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Rectifying the orientation of images represents a daily task for every photographer. This task may be complicated even for the human eye, especially when the horizon or other horizontal and vertical lines in the image are missing. In this…

计算机视觉与模式识别 · 计算机科学 2021-05-13 Ionut Mironica , Andrei Zugravu

Scene recognition, particularly for aerial and underwater images, often suffers from various types of degradation, such as blurring or overexposure. Previous works that focus on convolutional neural networks have been shown to be able to…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Jianqi Zhang , Mengxuan Wang , Jingyao Wang , Lingyu Si , Changwen Zheng , Fanjiang Xu

Blind image restoration processors based on convolutional neural network (CNN) are intensively researched because of their high performance. However, they are too sensitive to the perturbation of the degradation model. They easily fail to…

计算机视觉与模式识别 · 计算机科学 2018-09-12 Kazutaka Uchida , Masayuki Tanaka , Masatoshi Okutomi

Removing noise from images is a challenging and fundamental problem in the field of computer vision. Images captured by modern cameras are inevitably degraded by noise which limits the accuracy of any quantitative measurements on those…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Nikhil Verma , Deepkamal Kaur , Lydia Chau

Image quality is the basis of image communication and understanding tasks. Due to the blur and noise effects caused by imaging, transmission and other processes, the image quality is degraded. Blind image restoration is widely used to…

图像与视频处理 · 电气工程与系统科学 2021-01-26 Ningshan Xu

Weakly supervised learning of object detection is an important problem in image understanding that still does not have a satisfactory solution. In this paper, we address this problem by exploiting the power of deep convolutional neural…

计算机视觉与模式识别 · 计算机科学 2016-12-20 Hakan Bilen , Andrea Vedaldi

In smartphones and compact cameras, the Image Signal Processor (ISP) transforms the RAW sensor image into a human-readable sRGB image. Most popular super-resolution methods depart from a sRGB image and upscale it further, improving its…

图像与视频处理 · 电气工程与系统科学 2023-12-27 Marcos V. Conde , Florin Vasluianu , Radu Timofte

Until quite recently, the backbone of nearly every state-of-the-art computer vision model has been the 2D convolution. At its core, a 2D convolution simultaneously mixes information across both the spatial and channel dimensions of a…

计算机视觉与模式识别 · 计算机科学 2025-03-24 George Cazenavette , Joel Julin , Simon Lucey

Generalizable Image Super-Resolution aims to enhance model generalization capabilities under unknown degradations. To achieve this goal, the models are expected to focus only on image content-related features instead of overfitting…

计算机视觉与模式识别 · 计算机科学 2025-09-19 Hongjun Wang , Jiyuan Chen , Zhengwei Yin , Xuan Song , Yinqiang Zheng

Spatial attention has been introduced to convolutional neural networks (CNNs) for improving both their performance and interpretability in visual tasks including image classification. The essence of the spatial attention is to learn a…

图像与视频处理 · 电气工程与系统科学 2020-08-03 Linchuan Xu , Jun Huang , Atsushi Nitanda , Ryo Asaoka , Kenji Yamanishi

Variational method and deep learning method are two mainstream powerful approaches to solve inverse problems in computer vision. To take advantages of advanced optimization algorithms and powerful representation ability of deep neural…

计算机视觉与模式识别 · 计算机科学 2019-11-19 Qingchao Zhang , Yunmei Chen

Image denoising is a classical problem in low level computer vision. Model-based optimization methods and deep learning approaches have been the two main strategies for solving the problem. Model-based optimization methods are flexible for…

计算机视觉与模式识别 · 计算机科学 2018-12-31 Chang Liu , Zhaowei Shang , Anyong Qin

Single-image super-resolution is a fundamental task for vision applications to enhance the image quality with respect to spatial resolution. If the input image contains degraded pixels, the artifacts caused by the degradation could be…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Xinyi Zhang , Hang Dong , Zhe Hu , Wei-Sheng Lai , Fei Wang , Ming-Hsuan Yang

Image restoration has seen great progress in the last years thanks to the advances in deep neural networks. Most of these existing techniques are trained using full supervision with suitable image pairs to tackle a specific degradation.…

图像与视频处理 · 电气工程与系统科学 2020-09-11 Leonhard Helminger , Michael Bernasconi , Abdelaziz Djelouah , Markus Gross , Christopher Schroers

This paper presents a new variational inference framework for image restoration and a convolutional neural network (CNN) structure that can solve the restoration problems described by the proposed framework. Earlier CNN-based image…

图像与视频处理 · 电气工程与系统科学 2022-07-20 Jae Woong Soh , Nam Ik Cho

In recent years, deep learning has achieved remarkable success in the field of image restoration. However, most convolutional neural network-based methods typically focus on a single scale, neglecting the incorporation of multi-scale…

图像与视频处理 · 电气工程与系统科学 2025-02-27 Jiatao Jiang , Zhen Cui , Chunyan Xu , Jian Yang

In this paper, we propose a very deep fully convolutional encoding-decoding framework for image restoration such as denoising and super-resolution. The network is composed of multiple layers of convolution and de-convolution operators,…

计算机视觉与模式识别 · 计算机科学 2016-09-02 Xiao-Jiao Mao , Chunhua Shen , Yu-Bin Yang

Ground-based solar image restoration is a computationally expensive procedure that involves nonlinear optimization techniques. The presence of atmospheric turbulence produces perturbations in individual images that make it necessary to…

天体物理仪器与方法 · 物理学 2023-07-26 A. Asensio Ramos , S. Esteban Pozuelo , C. Kuckein

Most compressive sensing (CS) reconstruction methods can be divided into two categories, i.e. model-based methods and classical deep network methods. By unfolding the iterative optimization algorithm for model-based methods onto networks,…

图像与视频处理 · 电气工程与系统科学 2021-01-25 Zhonghao Zhang , Yipeng Liu , Jiani Liu , Fei Wen , Ce Zhu

Real-world exposure correction is fundamentally challenged by spatially non-uniform degradations, where diverse exposure errors frequently coexist within a single image. However, existing exposure correction methods are still largely…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Ao Li , Jiawei Sun , Le Dong , Zhenyu Wang , Weisheng Dong