中国空间科学技术

中国空间科学技术

• • 上一篇    

SPOT遥感图象的信息保持型压缩

陈发新,宋国文   

  1. 成都电信技术研究所 ,成都电信技术研究所
  • 发布日期:1991-04-25

INFORMATION-PRESERVING COMPRESSION OF SPOT REMOTE-SENSING IMAGES

Chen Faxin Song Guowen (Chengdu Institute of Telecommunication Techniques)   

  • Online:1991-04-25

摘要： 对SPOT遥感图象的信息保持型压缩编码进行了研究。对几种不同的预测器及A_2、A_3线性码进行了比较,得出如下结论:在SPOT 遥感图象的信息保持型压缩编码中,采用文献[1]提出的三点预测器较好,线性码采用A_3码较好;两者结合,在信息保持率大于99%时,可使压缩比达2倍以上。文内还对在压缩图象的传输与恢复中碰到的问题进行了探讨。

关键词: SPOT 卫星, 图象编码, 压缩编码, 图象传输, 图象恢复

Abstract: The purpose of this paper is to study the information-preserving compression coding of SPOT remote-sensing image.We come to the conclu- sion.For the compression coding of information-preserving of SPOT remo- te-sensing image,the compression ratio is larger than 2 when combining the three-point predictor and the A_3 linear code under the condition of that the ration of information-preserving is more than 99%.