这是来自宇宙的数字图像，从中我们看到了几十个卫星轨道的数字表示，他们在高速旋转的地球。
This is an image from the digital Universe, in which we see the digital representation of the orbits of dozens of satellites as they rotate the Earth at high speed.
由于电磁场量的线性关联，多波段遥感数字图像可以表示为多维空间数据场量。
Because the linear connection between ground electromagnetic field and multi_band DNS, the digital image can be expressed as multi_dimensional spatial data field.
图像视频压缩所解决的问题是尽量减少表示数字图像时所需的数据量。
What the image video compression solves is reducing the data amount as possible while showing digital images.
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