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Recently deep neural networks (DNNs) have achieved significant success in real-world image super-resolution (SR). However, adversarial image samples with quasi-imperceptible noises could threaten deep learning SR models. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Jiutao Yue , Haofeng Li , Pengxu Wei , Guanbin Li , Liang Lin

High-precision scene parsing tasks, including image matting and dichotomous segmentation, aim to accurately predict masks with extremely fine details (such as hair). Most existing methods focus on salient, single foreground objects. While…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Haipeng Zhou , Zhaohu Xing , Hongqiu Wang , Jun Ma , Ping Li , Lei Zhu

Diffusion models (DMs) have demonstrated remarkable success in real-world image super-resolution (SR), yet their reliance on time-consuming multi-step sampling largely hinders their practical applications. While recent efforts have…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Jiaqi Xu , Wenbo Li , Haoze Sun , Fan Li , Zhixin Wang , Long Peng , Jingjing Ren , Haoran Yang , Xiaowei Hu , Renjing Pei , Pheng-Ann Heng

Image signals typically are defined on a rectangular two-dimensional grid. However, there exist scenarios where this is not fulfilled and where the image information only is available for a non-regular subset of pixel position. For…

Image and Video Processing · Electrical Eng. & Systems 2022-07-15 Jürgen Seiler , André Kaup

Due to the limitations of sensors, the transmission medium and the intrinsic properties of ultrasound, the quality of ultrasound imaging is always not ideal, especially its low spatial resolution. To remedy this situation, deep learning…

Image and Video Processing · Electrical Eng. & Systems 2020-12-29 Heng Liu , Jianyong Liu , Tao Tao , Shudong Hou , Jungong Han

Deep Convolutional Neural Networks (DCNNs) have exhibited impressive performance on image super-resolution tasks. However, these deep learning-based super-resolution methods perform poorly in real-world super-resolution tasks, where the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-04 Xiang Wang , Yimin Yang , Zhichang Guo , Zhili Zhou , Yu Liu , Qixiang Pang , Shan Du

Convolutional Sparse Coding (CSC) has been attracting more and more attention in recent years, for making full use of image global correlation to improve performance on various computer vision applications. However, very few studies focus…

Image and Video Processing · Electrical Eng. & Systems 2019-08-06 Menglei Zhang , Zhou Liu , Lei Yu

Real low-resolution (LR) face images contain degradations which are too varied and complex to be captured by known downsampling kernels and signal-independent noises. So, in order to successfully super-resolve real faces, a method needs to…

Image and Video Processing · Electrical Eng. & Systems 2022-02-09 Saurabh Goswami , Aakanksha , Rajagopalan A. N

Domain generalization aims to learn a generalizable model from a known source domain for various unknown target domains. It has been studied widely by domain randomization that transfers source images to different styles in spatial space…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Jiaxing Huang , Dayan Guan , Aoran Xiao , Shijian Lu

Image super-resolution (SR) is a field in computer vision that focuses on reconstructing high-resolution images from the respective low-resolution image. However, super-resolution is a well-known ill-posed problem as most methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Athiya Deviyani , Efe Sinan Hoplamaz , Alan Savio Paul

As a successful deep model applied in image super-resolution (SR), the Super-Resolution Convolutional Neural Network (SRCNN) has demonstrated superior performance to the previous hand-crafted models either in speed and restoration quality.…

Computer Vision and Pattern Recognition · Computer Science 2016-08-02 Chao Dong , Chen Change Loy , Xiaoou Tang

Existing methods for single image super-resolution (SR) are typically evaluated with synthetic degradation models such as bicubic or Gaussian downsampling. In this paper, we investigate SR from the perspective of camera lenses, named as…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Chang Chen , Zhiwei Xiong , Xinmei Tian , Zheng-Jun Zha , Feng Wu

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…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Esteban Reyes-Saldana , Mariano Rivera

Video Super-Resolution (VSR) aims to restore high-resolution (HR) videos from low-resolution (LR) videos. Existing VSR techniques usually recover HR frames by extracting pertinent textures from nearby frames with known degradation…

Image and Video Processing · Electrical Eng. & Systems 2023-01-02 Zhongwei Qiu , Huan Yang , Jianlong Fu , Daochang Liu , Chang Xu , Dongmei Fu

Single image super-resolution traditionally assumes spatially-invariant degradation models, yet real-world imaging systems exhibit complex distance-dependent effects including atmospheric scattering, depth-of-field variations, and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Tianhao Guo , Bingjie Lu , Feng Wang , Zhengyang Lu

Real-world image super-resolution (RISR) has received increased focus for improving the quality of SR images under unknown complex degradation. Existing methods rely on the heavy SR models to enhance low-resolution (LR) images of different…

Computer Vision and Pattern Recognition · Computer Science 2023-01-03 Junbo Qiao , Shaohui Lin , Yunlun Zhang , Wei Li , Jie Hu , Gaoqi He , Changbo Wang , Lizhuang Ma

Source-free domain adaptation (SFDA) aims to adapt a well-trained source model to an unlabelled target domain without accessing the source dataset, making it applicable in a variety of real-world scenarios. Existing SFDA methods ONLY assess…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Longxiang Tang , Kai Li , Chunming He , Yulun Zhang , Xiu Li

Despite substantial advances, single-image super-resolution (SISR) is always in a dilemma to reconstruct high-quality images with limited information from one input image, especially in realistic scenarios. In this paper, we establish a…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Pengxu Wei , Yujing Sun , Xingbei Guo , Chang Liu , Jie Chen , Xiangyang Ji , Liang Lin

The recent use of diffusion prior, enhanced by pre-trained text-image models, has markedly elevated the performance of image super-resolution (SR). To alleviate the huge computational cost required by pixel-based diffusion SR, latent-based…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Feng Luo , Jinxi Xiang , Jun Zhang , Xiao Han , Wei Yang

The recently rising markup-to-image generation poses greater challenges as compared to natural image generation, due to its low tolerance for errors as well as the complex sequence and context correlations between markup and rendered image.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Guojin Zhong , Jin Yuan , Pan Wang , Kailun Yang , Weili Guan , Zhiyong Li