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Image restoration is a classic low-level problem aimed at recovering high-quality images from low-quality images with various degradations such as blur, noise, rain, haze, etc. However, due to the inherent complexity and non-uniqueness of…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Yuhong Zhang , Hengsheng Zhang , Xinning Chai , Zhengxue Cheng , Rong Xie , Li Song , Wenjun Zhang

Existing real-world super-resolution (RSR) methods based on generative priors have achieved remarkable progress in producing high-quality and globally consistent reconstructions. However, they often struggle to recover fine-grained details…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Zixin Guo , Kai Zhao , Luyan Zhang

Generative depth estimation methods leverage the rich visual priors stored in pre-trained text-to-image diffusion models, demonstrating astonishing zero-shot capability. However, parameter updates during training lead to catastrophic…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Hongkai Lin , Dingkang Liang , Mingyang Du , Xin Zhou , Xiang Bai

Unsupervised image-to-image translation aims to learn the translation between two visual domains without paired data. Despite the recent progress in image translation models, it remains challenging to build mappings between complex domains…

Computer Vision and Pattern Recognition · Computer Science 2022-04-08 Shuai Yang , Liming Jiang , Ziwei Liu , Chen Change Loy

Despite substantial progress, all-in-one image restoration (IR) grapples with persistent challenges in handling intricate real-world degradations. This paper introduces MPerceiver: a novel multimodal prompt learning approach that harnesses…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Yuang Ai , Huaibo Huang , Xiaoqiang Zhou , Jiexiang Wang , Ran He

Natural images captured by mobile devices often suffer from multiple types of degradation, such as noise, blur, and low light. Traditional image restoration methods require manual selection of specific tasks, algorithms, and execution…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Haoyu Chen , Wenbo Li , Jinjin Gu , Jingjing Ren , Sixiang Chen , Tian Ye , Renjing Pei , Kaiwen Zhou , Fenglong Song , Lei Zhu

Most existing face image Super-Resolution (SR) methods assume that the Low-Resolution (LR) images were artificially downsampled from High-Resolution (HR) images with bicubic interpolation. This operation changes the natural image…

Computer Vision and Pattern Recognition · Computer Science 2021-02-08 Andreas Aakerberg , Kamal Nasrollahi , Thomas B. Moeslund

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…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Chenglu Pan , Xiaogang Xu , Ganggui Ding , Yunke Zhang , Wenbo Li , Jiarong Xu , Qingbiao Wu

This paper proposes an explicit way to optimize the super-resolution network for generating visually pleasing images. The previous approaches use several loss functions which is hard to interpret and has the implicit relationships to…

Image and Video Processing · Electrical Eng. & Systems 2020-09-02 Tomoki Yoshida , Kazutoshi Akita , Muhammad Haris , Norimichi Ukita

The goal of image restoration (IR), a fundamental issue in computer vision, is to restore a high-quality (HQ) image from its degraded low-quality (LQ) observation. Multiple HQ solutions may correspond to an LQ input in this poorly posed…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Zeyu Xiao , Jiawang Bai , Zhihe Lu , Zhiwei Xiong

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…

Computer Vision and Pattern Recognition · Computer Science 2019-01-17 Soumya Shubhra Ghosh , Yang Hua , Sankha Subhra Mukherjee , Neil Robertson

Recent image restoration methods can be broadly categorized into two classes: (1) regression methods that recover the rough structure of the original image without synthesizing high-frequency details and (2) generative methods that…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Hwayoon Lee , Kyoungkook Kang , Hyeongmin Lee , Seung-Hwan Baek , Sunghyun Cho

Bridge models in image restoration construct a diffusion process from degraded to clear images. However, existing methods typically require training a bridge model from scratch for each specific type of degradation, resulting in high…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Hanting Wang , Tao Jin , Wang Lin , Shulei Wang , Hai Huang , Shengpeng Ji , Zhou Zhao

Recent text-to-video models have demonstrated strong temporal generation capabilities, yet their potential for image restoration remains underexplored. In this work, we repurpose CogVideo for progressive visual restoration tasks by…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Peng Kang , Xijun Wang , Yu Yuan

We propose an end-to-end trainable image compression framework with a multi-scale and context-adaptive entropy model, especially for low bitrate compression. Due to the success of autoregressive priors in probabilistic generative model, the…

Image and Video Processing · Electrical Eng. & Systems 2019-10-18 Jing Zhou , Sihan Wen , Akira Nakagawa , Kimihiko Kazui , Zhiming Tan

Perceptual image super-resolution (SR) methods restore degraded images and produce sharp outputs. In practice, those outputs are usually recompressed for storage and transmission. Ignoring recompression is suboptimal as the downstream codec…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Mingwei He , Tongda Xu , Xingtong Ge , Ming Sun , Chao Zhou , Yan Wang

Image restoration tasks have witnessed great performance improvement in recent years by developing large deep models. Despite the outstanding performance, the heavy computation demanded by the deep models has restricted the application of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Junghun Oh , Heewon Kim , Seungjun Nah , Cheeun Hong , Jonghyun Choi , Kyoung Mu Lee

Multimodal large language models (MLLMs) extend the success of language models to visual understanding, and recent efforts have sought to build unified MLLMs that support both understanding and generation. However, constructing such models…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Hanyu Wang , Jiaming Han , Ziyan Yang , Qi Zhao , Shanchuan Lin , Xiangyu Yue , Abhinav Shrivastava , Zhenheng Yang , Hao Chen

Recently, it has been demonstrated that deep neural networks can significantly improve the performance of single image super-resolution (SISR). Numerous studies have concentrated on raising the quantitative quality of super-resolved (SR)…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 Zheng Hui , Jie Li , Xinbo Gao , Xiumei Wang

Feed-forward 3D reconstruction from sparse, low-resolution (LR) images is a crucial capability for real-world applications, such as autonomous driving and embodied AI. However, existing methods often fail to recover fine texture details.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Xinyuan Hu , Changyue Shi , Chuxiao Yang , Minghao Chen , Jiajun Ding , Tao Wei , Chen Wei , Zhou Yu , Min Tan