中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Optical flow-assisted multi-level fusion network for Light Field image angular reconstruction 期刊论文  OAI收割
SIGNAL PROCESSING-IMAGE COMMUNICATION, 2023, 卷号: 119, 页码: 11
作者:  
Liu, Deyang;  Mao, Yifan;  Huang, Yan;  Cao, Liqun;  Wang, Yuanzhi
  |  收藏  |  浏览/下载:15/0  |  提交时间:2023/11/16
Astronomical image restoration through atmosphere turbulence by lucky imaging (EI CONFERENCE) 会议论文  OAI收割
3rd International Conference on Digital Image Processing, ICDIP 2011, April 15, 2011 - April 17, 2011, Chengdu, China
作者:  
Zhao J.;  Wang J.;  Zhang S.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
In this paper  we develop a lucky imaging system to restore astronomical images through atmosphere turbulence. Our system takes very short exposures  on the order of the atmospheric coherence time. The rapidly changing turbulence leads to a very variable point spread function (PSF)  and the variability of the PSF leads to some frames having better quality than the rest. Only the best frames are selected  aligned and co-added to give a final image with much improved angular resolution. Our system mainly consists of five parts: preprocessing  frame selection  image registration  image reconstruction  and image enhancement. Our lucky imaging system has been successfully applied to restore the astronomical images taken by a 1.23m telescope. We have got clear images of moon surface and Jupiter  and our system can be demonstrated to greatly improve the imaging resolution through atmospheric turbulence. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).