低照度电荷耦合器件图形识别系统设计及应用

摘要

Several mechanisms of the noise origin concerning charge coupled devices(CCDs) under low rnillumination conditions are presented. Using FPGA, image acquisition and real-time noise elimination rnfor CCDs under low illumination are achieved. Also, considering the application environments, a sperncific algorithm is presented for pattern recognition.%介绍了电荷耦合器件及其在低照度条件下的噪声影响机制.通过可编程逻辑器rn件，实现了低照度条件下的电荷耦合器件图像采集及实时噪声消除处理.结合具体的rn应用环境，给出了图形识别的具体算法设计.