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相关论文: Role of scattering in virtual source array imaging

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Imaging through opaque, highly scattering walls is a long sought after capability with potential applications in a variety of fields. The use of wavefront shaping to compensate for scattering has brought a renewed interest as a potential…

We address the challenge of constructing a consistent and photorealistic Neural Radiance Field in inhomogeneously illuminated, scattering environments with unknown, co-moving light sources. While most existing works on underwater scene…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Mengkun She , Felix Seegräber , David Nakath , Patricia Schöntag , Kevin Köser

One of the biggest challenges in the field of biomedical imaging is the comprehension and the exploitation of the photon scattering through disordered media. Many studies have pursued the solution to this puzzle, achieving light-focusing…

机器学习 · 统计学 2019-04-03 Daniele Ancora , Luca Leuzzi

A spatially varying blur kernel $h(\mathbf{x},\mathbf{u})$ is specified by an input coordinate $\mathbf{u} \in \mathbb{R}^2$ and an output coordinate $\mathbf{x} \in \mathbb{R}^2$. For computational efficiency, we sometimes write…

信号处理 · 电气工程与系统科学 2024-03-12 Nicholas Chimitt , Xingguang Zhang , Yiheng Chi , Stanley H. Chan

This paper presents a novel saturation aware space variant blind image deblurring framework designed to address challenges posed by saturated pixels in deblurring under high dynamic range and low light conditions. The proposed approach…

计算机视觉与模式识别 · 计算机科学 2026-04-20 Muhammad Z. Alam , Larry Stetsiuk , Arooba Zeshan

Ultrafast scattering using X-rays or electrons is an emerging method to obtain structure dynamics at the atomic length and time scales. However, directly resolving in real-space atomic motions is inherently limited by the finite detector…

原子物理 · 物理学 2023-02-09 Adi Natan

The field of biomedical imaging has undergone a rapid growth in recent years, mostly due to the implementation of ad-hoc designed experimental setups, theoretical support methods and numerical reconstructions. Especially for biological…

生物物理 · 物理学 2017-06-30 Daniele Ancora

Interest for spacetime structures has recently been revived, following developments in metamaterials and ultrafast optics. Such structures essentially consist of successions of space-time interfaces for which the theory is still incomplete,…

光学 · 物理学 2019-05-01 Zoé-Lise Deck-Léger , Christophe Caloz

We present scattering from many body systems in a new light. In place of the usual van Hove treatment, (applicable to a wide range of scattering processes using both photons and massive particles) based on plane waves, we calculate the…

光学 · 物理学 2009-10-30 R. Gaehler , J. Felber , F. Mezei , R. Golub

Imaging with optical resolution through highly scattering media is a long sought-after goal with important applications in deep tissue imaging. Although being the focus of numerous works, this goal was considered impractical until recently.…

光学 · 物理学 2012-02-10 Ori Katz , Eran Small , Yaron Silberberg

Resolution enhancements are often desired in imaging applications where high-resolution sensor arrays are difficult to obtain. Many computational imaging methods have been proposed to encode high-resolution scene information on…

图像与视频处理 · 电气工程与系统科学 2018-10-29 Kevin Beale , Jianbo Chen , Kevin F. Kelly , Justin Romberg

Optical imaging through scattering media is a fundamental challenge in many applications. Recently, substantial breakthroughs such as imaging through biological tissues and looking around corners have been obtained by the use of…

光学 · 物理学 2020-07-09 Tomer Yeminy , Ori Katz

Scattering has usually be considered as detrimental for optical focusing or imaging. Recently, more and more research has shown that strongly scattering materials can be utilized to focus coherent light by controlling or shaping the…

光学 · 物理学 2017-05-24 Yanqi Qiao , Xianfeng Chen , Yajun Peng , Yuanlin Zheng

In this work, we propose using camera arrays coupled with coherent illumination as an effective method of improving spatial resolution in long distance images by a factor of ten and beyond. Recent advances in ptychography have demonstrated…

计算机视觉与模式识别 · 计算机科学 2015-11-29 Jason Holloway , M. Salman Asif , Manoj Kumar Sharma , Nathan Matsuda , Roarke Horstmeyer , Oliver Cossairt , Ashok Veeraraghavan

A theorem on subwavelength imaging with arrays of discrete sources is formulated. This theorem is analogous to the Kotelnikov (also named Nyquist-Shannon) sampling theorem as it represents the field at an arbitrary point of space in terms…

光学 · 物理学 2009-04-06 S. I. Maslovski

Ghost imaging with thermal light in scattering media is investigated. We demonstrated both theoretically and experimentally for the first time that the image with high quality can still be obtained in the scattering media by ghost imaging.…

光学 · 物理学 2008-12-14 Wenlin Gong , Pengli Zhang , Xia Shen , Shensheng Han

This is the second paper in a series on light scattering from optically anisotropic scatterers embedded in an isotropic medium. The apparently complex T-matrix theory involving mixing of angular momentum components turns out to be an…

光学 · 物理学 2007-05-23 A. D. Kiselev , V. Yu. Reshetnyak , T. J. Sluckin

We consider the two dimensional quantitative imaging problem of recovering a radiative source inside an absorbing and scattering medium from knowledge of the outgoing radiation measured at the boundary. The medium has an anisotropic…

数值分析 · 数学 2021-01-21 Hiroshi Fujiwara , Kamran Sadiq , Alexandru Tamasan

We first extend our recent experiments of correlation imaging through scattering media to the case of a thick medium, composed of two phase scatterers placed respectively in the image and the Fourier planes of the crystal. The spatial…

量子物理 · 物理学 2020-05-05 Gnatiessoro Soro , Eric Lantz , Alexis Mosset , Fabrice Devaux

We study imaging with an array of sensors that probes a medium with single frequency electromagnetic waves and records the scattered electric field. The medium is known and homogenous except for some small and penetrable inclusions. The…

偏微分方程分析 · 数学 2016-09-21 Liliana Borcea , Josselin Garnier