期刊
CHINESE OPTICS LETTERS
卷 18, 期 4, 页码 -出版社
OSA-OPTICAL SOC
DOI: 10.3788/COL202018.042604
关键词
speckle correlation; dynamic scattering media; remote sensing
类别
资金
- Youth Innovation Promotion Association of the Chinese Academy of Sciences
- Defense Industrial Technology Development Program of China [D040301]
- National Natural Science Foundation of China [61571427]
Imaging through scattering media via speckle autocorrelation is a popular method based on the optical memory effect. However, it fails if the amount of valid information acquired is insufficient due to a limited sensor size. In this Letter, we reveal a relationship between the detector and object sizes for the minimum requirement to ensure image reconstruction by defining a sampling ratio R, and propose a method to enhance the image quality at a small R by capturing multiple frames of speckle patterns and piecing them together. This method will be helpful in expanding applications of speckle autocorrelation to remote sensing, underwater probing, and so on.
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