Because the remote sensing information is precious and we expect high exactitude of resumed information, so we give more concern on lossless or nearly lossy compression.
由于遥感信息非常宝贵，要求对信息恢复的准确程度较高，因而对于无损或近无损压缩给予更高的关注。
In order to improve compression ratio, the combination of lossy and lossless coding method is used in video coding systems.
为了提高压缩率，视频编码技术中一般会采用有损和无损压缩编码相结合的方式。
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