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In this paper, we propose a novel convolutional neural network (CNN) architecture considering both local and global features for image enhancement. Most conventional image enhancement methods, including Retinex-based methods, cannot restore…

图像与视频处理 · 电气工程与系统科学 2019-05-09 Yuma Kinoshita , Hitoshi Kiya

Real-world image restoration deals with the recovery of images suffering from an unknown degradation. This task is typically addressed while being given only degraded images, without their corresponding ground-truth versions. In this hard…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Sean Man , Guy Ohayon , Ron Raphaeli , Michael Elad

Fast data acquisition in Magnetic Resonance Imaging (MRI) is vastly in demand and scan time directly depends on the number of acquired k-space samples. The data-driven methods based on deep neural networks have resulted in promising…

图像与视频处理 · 电气工程与系统科学 2020-01-01 Ali Pour Yazdanpanah , Onur Afacan , Simon K. Warfield

Deep image restoration models aim to learn a mapping from degraded image space to natural image space. However, they face several critical challenges: removing degradation, generating realistic details, and ensuring pixel-level consistency.…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Xinqi Lin , Fanghua Yu , Jinfan Hu , Zhiyuan You , Wu Shi , Jimmy S. Ren , Jinjin Gu , Chao Dong

Image set recognition has been widely applied in many practical problems like real-time video retrieval and image caption tasks. Due to its superior performance, it has grown into a significant topic in recent years. However, images with…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Chuan-Xian Ren , You-Wei Luo , Xiao-Lin Xu , Dao-Qing Dai , Hong Yan

Restoring images afflicted by complex real-world degradations remains challenging, as conventional methods often fail to adapt to the unique mixture and severity of artifacts present. This stems from a reliance on indirect cues which poorly…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Xin Su , Chen Wu , Yu Zhang , Chen Lyu , Zhuoran Zheng

Image quality assessment (IQA) aims to assess the perceptual quality of images. The outputs of the IQA algorithms are expected to be consistent with human subjective perception. In image restoration and enhancement tasks, images generated…

计算机视觉与模式识别 · 计算机科学 2021-04-26 Shuwei Shi , Qingyan Bai , Mingdeng Cao , Weihao Xia , Jiahao Wang , Yifan Chen , Yujiu Yang

Recently, several discriminative learning approaches have been proposed for effective image restoration, achieving convincing trade-off between image quality and computational efficiency. However, these methods require separate training for…

计算机视觉与模式识别 · 计算机科学 2018-07-04 Lei Xiao , Felix Heide , Wolfgang Heidrich , Bernhard Schölkopf , Michael Hirsch

Despite the breakthroughs in quality of image enhancement, an end-to-end solution for simultaneous recovery of the finer texture details and sharpness for degraded images with low resolution is still unsolved. Some existing approaches focus…

计算机视觉与模式识别 · 计算机科学 2019-01-17 Soumya Shubhra Ghosh , Yang Hua , Sankha Subhra Mukherjee , Neil Robertson

A new algorithm is developed to jointly recover a temporal sequence of images from noisy and under-sampled Fourier data. Specifically, we consider the case where each data set is missing vital information that prevents its (individual)…

数值分析 · 数学 2022-05-13 Yao Xiao , Jan Glaubitz , Anne Gelb , Guohui Song

Image quality assessment (IQA) is the key factor for the fast development of image restoration (IR) algorithms. The most recent IR methods based on Generative Adversarial Networks (GANs) have achieved significant improvement in visual…

图像与视频处理 · 电气工程与系统科学 2020-09-29 Jinjin Gu , Haoming Cai , Haoyu Chen , Xiaoxing Ye , Jimmy Ren , Chao Dong

With an increased interest in applications that require a clean background image, such as video surveillance, object tracking, street view imaging and location-based services on web-based maps, multiple algorithms have been developed to…

计算机视觉与模式识别 · 计算机科学 2018-04-13 Aditee Shrotre , Lina Karam

Reconstruction of signals from compressively sensed measurements is an ill-posed problem. In this paper, we leverage the recurrent generative model, RIDE, as an image prior for compressive image reconstruction. Recurrent networks can model…

计算机视觉与模式识别 · 计算机科学 2017-05-05 Akshat Dave , Anil Kumar Vadathya , Kaushik Mitra

Super-resolution (SR), a classical inverse problem in computer vision, is inherently ill-posed, inducing a distribution of plausible solutions for every input. However, the desired result is not simply the expectation of this distribution,…

计算机视觉与模式识别 · 计算机科学 2025-04-28 Fengjia Zhang , Samrudhdhi B. Rangrej , Tristan Aumentado-Armstrong , Afsaneh Fazly , Alex Levinshtein

In this work, we consider the image super-resolution (SR) problem. The main challenge of image SR is to recover high-frequency details of a low-resolution (LR) image that are important for human perception. To address this essentially…

计算机视觉与模式识别 · 计算机科学 2017-11-22 Wenhan Yang , Jiashi Feng , Jianchao Yang , Fang Zhao , Jiaying Liu , Zongming Guo , Shuicheng Yan

GAN-based image compression schemes have shown remarkable progress lately due to their high perceptual quality at low bit rates. However, there are two main issues, including 1) the reconstructed image perceptual degeneration in color,…

图像与视频处理 · 电气工程与系统科学 2023-06-21 Fanxin Xia , Jian Jin , Lili Meng , Feng Ding , Huaxiang Zhang

Image Super-Resolution (SR) techniques improve visual quality by enhancing the spatial resolution of images. Quality evaluation metrics play a critical role in comparing and optimizing SR algorithms, but current metrics achieve only limited…

图像与视频处理 · 电气工程与系统科学 2020-12-17 Tiesong Zhao , Yuting Lin , Yiwen Xu , Weiling Chen , Zhou Wang

Conventional multi-view re-ranking methods usually perform asymmetrical matching between the region of interest (ROI) in the query image and the whole target image for similarity computation. Due to the inconsistency in the visual…

计算机视觉与模式识别 · 计算机科学 2018-08-15 Jun Li , Chang Xu , Wankou Yang , Changyin Sun , Dacheng Tao , Hong Zhang

Generating high-quality synthetic data is crucial for addressing challenges in medical imaging, such as domain adaptation, data scarcity, and privacy concerns. Existing image quality metrics often rely on reference images, are tailored for…

图像与视频处理 · 电气工程与系统科学 2024-07-23 Karl Van Eeden Risager , Torkan Gholamalizadeh , Mostafa Mehdipour Ghazi

Basic group of visual techniques such as color, shape, texture are used in Content Based Image Retrievals (CBIR) to retrieve query image or subregion of image to find similar images in image database. To improve query result, relevance…

计算机视觉与模式识别 · 计算机科学 2015-08-28 Mohini P. Sardey , G. K. Kharate