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1前言视频录像是闭路电视监控领域最重要的环节之一,而视频录像的方式也经历了从最初的VHS制式的视频磁带录像机(VCR),到目前普遍使用的硬盘录像机
1 Introduction Video recording is one of the most important aspects of closed-circuit television monitoring. The video recording method has also gone from the original VHS video tape recorder (VCR) to the commonly used hard disk video recorder