Recursion-driven bispectral imaging for dynamic scattering scenes

He, Si; Wang, Xia; Ma, Kai; Li, Linhao; Zhang, Yixin

doi:10.1364/ol.479873

Cited by 6 publications

(1 citation statement)

References 31 publications

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“…Many methods and techniques for extending the optical memory effect have emerged, such as techniques that utilize reference objects [ 17 ] or a priori knowledge [ 22 ] to achieve imaging in the range of the super-memory effect, and depth-of-field extensions for imaging through scattering media by means of optical field estimation [ 23 ] or speckle estimation [ 24 ]. In addition to the above techniques, imaging under strong ambient light interference conditions [ 25 ], imaging of dynamic objects hidden behind scattering media [ 26 , 27 ], multispectral imaging [ 15 ], 3D optical memory effect imaging [ 28 ], and imaging by combining scattering correlation techniques with compressed sensing techniques [ 29 , 30 ] and binocular vision techniques [ 31 , 32 ] have also been realized.…”

Section: Introductionmentioning

confidence: 99%

A Single-Shot Scattering Medium Imaging Method via Bispectrum Truncation

Han,

Shen,

Yuan

et al. 2024

Sensors

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Imaging using scattering media is a very important yet challenging technology. As one of the most widely used scattering imaging methods, speckle autocorrelation technology has important applications in several fields. However, traditional speckle autocorrelation imaging methods usually use iterative phase recovery algorithms to obtain the Fourier phase of hidden objects, posing issues such as large data calculation volumes and uncertain reconstruction results. Here, we propose a single-shot scattering imaging method based on the bispectrum truncation method. The bispectrum analysis is utilized for hidden object phase recovery, the truncation method is used to avoid the computation of redundant data when calculating the bispectrum data, and the method is experimentally verified. The experimental results show that our method does not require uncertain iterative calculations and can reduce the bispectrum data computation by more than 80% by adjusting the truncation factor without damaging the imaging quality, which greatly improves imaging efficiency. This method paves the way for rapid imaging through scattering media and brings benefits for imaging in dynamic situations.

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Section: Introductionmentioning

confidence: 99%

A Single-Shot Scattering Medium Imaging Method via Bispectrum Truncation

Han,

Shen,

Yuan

et al. 2024

Sensors

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Improving the performance of speckle correlation imaging by using a speckle refinement method with self-calibrated homomorphic filtering

Liu,

Cui,

Shi

et al. 2024

Optics & Laser Technology

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Super-resolution imaging through scattering media based on improved triple correlation recursion and deterministic iterative estimation

Liu,

Cui,

Shi

et al. 2023

Appl. Opt.

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Iterative phase retrieval algorithms are commonly used in computational techniques and optimization methods to obtain the reconstruction of objects hidden behind opaque scattering media. However, these methods are susceptible to converging to incorrect local minima, and the calculation results tend to be unstable. In this paper, a triple-correlation-based super-resolution imaging (TCSI) framework is proposed to achieve single-shot imaging of unknown objects hidden behind the scattering medium. The amplitude spectrum of the object is obtained by a speckle correlation (SC) method. Iterative relaxation recursion (IRR) sufficiently extracts object information from the triple correlation (TC) of the speckle patterns, serving as the prior initial guess for the iterative estimation algorithm (IE) to obtain a deterministic phase spectrum. Blur correction (BC) is then applied to the diffraction-limited image to achieve super-resolution imaging. Experimental results demonstrate that the flexible framework could effectively overcome the influence of speckle resolution and outperform traditional methods in terms of performance. Our approach provides a basis for non-invasively visualizing various samples behind scattering media.

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Recursion-driven bispectral imaging for dynamic scattering scenes

Cited by 6 publications

References 31 publications

A Single-Shot Scattering Medium Imaging Method via Bispectrum Truncation

A Single-Shot Scattering Medium Imaging Method via Bispectrum Truncation

Improving the performance of speckle correlation imaging by using a speckle refinement method with self-calibrated homomorphic filtering

Super-resolution imaging through scattering media based on improved triple correlation recursion and deterministic iterative estimation

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