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Diffusion models have demonstrated promising performance in real-world video super-resolution (VSR). However, the dozens of sampling steps they require, make inference extremely slow. Sampling acceleration techniques, particularly…

Computer Vision and Pattern Recognition · Computer Science 2025-11-07 Zheng Chen , Zichen Zou , Kewei Zhang , Xiongfei Su , Xin Yuan , Yong Guo , Yulun Zhang

Real-world low-resolution (LR) videos have diverse and complex degradations, imposing great challenges on video super-resolution (VSR) algorithms to reproduce their high-resolution (HR) counterparts with high quality. Recently, the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Xi Yang , Chenhang He , Jianqi Ma , Lei Zhang

Single image super-resolution (SISR), which aims to reconstruct a high-resolution (HR) image from a low-resolution (LR) observation, has been an active research topic in the area of image processing in recent decades. Particularly, deep…

Image and Video Processing · Electrical Eng. & Systems 2021-03-04 Honggang Chen , Xiaohai He , Linbo Qing , Yuanyuan Wu , Chao Ren , Ce Zhu

Diffusion models have demonstrated remarkable efficacy in generating high-quality samples. Existing diffusion-based image restoration algorithms exploit pre-trained diffusion models to leverage data priors, yet they still preserve elements…

Image and Video Processing · Electrical Eng. & Systems 2024-08-07 Hongjie Wu , Linchao He , Mingqin Zhang , Dongdong Chen , Kunming Luo , Mengting Luo , Ji-Zhe Zhou , Hu Chen , Jiancheng Lv

Image restoration aims to enhance low quality images, producing high quality images that exhibit natural visual characteristics and fine semantic attributes. Recently, the diffusion model has emerged as a powerful technique for image…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Jiangtong Tan , Feng Zhao

The task of single image super-resolution (SISR) aims at reconstructing a high-resolution (HR) image from a low-resolution (LR) image. Although significant progress has been made by deep learning models, they are trained on synthetic paired…

Image and Video Processing · Electrical Eng. & Systems 2019-10-15 Zhen Han , Enyan Dai , Xu Jia , Xiaoying Ren , Shuaijun Chen , Chunjing Xu , Jianzhuang Liu , Qi Tian

In recent years, diffusion models have emerged as a superior alternative to generative adversarial networks (GANs) for high-fidelity image generation, with wide applications in text-to-image generation, image-to-image translation, and…

Image and Video Processing · Electrical Eng. & Systems 2026-05-08 Lorenzo Aloisi , Luigi Sigillo , Aurelio Uncini , Danilo Comminiello

We present a novel diffusion-based approach for coherent 3D scene reconstruction from a single RGB image. Our method utilizes an image-conditioned 3D scene diffusion model to simultaneously denoise the 3D poses and geometries of all objects…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Manuel Dahnert , Angela Dai , Norman Müller , Matthias Nießner

Most conventional supervised super-resolution (SR) algorithms assume that low-resolution (LR) data is obtained by downscaling high-resolution (HR) data with a fixed known kernel, but such an assumption often does not hold in real scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Suyoung Lee , Myungsub Choi , Kyoung Mu Lee

As deep learning technology continues to advance, image generation models, especially models like Stable Diffusion, are finding increasingly widespread application in visual arts creation. However, these models often face challenges such as…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Chengcheng Feng , Mu He , Qiuyu Tian , Haojie Yin , Xiaofang Zhao , Hongwei Tang , Xingqiang Wei

The colorization of grayscale images is a complex and subjective task with significant challenges. Despite recent progress in employing large-scale datasets with deep neural networks, difficulties with controllability and visual quality…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Nir Zabari , Aharon Azulay , Alexey Gorkor , Tavi Halperin , Ohad Fried

3D Gaussian Splatting (3DGS) enables high-quality novel view synthesis, motivating interest in generating higher-resolution renders than those available during training. A natural strategy is to apply super-resolution (SR) to low-resolution…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Pranav Asthana , Alex Hanson , Allen Tu , Tom Goldstein , Matthias Zwicker , Amitabh Varshney

In real-world single image super-resolution (SISR) task, the low-resolution image suffers more complicated degradations, not only downsampled by unknown kernels. However, existing SISR methods are generally studied with the synthetic…

Image and Video Processing · Electrical Eng. & Systems 2020-09-15 Guanghao Yin , Shouqian Sun , Chao Li , Xin Min

Previous super-resolution reconstruction (SR) works are always designed on the assumption that the degradation operation is fixed, such as bicubic downsampling. However, as for remote sensing images, some unexpected factors can cause the…

Image and Video Processing · Electrical Eng. & Systems 2023-05-23 Mengze Xu , Jie Ma , Yuanyuan Zhu

Super resolution offers a way to harness medium even lowresolution but historically valuable remote sensing image archives. Generative models, especially diffusion models, have recently been applied to remote sensing super resolution…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Songxi Yang , Tang Sui , Qunying Huang

Recent advances in self-supervised learning, predominantly studied in high-level visual tasks, have been explored in low-level image processing. This paper introduces a novel self-supervised constraint for single image super-resolution,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Gang Wu , Junjun Jiang , Kui Jiang , Xianming Liu

Shadows are a common factor degrading image quality. Single-image shadow removal (SR), particularly under challenging indirect illumination, is hampered by non-uniform content degradation and inherent ambiguity. Consequently, traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Yu-Fan Lin , Chia-Ming Lee , Chih-Chung Hsu

It is widely acknowledged that single image super-resolution (SISR) methods would not perform well if the assumed degradation model deviates from those in real images. Although several degradation models take additional factors into…

Image and Video Processing · Electrical Eng. & Systems 2021-10-01 Kai Zhang , Jingyun Liang , Luc Van Gool , Radu Timofte

Latent diffusion models (LDMs) dominate high-quality image generation, yet integrating representation learning with generative modeling remains a challenge. We introduce a novel generative image modeling framework that seamlessly bridges…

Computer Vision and Pattern Recognition · Computer Science 2026-01-23 Theodoros Kouzelis , Efstathios Karypidis , Ioannis Kakogeorgiou , Spyros Gidaris , Nikos Komodakis

Recently, diffusion models (DMs) have been increasingly used in audio processing tasks, including speech super-resolution (SR), which aims to restore high-frequency content given low-resolution speech utterances. This is commonly achieved…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-22 Chin-Yun Yu , Sung-Lin Yeh , György Fazekas , Hao Tang
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