Spectral speckle-correlation imaging

We present a method for single-shot spectrally resolved imaging through scattering media by using the spectral memory effect of speckles. In our method, a single speckle pattern from a multi-colored object is captured through scattering media with a monochrome image sensor. The color object is recov...

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Bibliographic Details
Published in:Applied optics (2004) 2021-03, Vol.60 (8), p.2388
Main Authors: Ehira, Kunihiko, Horisaki, Ryoichi, Nishizaki, Yohei, Naruse, Makoto, Tanida, Jun
Format: Article
Language:English
Subjects:
Diffusers
Emission analysis
Emission spectra
Imaging
Phase retrieval
Scattering
Speckle patterns
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Summary:We present a method for single-shot spectrally resolved imaging through scattering media by using the spectral memory effect of speckles. In our method, a single speckle pattern from a multi-colored object is captured through scattering media with a monochrome image sensor. The color object is recovered by correlation of the captured speckle and a three-dimensional phase retrieval process. The proposed method was experimentally demonstrated by using point sources with different emission spectra located between diffusers. This study paves the way for non-invasive and low-cost spectral imaging through scattering media.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.418361