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The main challenge of single image super resolution (SISR) is the recovery of high frequency details such as tiny textures. However, most of the state-of-the-art methods lack specific modules to identify high frequency areas, causing the…

计算机视觉与模式识别 · 计算机科学 2018-07-19 Yuan Liu , Yuancheng Wang , Nan Li , Xu Cheng , Yifeng Zhang , Yongming Huang , Guojun Lu

Real-world image super-resolution (RealSR) aims to enhance the visual quality of in-the-wild images, such as those captured by mobile phones. While existing methods leveraging large generative models demonstrate impressive results, the high…

计算机视觉与模式识别 · 计算机科学 2025-10-06 Haoze Sun , Linfeng Jiang , Fan Li , Renjing Pei , Zhixin Wang , Yong Guo , Jiaqi Xu , Haoyu Chen , Jin Han , Fenglong Song , Yujiu Yang , Wenbo Li

Super-resolution (SR) aims to reconstruct high-resolution (HR) images from their low-resolution (LR) counterparts, often relying on effective downsampling to generate diverse and realistic training pairs. In this work, we propose a…

图像与视频处理 · 电气工程与系统科学 2025-03-18 Sohwi Kim , Tae-Kyun Kim

Benefiting from a relatively larger aperture's angle, and in combination with a wide transmitting bandwidth, near-field synthetic aperture radar (SAR) provides a high-resolution image of a target's scattering distribution-hot spots.…

图像与视频处理 · 电气工程与系统科学 2022-11-29 Xu Zhan , Xiaoling Zhang , Wensi Zhang , Jun Shi , Shunjun Wei , Tianjiao Zeng

Diffusion-based image super-resolution (SR) methods have demonstrated remarkable performance. Recent advancements have introduced deterministic sampling processes that reduce inference from 15 iterative steps to a single step, thereby…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Zihang Liu , Zhenyu Zhang , Hao Tang

Image restoration is a long-standing task that seeks to recover the latent sharp image from its deteriorated counterpart. Due to the robust capacity of self-attention to capture long-range dependencies, transformer-based methods or some…

计算机视觉与模式识别 · 计算机科学 2024-07-29 Fangwei Hao , Jiesheng Wu , Ji Du , Yinjie Wang , Jing Xu

With advancement in deep neural network (DNN), recent state-of-the-art (SOTA) image superresolution (SR) methods have achieved impressive performance using deep residual network with dense skip connections. While these models perform well…

图像与视频处理 · 电气工程与系统科学 2021-01-25 Zhihong Pan , Baopu Li , Teng Xi , Yanwen Fan , Gang Zhang , Jingtuo Liu , Junyu Han , Errui Ding

Deep Convolutional Neural Networks (DCNNs) have achieved impressive performance in Single Image Super-Resolution (SISR). To further improve the performance, existing CNN-based methods generally focus on designing deeper architecture of the…

图像与视频处理 · 电气工程与系统科学 2020-05-22 Wenjie Ai , Xiaoguang Tu , Shilei Cheng , Mei Xie

Rapid technological advancements have tremendously increased the data acquisition capabilities of remote sensing satellites. However, the data utilization efficiency in satellite missions is very low. This growing data also escalates the…

图像与视频处理 · 电气工程与系统科学 2021-10-20 Atal Tewari , Chennuri Prateek , Nitin Khanna

Unified image restoration is a significantly challenging task in low-level vision. Existing methods either make tailored designs for specific tasks, limiting their generalizability across various types of degradation, or rely on training…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Huaqiu Li , Yong Wang , Tongwen Huang , Hailang Huang , Haoqian Wang , Xiangxiang Chu

Restoring low-resolution text images presents a significant challenge, as it requires maintaining both the fidelity and stylistic realism of the text in restored images. Existing text image restoration methods often fall short in hard…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Chenglu Pan , Xiaogang Xu , Ganggui Ding , Yunke Zhang , Wenbo Li , Jiarong Xu , Qingbiao Wu

Image Super-Resolution (ISR), which aims at recovering High-Resolution (HR) images from the corresponding Low-Resolution (LR) counterparts. Although recent progress in ISR has been remarkable. However, they are way too computationally…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Jie Cai , Zibo Meng , Jiaming Ding , Chiu Man Ho

Diffusion-based image super-resolution (SR) methods are mainly limited by the low inference speed due to the requirements of hundreds or even thousands of sampling steps. Existing acceleration sampling techniques inevitably sacrifice…

计算机视觉与模式识别 · 计算机科学 2023-10-19 Zongsheng Yue , Jianyi Wang , Chen Change Loy

Rotating-view thick-slice acquisition is highly SNR-efficient for mesoscale diffusion MRI (dMRI) but requires numerous rotating views to satisfy Nyquist sampling, resulting in long scan time. We propose a self-supervised Spatial-Angular…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Yinzhe Wu , Hongyu Rui , Fanwen Wang , Jiahao Huang , Zi Wang , Guang Yang

Recent Reference-Based image super-resolution (RefSR) has improved SOTA deep methods introducing attention mechanisms to enhance low-resolution images by transferring high-resolution textures from a reference high-resolution image. The main…

计算机视觉与模式识别 · 计算机科学 2023-10-03 Esteban Reyes-Saldana , Mariano Rivera

Super-resolution (SR) is a key technique for improving the visual quality of video content by increasing its spatial resolution while reconstructing fine details. SR has been employed in many applications including video streaming, where…

图像与视频处理 · 电气工程与系统科学 2025-07-10 Yuxuan Jiang , Jakub Nawała , Chen Feng , Fan Zhang , Xiaoqing Zhu , Joel Sole , David Bull

Recent advancements in visual autoregressive models (VAR) have demonstrated their effectiveness in image generation, highlighting their potential for real-world image super-resolution (Real-ISR). However, adapting VAR for ISR presents…

计算机视觉与模式识别 · 计算机科学 2026-04-24 Yixuan Zhu , Shilin Ma , Haolin Wang , Ao Li , Yanzhe Jing , Yansong Tang , Lei Chen , Jiwen Lu , Jie Zhou

In recent years, attention mechanisms have been exploited in single image super-resolution (SISR), achieving impressive reconstruction results. However, these advancements are still limited by the reliance on simple training strategies and…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Yuxuan Jiang , Chengxi Zeng , Siyue Teng , Fan Zhang , Xiaoqing Zhu , Joel Sole , David Bull

Large-scale pre-trained diffusion models have been extensively adopted for real-world image Super-Resolution because of their powerful generative priors through textual guidance. However, when super-resolving high-resolution images with…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Qingji Dong , Hang Dong , Mingqin Chen , Rui Zhang , Yitong Wang

While super-resolution (SR) methods based on diffusion models (DM) have demonstrated inspiring performance, their deployment is impeded due to the heavy request of memory and computation. Recent researchers apply two kinds of methods to…

计算机视觉与模式识别 · 计算机科学 2025-02-05 Kai Liu , Kaicheng Yang , Zheng Chen , Zhiteng Li , Yong Guo , Wenbo Li , Linghe Kong , Yulun Zhang