic and timing of the system. The MCU and the USB2.0 interface chip deal with the communications between the images acquisition system and PC. Thus PC can send some parameters and commands to the images acquisition system and also read image data from it. The identification of the images of seal is processed by the PC. The structure and scheme of the system are discussed in detail in this paper. Several test images of seal taken by the system are also provided in the paper.
机译：如今，CMOS图像传感器相对于其CCD竞争对手更具竞争力，同时又增加了诸如无光晕，更简单的驱动要求以及传感器，模拟信号调节电路，A / D转换器和数字处理功能的片上集成潜力等优势。此外，CMOS传感器是低成本成像系统的最佳选择。基于CMOS图像传感器的图像识别系统用于识别包含指纹的印章图像，然后确定印章是否为假。该系统由彩色CMOS图像传感器（OV2610），缓冲存储器，CPLD，MCU（P89C61X2），USB2.0接口芯片（ISP1581）和个人计算机组成。 CPLD实现系统的逻辑和时序。 MCU和USB2.0接口芯片处理图像采集系统和PC之间的通信。因此，PC可以将一些参数和命令发送到图像采集系统，并从中读取图像数据。印章图像的识别由PC处理。本文详细讨论了该系统的结构和方案。论文中还提供了一些由系统拍摄的密封件测试图像。

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