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Video super-resolution (VSR) approaches tend to have more components than the image counterparts as they need to exploit the additional temporal dimension. Complex designs are not uncommon. In this study, we wish to untangle the knots and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Kelvin C. K. Chan , Xintao Wang , Ke Yu , Chao Dong , Chen Change Loy

Diffusion-based super-resolution (SR) is a key component in video generation and video restoration, but is slow and expensive, limiting scalability to higher resolutions and longer videos. Our key insight is that many regions in video are…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Rohan Choudhury , Shanchuan Lin , Jianyi Wang , Hao Chen , Qi Zhao , Feng Cheng , Lu Jiang , Kris Kitani , Laszlo A. Jeni

In this paper, we consider the task of space-time video super-resolution (ST-VSR), namely, expanding a given source video to a higher frame rate and resolution simultaneously. However, most existing schemes either consider a fixed…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Yuantong Zhang , Daiqin Yang , Zhenzhong Chen , Wenpeng Ding

Video super-resolution (VSR) refers to the reconstruction of high-resolution (HR) video from the corresponding low-resolution (LR) video. Recently, VSR has received increasing attention. In this paper, we propose a novel dual dense…

Image and Video Processing · Electrical Eng. & Systems 2022-03-08 Guofang Li , Yonggui Zhu

This paper studies the problem of real-world video super-resolution (VSR) for animation videos, and reveals three key improvements for practical animation VSR. First, recent real-world super-resolution approaches typically rely on…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Yanze Wu , Xintao Wang , Gen Li , Ying Shan

Arbitrary-scale video super-resolution (AVSR) aims to enhance the resolution of video frames, potentially at various scaling factors, which presents several challenges regarding spatial detail reproduction, temporal consistency, and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-07 Wei Shang , Wanying Zhang , Shuhang Gu , Pengfei Zhu , Qinghua Hu , Dongwei Ren

Diffusion models learn strong image priors that can be leveraged to solve inverse problems like medical image reconstruction. However, for real-world applications such as 3D Computed Tomography (CT) imaging, directly training diffusion…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Taewon Yang , Jason Hu , Jeffrey A. Fessler , Liyue Shen

Compressed video super-resolution (SR) aims to generate high-resolution (HR) videos from the corresponding low-resolution (LR) compressed videos. Recently, some compressed video SR methods attempt to exploit the spatio-temporal information…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Qiang Zhu , Fan Zhang , Feiyu Chen , Shuyuan Zhu , David Bull , Bing Zeng

Diffusion-based Video Super-Resolution (VSR) is renowned for generating perceptually realistic videos, yet it grapples with maintaining detail consistency across frames due to stochastic fluctuations. The traditional approach of pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Qi Tang , Yao Zhao , Meiqin Liu , Chao Yao

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

Video super-resolution (VSR) aims to reconstruct a high-resolution (HR) video from a low-resolution (LR) counterpart. Achieving successful VSR requires producing realistic HR details and ensuring both spatial and temporal consistency. To…

Image and Video Processing · Electrical Eng. & Systems 2026-01-27 Janghyeok Han , Gyujin Sim , Geonung Kim , Hyun-seung Lee , Kyuha Choi , Youngseok Han , Sunghyun Cho

Recent single-image super-resolution (SISR) networks, which can adapt their network parameters to specific input images, have shown promising results by exploiting the information available within the input data as well as large external…

Computer Vision and Pattern Recognition · Computer Science 2021-03-19 Jinsu Yoo , Tae Hyun Kim

In recent years, real image super-resolution (SR) has achieved promising results due to the development of SR datasets and corresponding real SR methods. In contrast, the field of real video SR is lagging behind, especially for real raw…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Huanjing Yue , Zhiming Zhang , Jingyu Yang

The rich textual information of large vision-language models (VLMs) combined with the powerful generative prior of pre-trained text-to-image (T2I) diffusion models has achieved impressive performance in single-image super-resolution (SISR).…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Haodong He , Yancheng Bai , Rui Lan , Xu Duan , Lei Sun , Xiangxiang Chu , Gui-Song Xia

3D super-resolution aims to reconstruct high-fidelity 3D models from low-resolution (LR) multi-view images. Early studies primarily focused on single-image super-resolution (SISR) models to upsample LR images into high-resolution images.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Hyun-kyu Ko , Dongheok Park , Youngin Park , Byeonghyeon Lee , Juhee Han , Eunbyung Park

Different from the Single Image Super-Resolution(SISR) task, the key for Video Super-Resolution(VSR) task is to make full use of complementary information across frames to reconstruct the high-resolution sequence. Since images from…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Lielin Jiang , Na Wang , Qingqing Dang , Rui Liu , Baohua Lai

Diffusion-based video super-resolution (VSR) has recently achieved remarkable fidelity but still suffers from prohibitive sampling costs. While distribution matching distillation (DMD) can accelerate diffusion models toward one-step…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Zhengyao Lv , Menghan Xia , Xintao Wang , Kwan-Yee K. Wong

The state of the art in video super-resolution (SR) are techniques based on deep learning, but they perform poorly on real-world videos (see Figure 1). The reason is that training image-pairs are commonly created by downscaling a…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Noam Elron , Alex Itskovich , Shahar S. Yuval , Noam Levy

Stereo video super-resolution (SVSR) aims to enhance the spatial resolution of the low-resolution video by reconstructing the high-resolution video. The key challenges in SVSR are preserving the stereo-consistency and temporal-consistency,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Hassan Imani , Md Baharul Islam , Lai-Kuan Wong

Video restoration poses non-trivial challenges in maintaining fidelity while recovering temporally consistent details from unknown degradations in the wild. Despite recent advances in diffusion-based restoration, these methods often face…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Jianyi Wang , Zhijie Lin , Meng Wei , Yang Zhao , Ceyuan Yang , Fei Xiao , Chen Change Loy , Lu Jiang