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Quantum-inspired singular value decomposition (SVD) is a technique to perform SVD in logarithmic time with respect to the dimension of a matrix, given access to the matrix embedded in a segment-tree data structure. The speedup is possible…

Quantum Physics · Physics 2022-09-27 Iori Takeda , Souichi Takahira , Kosuke Mitarai , Keisuke Fujii

Recently, various view synthesis distortion estimation models have been studied to better serve for 3-D video coding. However, they can hardly model the relationship quantitatively among different levels of depth changes, texture…

Image and Video Processing · Electrical Eng. & Systems 2022-01-10 Jian Jin , Xingxing Zhang , Lili Meng , Weisi Lin , Jie Liang , Huaxiang Zhang , Yao Zhao

We study generative super-resolution (SR) in real-world scenarios where content and degradations vary across domains, genres, and segments. For example, images and videos may alternate between text overlays, fast motion, smooth cartoons,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Jiaqi Guo , Mingzhen Li , Haohong Wang , Aggelos K. Katsaggelos

Video super-resolution (VSR) approaches have shown impressive temporal consistency in upsampled videos. However, these approaches tend to generate blurrier results than their image counterparts as they are limited in their generative…

Computer Vision and Pattern Recognition · Computer Science 2024-05-03 Yiran Xu , Taesung Park , Richard Zhang , Yang Zhou , Eli Shechtman , Feng Liu , Jia-Bin Huang , Difan Liu

Content based providers transmits real time complex signal such as video data from one region to another. During this transmission process, the signals usually end up distorted or degraded where the actual information present in the video…

Multimedia · Computer Science 2022-04-15 Renith G , Harikrishna Warrier , Yogesh Gupta

In spite of the success on benchmark datasets, most advanced face super-resolution models perform poorly in real scenarios since the remarkable domain gap between the real images and the synthesized training pairs. To tackle this problem,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Xianfang Zeng , Jiangning Zhang , Liang Liu , Guangzhong Tian , Yong Liu

High-resolution (HR) videos play a crucial role in many computer vision applications. Although existing video restoration (VR) methods can significantly enhance video quality by exploiting temporal information across video frames, they are…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Mary Aiyetigbo , Wanqi Yuan , Feng Luo , Nianyi Li

Traditional blind image SR methods need to model real-world degradations precisely. Consequently, current research struggles with this dilemma by assuming idealized degradations, which leads to limited applicability to actual user data.…

Image and Video Processing · Electrical Eng. & Systems 2024-04-30 Brian B. Moser , Ahmed Anwar , Federico Raue , Stanislav Frolov , Andreas Dengel

Video analysis tasks such as action recognition have received increasing research interest with growing applications in fields such as smart healthcare, thanks to the introduction of large-scale datasets and deep learning-based…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Yuecong Xu , Haozhi Cao , Zhenghua Chen , Xiaoli Li , Lihua Xie , Jianfei Yang

In this paper, we address the problem of enhancing perceptual quality in video super-resolution (VSR) using Diffusion Models (DMs) while ensuring temporal consistency among frames. We present StableVSR, a VSR method based on DMs that can…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Claudio Rota , Marco Buzzelli , Joost van de Weijer

Deep convolutional neural network based image super-resolution (SR) models have shown superior performance in recovering the underlying high resolution (HR) images from low resolution (LR) images obtained from the predefined downscaling…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Wanjie Sun , Zhenzhong Chen

Almost all previous text-to-video retrieval works ideally assume that videos are pre-trimmed with short durations containing solely text-related content. However, in practice, videos are typically untrimmed in long durations with much more…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Jianfeng Dong , Lei Huang , Daizong Liu , Xianke Chen , Xun Yang , Changting Lin , Xun Wang , Meng Wang

Real-world image super-resolution is a practical image restoration problem that aims to obtain high-quality images from in-the-wild input, has recently received considerable attention with regard to its tremendous application potentials.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Hao Li , Jinghui Qin , Zhijing Yang , Pengxu Wei , Jinshan Pan , Liang Lin , Yukai Shi

Face video super-resolution algorithm aims to reconstruct realistic face details through continuous input video sequences. However, existing video processing algorithms usually contain redundant parameters to guarantee different…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Feng Yu , He Li , Sige Bian , Yongming Tang

Super-Resolution (SR) is a critical task in computer vision, focusing on reconstructing high-resolution (HR) images from low-resolution (LR) inputs. The field has seen significant progress through various challenges, particularly in…

Image and Video Processing · Electrical Eng. & Systems 2025-07-02 Babak Naderi , Ross Cutler , Juhee Cho , Nabakumar Khongbantabam , Dejan Ivkovic

Super-resolution (SR) is an ill-posed problem, which means that infinitely many high-resolution (HR) images can be degraded to the same low-resolution (LR) image. To study the one-to-many stochastic SR mapping, we implicitly represent the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Hangqi Zhou , Chao Huang , Shangqi Gao , Xiahai Zhuang

Deep Convolution Neural Networks (CNN) have achieved significant performance on single image super-resolution (SR) recently. However, existing CNN-based methods use artificially synthetic low-resolution (LR) and high-resolution (HR) image…

Computer Vision and Pattern Recognition · Computer Science 2018-12-14 Tianyu Zhao , Wenqi Ren , Changqing Zhang , Dongwei Ren , Qinghua Hu

The training of real-world super-resolution reconstruction models heavily relies on datasets that reflect real-world degradation patterns. Extracting and modeling degradation patterns for super-resolution reconstruction using only…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Yiyang Tie , Hong Zhu , Yunyun Luo , Jing Shi

Temporal modeling is crucial for video super-resolution. Most of the video super-resolution methods adopt the optical flow or deformable convolution for explicitly motion compensation. However, such temporal modeling techniques increase the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Takashi Isobe , Xu Jia , Xin Tao , Changlin Li , Ruihuang Li , Yongjie Shi , Jing Mu , Huchuan Lu , Yu-Wing Tai

Most single image super-resolution (SR) methods are developed on synthetic low-resolution (LR) and high-resolution (HR) image pairs, which are simulated by a predetermined degradation operation, e.g., bicubic downsampling. However, these…

Image and Video Processing · Electrical Eng. & Systems 2021-10-22 Rui Ma , Johnathan Czernik , Xian Du