安全检测：瑞星：安全 诺顿：安全 卡巴：安全
【Abstract】 With the large-scale integrated circuits and microelectronic technology development, the number of analog signal processing has been an increasing number of applications to various electrical devices. FPGA is being used more among digital processing technology in recent years. In this subject, the more popular FPGA technology combined with digital television technology is utilized for the processing of the video signal of the X-ray perspective image after digitalization. The negative, mirror, multi-frame storage, as well as real-time processing such as noise reduction features of the video signal has been realized with using of FPGA. The subject presents a novel complex multi-recursive noise reduction algorithm. This method is improved based on the traditional single-recursive noise reduction method. The experiment results showed that when X-ray television system based on this method is regulated noise reduction coefficient, the effects of noise reduction, as well as movement of the tail of the image did not generate the feeling of transition. In practice, doctors can be easily found the best combination of the effect of noise reduction and the conflict of the movements trailing. It makes the work of doctors convenience and greatly enhanced the efficiency of diagnosis.
【关键词】 FPGA； 图像处理； 降噪；
【Key words】 FPGA； image processing； noise reduction；