中国空间科学技术

中国空间科学技术

• • 上一篇    下一篇

控制冗余图象数据的EQT方法

王彦广   

  1. 北京卫星信息工程研究所
  • 发布日期:1987-12-25

THE EQT METHOD WHICH REPRESENTS DIGITAL PIDTURE WITH REDUNDANCY CONTROL

Wang Yanguang (Beijing Institute of Satellite Information Engineering)   

  • Online:1987-12-25

被引次数

1

摘要： 本文提出了基于四元树QT(Quad Tree,)表示的扩充四元树EQT(Extended Quad Tree)表示。从数据压缩角度看,它着眼于图象之间的性质;从图象数据库的存贮结构看,它考虑了冗余图象数据的控制问题。对附录中的四幅二值图象,它的存贮量仅是QT表示的39%。此外,这种结构还可用于动态跟踪。

关键词: 数据压缩, 数据库, 图象处理, 余度控制系统, 方法

Abstract: In this paper, a new digital picture representation——EQT representaion is proposed. EQT stands for Extended Quadtree. In the view of data compression it emphasizes the properties among pictures. In the view of PDB, it stores the pictures with redundancy control. For the four experimental binary pictures, the storage requirement is only about 39 percent of that of QT representation. By the way, it is worth saying that such a structure can be used for dynamic tracking.