整幅卫星云图数据的高效无失真压缩

Efficient and Lossless Compression of Satellite Cloud Charts in Full Size

整幅卫星云图数据的高效无失真压缩吴乐南（东南大学无线电工程系，南京２１００１８）范天锡，王大昌，张其松，戎志国（中国气象局国家卫星气象中心北京１０００８１）气象业务需要无损失地长期保存全尺寸的原始地球气象卫星数字遥感云图，但是，整幅云图的数据量极其庞...

Aimed at the characteristic of meteorological satellite cloudcharts in full size,a 2D-DPCM predictor along with a reflex-type entropy enceder which combines the Huffman coding with the run-length coding,has been utilizedto noiselessly encode this type of images at about a 3 to 1 compression ratio.