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Recent advances in video super-resolution have shown that convolutional neural networks combined with motion compensation are able to merge information from multiple low-resolution (LR) frames to generate high-quality images. Current…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Mehdi S. M. Sajjadi , Raviteja Vemulapalli , Matthew Brown

Extracting accurate foreground objects from a scene is an essential step for many video applications. Traditional background subtraction algorithms can generate coarse estimates, but generating high quality masks requires professional…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Xiran Wang , Jason Juang , Stanley H. Chan

The goal of this paper is to discover, segment, and track independently moving objects in complex visual scenes. Previous approaches have explored the use of optical flow for motion segmentation, leading to imperfect predictions due to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Junyu Xie , Weidi Xie , Andrew Zisserman

This paper addresses the problem of single image de-raining, that is, the task of recovering clean and rain-free background scenes from a single image obscured by a rainy artifact. Although recent advances adopt real-world time-lapse data…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Jaehoon Cho , Seungryong Kim , Kwanghoon Sohn

Vision-Language Models (VLMs) are trained on image-text pairs collected under canonical visual conditions and achieve strong performance on multimodal tasks. However, their robustness to real-world weather conditions, and the stability of…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Chengyin Hu , Xiang Chen , Zhe Jia , Weiwen Shi , Fengyu Zhang , Jiujiang Guo , Yiwei Wei

Temporal grounding, which localizes video moments related to a natural language query, is a core problem of vision-language learning and video understanding. To encode video moments of varying lengths, recent methods employ a multi-level…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Thong Thanh Nguyen , Yi Bin , Xiaobao Wu , Zhiyuan Hu , Cong-Duy T Nguyen , See-Kiong Ng , Anh Tuan Luu

Temporal consistency is the key challenge of video depth estimation. Previous works are based on additional optical flow or camera poses, which is time-consuming. By contrast, we derive consistency with less information. Since videos…

Computer Vision and Pattern Recognition · Computer Science 2022-08-19 Yiran Wang , Zhiyu Pan , Xingyi Li , Zhiguo Cao , Ke Xian , Jianming Zhang

The goal of single-image deraining is to restore the rain-free background scenes of an image degraded by rain streaks and rain accumulation. The early single-image deraining methods employ a cost function, where various priors are developed…

Image and Video Processing · Electrical Eng. & Systems 2019-12-30 Wenhan Yang , Robby T. Tan , Shiqi Wang , Yuming Fang , Jiaying Liu

Aiming at the problem that the current video anomaly detection cannot fully use the temporal information and ignore the diversity of normal behavior, an anomaly detection method is proposed to integrate the spatiotemporal information of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Chao Hu , Liqiang Zhu

In computer vision applications, the visibility of the video content is crucial to perform analysis for better accuracy. The visibility can be affected by several atmospheric interferences in challenging weather-one of them is the…

Image and Video Processing · Electrical Eng. & Systems 2020-07-13 Muhammad Rafiqul Islam , Manoranjan Paul

Video question-answering is a fundamental task in the field of video understanding. Although current vision--language models (VLMs) equipped with Video Transformers have enabled temporal modeling and yielded superior results, they are at…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Wei Han , Hui Chen , Min-Yen Kan , Soujanya Poria

Single image rain streak removal is an extremely challenging problem due to the presence of non-uniform rain densities in images. We present a novel density-aware multi-stream densely connected convolutional neural network-based algorithm,…

Computer Vision and Pattern Recognition · Computer Science 2018-02-22 He Zhang , Vishal M. Patel

Rain streaks can severely degrade the visibility, which causes many current computer vision algorithms fail to work. So it is necessary to remove the rain from images. We propose a novel deep network architecture based on deep convolutional…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Xia Li , Jianlong Wu , Zhouchen Lin , Hong Liu , Hongbin Zha

Towards intelligent image editing, object removal should eliminate both the target object and its causal visual artifacts, such as shadows and reflections. However, existing image appearance-based methods either follow strictly mask-aligned…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Zixin Zhu , Haoxiang Li , Xuelu Feng , He Wu , Chunming Qiao , Junsong Yuan

Underwater video pairs are fairly difficult to obtain due to the complex underwater imaging. In this case, most existing video underwater enhancement methods are performed by directly applying the single-image enhancement model frame by…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Qi Zhu , Jingyi Zhang , Naishan Zheng , Wei Yu , Jinghao Zhang , Deyi Ji , Feng Zhao

Restoring clear frames from rainy videos presents a significant challenge due to the rapid motion of rain streaks. Traditional frame-based visual sensors, which capture scene content synchronously, struggle to capture the fast-moving…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Hanwen Liang , Xian Zhong , Wenxuan Liu , Yajing Zheng , Wenxin Huang , Zhaofei Yu , Tiejun Huang

Rain streaks significantly decrease the visibility of captured images and are also a stumbling block that restricts the performance of subsequent computer vision applications. The existing deep learning-based image deraining methods employ…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Zhiying Jiang , Risheng Liu , Shuzhou Yang , Zengxi Zhang , Xin Fan

While single image shadow detection has been improving rapidly in recent years, video shadow detection remains a challenging task due to data scarcity and the difficulty in modelling temporal consistency. The current video shadow detection…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Shilin Hu , Hieu Le , Dimitris Samaras

Rain effect in images typically is annoying for many multimedia and computer vision tasks. For removing rain effect from a single image, deep leaning techniques have been attracting considerable attentions. This paper designs a novel…

Computer Vision and Pattern Recognition · Computer Science 2018-04-10 Siyuan LI , Wenqi Ren , Jiawan Zhang , Jinke Yu , Xiaojie Guo

Rain removal plays an important role in the restoration of degraded images. Recently, data-driven methods have achieved remarkable success. However, these approaches neglect that the appearance of rain is often accompanied by low light…

Image and Video Processing · Electrical Eng. & Systems 2021-10-19 Yecong Wan , Yuanshuo Cheng , Mingwen Shao