系统设计中采用高效的数字视频压缩方式，极大地节省了存贮视频录像所需的磁盘空间。
On the meantime, it adopts high-efficiency digital video compression technique to save large-scale space in disk.
在视频压缩的过程中，实现了帧内编码与帧间编码两种编码方式，运用了预测编码、运动估计、运动补偿等技术。
During the video encoding process, there are two coding types, which are Intra-frame and Inter-frame, using the methods of motion prediction, estimation and compensation.
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