中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
对迭代位移叠加像复原方法的改进

文献类型:期刊论文

作者金振宇; 刘忠; 邱耀辉
刊名光学学报(Acta Optica Sinica)
出版日期2009-05
卷号29期号:5页码:1205-1210
关键词图像处理 迭代位移叠加法 扩展目标 数值仿真
ISSN号0253-2239
其他题名Improvement of iterative shift- and-add image reconstruction method
产权排序第一完成单位
中文摘要迭代位移叠加法(ISA)是一种天文高分辨空域统计重建方法,对双星等多点源天文目标的空域统计重建试验表明,多点源目标的重建效果优于经典的重谱法,计算速度也比重谱法快。该方法不能直接应用于太阳或卫星等天文和空间扩展目标的高分辨重建中,因此对迭代位移叠加法进行修正后进行了不同光子水平下的人造卫星的高分辨重建的数值仿真试验。对暗弱扩展目标的仿真重建试验表明,修正的迭代位移叠加法具有明显的抑制光子噪声的效果,具有比重谱法等频域重建方法更好的重建效果。
英文摘要Iterative shift- and-add technique (ISA) refers one of the space domain statistical reconstruction methods. The experiments of the space domain statistical reconstruction, of which objective is the multipoint-source objective such as binary star, show that the effect of ISA is better than the speckle masking and also its speed is faster than the speckle masking. ISA cannot be directly used to the high-resolution reconstruction of astronomical and space extended objective such as the sun or satellites so that this article discusses the possibilities of applying ISA to extended objective reconstruction by modification and carries out numerical simulation experiments of high resolution reconstruction of satellites under different photon noises. The simulation experiments show the improved ISA can silence photon noise and for the faint expanding objective reconstruction it has better reconstruction effect than frequency reconstruction method such as speckle masking.
学科主题天文学
分类号TP391.41
收录类别EI ; CSCD
语种中文
CSCD记录号CSCD:3587123
源URL[http://ir.ynao.ac.cn/handle/114a53/4768]  
专题云南天文台_抚仙湖太阳观测站
推荐引用方式
GB/T 7714
金振宇,刘忠,邱耀辉. 对迭代位移叠加像复原方法的改进[J]. 光学学报(Acta Optica Sinica),2009,29(5):1205-1210.
APA 金振宇,刘忠,&邱耀辉.(2009).对迭代位移叠加像复原方法的改进.光学学报(Acta Optica Sinica),29(5),1205-1210.
MLA 金振宇,et al."对迭代位移叠加像复原方法的改进".光学学报(Acta Optica Sinica) 29.5(2009):1205-1210.

入库方式: OAI收割

来源:云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。