Because the remote sensing information is precious and we expect high exactitude of resumed information, so we give more concern on lossless or nearly lossycompression.
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。
2
In order to improve compression ratio, the combination of lossyandlossless coding method is used in video coding systems.