Atmospheric turbulence mitigation based on turbulence extraction

Renjie He, Zhiyong Wang, Yangyu Fan, David Fengg

科研成果: 书/报告/会议事项章节会议稿件同行评审

20 引用 (Scopus)

摘要

A video taken under the influence of atmospheric turbulence suffers from serious distortion caused by the variation of optical refractive index. In order to reduce geometric distortion and time-space-varying blur, and recover both coarse structure and fine details, a novel turbulence extraction based approach for recovering a latent image from an atmospheric turbulence degraded imagery sequence is proposed. Firstly, a non-rigid image registration method is applied as a preprocessing to reduce geometric deformation. Secondly, the registered image sequence is decomposed into a low-rank background scene component and a sparse turbulent component via matrix decomposition. Different from other approaches, which intend to remove turbulence directly, we manage to extract information of distortion position from the sparse turbulent component to indicate the sharpest turbulence patches. The selected sharpest turbulence patches are then enhanced and fused to generate an enhanced detail layer. Finally, the output image is generated by fusing the deblurred background scene layer and the enhanced detail layer together. Experiments indicate that our approach is capable of significantly alleviating atmospheric turbulence blur and geometric distortion.

源语言英语
主期刊名2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Proceedings
出版商Institute of Electrical and Electronics Engineers Inc.
1442-1446
页数5
ISBN(电子版)9781479999880
DOI
出版状态已出版 - 18 5月 2016
活动41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Shanghai, 中国
期限: 20 3月 201625 3月 2016

出版系列

姓名ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
2016-May
ISSN(印刷版)1520-6149

会议

会议41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016
国家/地区中国
Shanghai
时期20/03/1625/03/16

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