然后分析了现有视频解码系统和环路滤波器设计，并且指出了本设计的重点和难点以及解决的思路。
The commonly used techniques for video systems and loop-filtering are discussed. The author presents a solution and the key points.
该系统具有视频压缩、解码、网络传输、图像储存、图像索引回放、摄像机远程控制、云台控制和音频报警等功能。
This system had functions with video compression, decode, network transmission, image store, image index playback, long-range control of vidicon, PTZ control and voice frequency alarm.
DVD系统。在伺服系统，视频信号质量，录影解码和压缩领域有良好的知识储备。
DVD system. Good knowledge in servo system, video signal quality, video decoding and compression.
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