Vector quantization (VQ) is an efficient approach of lossy data compression.
矢量量化(VQ)是一种高效的有损压缩技术。
However, the compression is normally lossy (in other words, image data is thrown away as part of the compression process).
但其压缩通常是有损的(换句话说，在压缩过程中会丢弃图像数据)。
Almost all video codecs use lossy compression to minimize the huge amounts of data associated with video.
几乎所有的视频编译码器都采用有损压缩，最小化与视频相关的数据量。
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