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Spectral compressive imaging (SCI) is able to encode the high-dimensional hyperspectral image to a 2D measurement, and then uses algorithms to reconstruct the spatio-spectral data-cube. At present, the main bottleneck of SCI is the…

图像与视频处理 · 电气工程与系统科学 2023-07-04 Lishun Wang , Zongliang Wu , Yong Zhong , Xin Yuan

Correlation plenoptic imaging (CPI) is emerging as a promising approach to light-field imaging (LFI), a technique enabling simultaneous measurement of light intensity distribution and propagation direction from a scene. LFI allows…

光学 · 物理学 2024-06-21 Gianlorenzo Massaro

Phase retrieval, or the process of recovering phase information in reciprocal space to reconstruct images from measured intensity alone, is the underlying basis to a variety of imaging applications including coherent diffraction imaging…

计算机视觉与模式识别 · 计算机科学 2018-11-15 Mathew J. Cherukara , Youssef S. G. Nashed , Ross J. Harder

In recent years, large convolutional neural networks have been widely used as tools for image deblurring, because of their ability in restoring images very precisely. It is well known that image deblurring is mathematically modeled as an…

计算机视觉与模式识别 · 计算机科学 2023-06-01 Davide Evangelista , Elena Morotti , Elena Loli Piccolomini , James Nagy

Hyperspectral images (HSIs) are susceptible to various noise factors leading to the loss of information, and the noise restricts the subsequent HSIs object detection and classification tasks. In recent years, learning-based methods have…

神经与进化计算 · 计算机科学 2020-08-18 Yuqiao Liu , Yanan Sun , Bing Xue , Mengjie Zhang

In this paper, we introduce deep learning technology to tackle two traditional low-level image processing problems, companding and inverse halftoning. We make two main contributions. First, to the best knowledge of the authors, this is the…

计算机视觉与模式识别 · 计算机科学 2017-07-24 Xianxu Hou , Guoping Qiu

We present a fully convolutional network(FCN) based approach for color image restoration. FCNs have recently shown remarkable performance for high-level vision problem like semantic segmentation. In this paper, we investigate if FCN models…

计算机视觉与模式识别 · 计算机科学 2017-04-14 Subhajit Chaudhury , Hiya Roy

Ill-posed inverse problems appear in many image processing applications, such as deblurring and super-resolution. In recent years, solutions that are based on deep Convolutional Neural Networks (CNNs) have shown great promise. Yet, most of…

计算机视觉与模式识别 · 计算机科学 2021-02-05 Shady Abu-Hussein , Tom Tirer , Se Young Chun , Yonina C. Eldar , Raja Giryes

We construct a neural network to perform regression on the local dark-matter density field given line-of-sight peculiar velocities of dark-matter halos, biased tracers of the dark matter field. Our architecture combines a convolutional…

宇宙学与河外天体物理 · 物理学 2025-11-27 Baptiste Barthe-Gold , Nhat-Minh Nguyen , Leander Thiele

Images taken in a low light condition with the presence of camera shake suffer from motion blur and photon shot noise. While state-of-the-art image restoration networks show promising results, they are largely limited to well-illuminated…

图像与视频处理 · 电气工程与系统科学 2023-04-07 Yash Sanghvi , Zhiyuan Mao , Stanley H. Chan

We develop a deep learning technique to infer the non-linear velocity field from the dark matter density field. The deep learning architecture we use is an "U-net" style convolutional neural network, which consists of 15 convolution layers…

宇宙学与河外天体物理 · 物理学 2021-05-21 Ziyong Wu , Zhenyu Zhang , Shuyang Pan , Haitao Miao , Xin Wang , Cristiano G. Sabiu , Jaime Forero-Romero , Yang Wang , Xiao-Dong Li

Deep learning in k-space has demonstrated great potential for image reconstruction from undersampled k-space data in fast magnetic resonance imaging (MRI). However, existing deep learning-based image reconstruction methods typically apply…

图像与视频处理 · 电气工程与系统科学 2020-06-11 Tianming Du , Honggang Zhang , Yuemeng Li , Hee Kwon Song , Yong Fan

Convolution is a central operation in Convolutional Neural Networks (CNNs), which applies a kernel to overlapping regions shifted across the image. However, because of the strong correlations in real-world image data, convolutional kernels…

Recent advances in photoacoustic (PA) imaging have enabled detailed images of microvascular structure and quantitative measurement of blood oxygenation or perfusion. Standard reconstruction methods for PA imaging are based on solving an…

信号处理 · 电气工程与系统科学 2020-04-17 MinWoo Kim , Geng-Shi Jeng , Ivan Pelivanov , Matthew O'Donnell

Blind motion deblurring is one of the most basic and challenging problems in image processing and computer vision. It aims to recover a sharp image from its blurred version knowing nothing about the blur process. Many existing methods use…

计算机视觉与模式识别 · 计算机科学 2019-01-09 Quan Yuan , Junxia Li , Lingwei Zhang , Zhefu Wu , Guangyu Liu

Spectral computed tomography (CT) is an emerging technology capable of providing high chemical specificity, which is crucial for many applications such as detecting threats in luggage. This type of application requires both fast and…

图像与视频处理 · 电气工程与系统科学 2021-03-30 Wail Mustafa , Christian Kehl , Ulrik Lund Olsen , Søren Kimmer Schou Gregersen , David Malmgren-Hansen , Jan Kehres , Anders Bjorholm Dahl

Fourier-based wavefront sensors, such as the Pyramid Wavefront Sensor (PWFS), are the current preference for high contrast imaging due to their high sensitivity. However, these wavefront sensors have intrinsic nonlinearities that constrain…

天体物理仪器与方法 · 物理学 2020-05-22 Rico Landman , Sebastiaan Haffert

State of the art methods in astronomical image reconstruction rely on the resolution of a regularized or constrained optimization problem. Solving this problem can be computationally intensive and usually leads to a quadratic or at least…

计算机视觉与模式识别 · 计算机科学 2017-06-08 Rémi Flamary

Convolutional neural network (CNN)-based methods have achieved great success for single-image superresolution (SISR). However, most models attempt to improve reconstruction accuracy while increasing the requirement of number of model…

图像与视频处理 · 电气工程与系统科学 2020-08-05 Supratik Banerjee , Cagri Ozcinar , Aakanksha Rana , Aljosa Smolic , Michael Manzke

Blind image deconvolution is the problem of recovering the latent image from the only observed blurry image when the blur kernel is unknown. In this paper, we propose an edge-based blur kernel estimation method for blind motion…

计算机视觉与模式识别 · 计算机科学 2018-11-20 Jing Yu , Zhenchun Chang , Chuangbai Xiao