| 卫星图象按块分频压缩法 |
| |
| 引用本文： | 李敦玲,周孝宽.卫星图象按块分频压缩法[J].北京航空航天大学学报,1993(4):129-135. |
| |
| 作者姓名： | 李敦玲 周孝宽 |
| |
| 作者单位： | 北京航空航天大学宇航学院
(李敦玲)，北京航空航天大学宇航学院(周孝宽) |
| |
| 摘 要： | 针对星载实时压缩的需要，设计了一种按块分频压缩算法。该算法以按块定长压缩为基础。用二级拟合修正，与高频纹理特征修正相结合的方式恢复原图象信息，得到了四倍压缩比下，有限误码扩散及较好的图象保真效果。
|
| 关 键 词： | 卫星 分频压缩 遥感图象 实时处理 |
BLOCK BASED FREQUENCY DIVISION ENCODING OF SATELLITE IMAGE |
| |
| Li Dunling Zhou Xiaokuan.BLOCK BASED FREQUENCY DIVISION ENCODING OF SATELLITE IMAGE[J].Journal of Beijing University of Aeronautics and Astronautics,1993(4):129-135. |
| |
| Authors: | Li Dunling Zhou Xiaokuan |
| |
| Institution: | School of Astronautics |
| |
| Abstract: | To fit the requirements of air-borne real time satellite image data compression, a new method, block based frequency division encoding method, is designed. Features of the method are fixed compression ratio for each block, compound image data recovering consists of bilinear data interpolation, least square and high frenquency texture data correction. The characteristics of the method are compression ratio 4, bounded channel error spreading and good vision quality of the recovered image. |
| |
| Keywords: | information compression remote image real-time processing |
| 本文献已被 CNKI 维普 等数据库收录！ |
