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Hyperspectral single image super-resolution (SISR) aims to enhance spatial resolution while preserving the rich spectral information of hyperspectral images. Most existing methods rely on supervised learning with high-resolution ground…

图像与视频处理 · 电气工程与系统科学 2026-02-05 Xinxin Xu , Yann Gousseau , Christophe Kervazo , Saïd Ladjal

High dynamic range (HDR) imaging is still a challenging task in modern digital photography. Recent research proposes solutions that provide high-quality acquisition but at the cost of a very large number of operations and a slow inference…

计算机视觉与模式识别 · 计算机科学 2023-02-13 Steven Tel , Barthélémy Heyrman , Dominique Ginhac

In recent years, tons of research has been conducted on Single Image Super-Resolution (SISR). However, to the best of our knowledge, few of these studies are mainly focused on compressed images. A problem such as complicated compression…

图像与视频处理 · 电气工程与系统科学 2022-01-19 Agus Gunawan , Sultan Rizky Hikmawan Madjid

Recent advances in image super-resolution (SR) explored the power of deep learning to achieve a better reconstruction performance. However, the feedback mechanism, which commonly exists in human visual system, has not been fully exploited…

计算机视觉与模式识别 · 计算机科学 2019-07-01 Zhen Li , Jinglei Yang , Zheng Liu , Xiaomin Yang , Gwanggil Jeon , Wei Wu

Single image super-resolution (SISR) is a notoriously challenging ill-posed problem, which aims to obtain a high-resolution (HR) output from one of its low-resolution (LR) versions. To solve the SISR problem, recently powerful deep learning…

计算机视觉与模式识别 · 计算机科学 2019-07-15 Wenming Yang , Xuechen Zhang , Yapeng Tian , Wei Wang , Jing-Hao Xue

Super-resolution and denoising are ill-posed yet fundamental image restoration tasks. In blind settings, the degradation kernel or the noise level are unknown. This makes restoration even more challenging, notably for learning-based…

图像与视频处理 · 电气工程与系统科学 2020-07-24 Majed El Helou , Ruofan Zhou , Sabine Süsstrunk

In media industry, the demand of SDR-to-HDRTV up-conversion arises when users possess HDR-WCG (high dynamic range-wide color gamut) TVs while most off-the-shelf footage is still in SDR (standard dynamic range). The research community has…

多媒体 · 计算机科学 2023-10-02 Cheng Guo , Leidong Fan , Ziyu Xue , and Xiuhua Jiang

How to generate the ground-truth (GT) image is a critical issue for training realistic image super-resolution (Real-ISR) models. Existing methods mostly take a set of high-resolution (HR) images as GTs and apply various degradations to…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Du Chen , Jie Liang , Xindong Zhang , Ming Liu , Hui Zeng , Lei Zhang

Most existing super-resolution methods do not perform well in real scenarios due to lack of realistic training data and information loss of the model input. To solve the first problem, we propose a new pipeline to generate realistic…

图像与视频处理 · 电气工程与系统科学 2019-05-30 Xiangyu Xu , Yongrui Ma , Wenxiu Sun

Images captured in low-light conditions usually suffer from very low contrast, which increases the difficulty of subsequent computer vision tasks in a great extent. In this paper, a low-light image enhancement model based on convolutional…

计算机视觉与模式识别 · 计算机科学 2017-11-08 Liang Shen , Zihan Yue , Fan Feng , Quan Chen , Shihao Liu , Jie Ma

Hyperspectral imaging can help better understand the characteristics of different materials, compared with traditional image systems. However, only high-resolution multispectral (HrMS) and low-resolution hyperspectral (LrHS) images can…

计算机视觉与模式识别 · 计算机科学 2019-01-11 Qi Xie , Minghao Zhou , Qian Zhao , Deyu Meng , Wangmeng Zuo , Zongben Xu

Single image super-resolution (SR) is an ill-posed problem which aims to recover high-resolution (HR) images from their low-resolution (LR) observations. The crux of this problem lies in learning the complex mapping between low-resolution…

计算机视觉与模式识别 · 计算机科学 2017-01-05 Ding Liu , Zhaowen Wang , Nasser Nasrabadi , Thomas Huang

When a high-resolution (HR) image is degraded into a low-resolution (LR) image, the image loses some of the existing information. Consequently, multiple HR images can correspond to the LR image. Most of the existing methods do not consider…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Hanbyel Cho , Yekang Lee , Jaemyung Yu , Junmo Kim

Due to the significant information loss in low-resolution (LR) images, it has become extremely challenging to further advance the state-of-the-art of single image super-resolution (SISR). Reference-based super-resolution (RefSR), on the…

计算机视觉与模式识别 · 计算机科学 2019-03-11 Zhifei Zhang , Zhaowen Wang , Zhe Lin , Hairong Qi

Image super-resolution (SR) is an effective way to enhance the spatial resolution and detail information of remote sensing images, to obtain a superior visual quality. As SR is severely ill-conditioned, effective image priors are necessary…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Jing Sun , Huanfeng Shen , Qiangqiang Yuan , Liangpei Zhang

Single Image Super Resolution (SISR) techniques based on Super Resolution Convolutional Neural Networks (SRCNN) are applied to micro-computed tomography ({\mu}CT) images of sandstone and carbonate rocks. Digital rock imaging is limited by…

计算机视觉与模式识别 · 计算机科学 2019-07-17 Ying Da Wang , Ryan Armstrong , Peyman Mostaghimi

Blind super-resolution (SR) aims to recover high-quality visual textures from a low-resolution (LR) image, which is usually degraded by down-sampling blur kernels and additive noises. This task is extremely difficult due to the challenges…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Fuzhi Yang , Huan Yang , Yanhong Zeng , Jianlong Fu , Hongtao Lu

To support the application scenarios where high-resolution (HR) images are urgently needed, various single image super-resolution (SISR) algorithms are developed. However, SISR is an ill-posed inverse problem, which may bring artifacts like…

图像与视频处理 · 电气工程与系统科学 2022-06-10 Zicheng Zhang , Wei Sun , Xiongkuo Min , Wenhan Zhu , Tao Wang , Wei Lu , Guangtao Zhai

Deep networks have achieved great success in image rescaling (IR) task that seeks to learn the optimal downscaled representations, i.e., low-resolution (LR) images, to reconstruct the original high-resolution (HR) images. Compared with…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Bingna Xu , Yong Guo , Luoqian Jiang , Mianjie Yu , Jian Chen

We present a highly accurate single-image super-resolution (SR) method. Our method uses a very deep convolutional network inspired by VGG-net used for ImageNet classification \cite{simonyan2015very}. We find increasing our network depth…

计算机视觉与模式识别 · 计算机科学 2016-11-14 Jiwon Kim , Jung Kwon Lee , Kyoung Mu Lee