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Whether deterministic or stochastic, models can be viewed as functions designed to approximate a specific quantity of interest. We introduce Minimal Empirical Variance Aggregation (MEVA), a data-driven framework that integrates predictions…

Machine Learning · Computer Science 2025-03-04 Théo Bourdais , Houman Owhadi

CLIP4Clip model transferred from the CLIP has been the de-factor standard to solve the video clip retrieval task from frame-level input, triggering the surge of CLIP4Clip-based models in the video-text retrieval domain. In this work, we…

Information Retrieval · Computer Science 2024-06-11 Xiaolun Jing , Genke Yang , Jian Chu

Online processing of compressed videos to increase their resolutions attracts increasing and broad attention. Video Super-Resolution (VSR) using recurrent neural network architecture is a promising solution due to its efficient modeling of…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Hengsheng Zhang , Xueyi Zou , Jiaming Guo , Youliang Yan , Rong Xie , Li Song

Video compression has always been a popular research area, where many traditional and deep video compression methods have been proposed. These methods typically rely on signal prediction theory to enhance compression performance by…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Lv Tang , Xinfeng Zhang , Gai Zhang , Xiaoqi Ma

Understanding long videos requires extracting query-relevant information from long sequences under tight compute budgets. Existing text-then-LLM pipelines lose fine-grained visual cues, while video-based multimodal large language models…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Yufei Yin , Yuchen Xing , Qianke Meng , Minghao Chen , Yan Yang , Zhou Yu

Multi-headed Attention's (MHA) quadratic compute and linearly growing KV-cache make long-context transformers expensive to train and serve. Prior works such as Grouped Query Attention (GQA) and Multi-Latent Attention (MLA) shrink the cache,…

Computation and Language · Computer Science 2026-03-18 Tomas Figliolia , Nicholas Alonso , Rishi Iyer , Quentin Anthony , Beren Millidge

We propose a new Generative Adversarial Network for Compressed Video quality Enhancement (CVEGAN). The CVEGAN generator benefits from the use of a novel Mul2Res block (with multiple levels of residual learning branches), an enhanced…

Image and Video Processing · Electrical Eng. & Systems 2025-06-10 Di Ma , Fan Zhang , David R. Bull

Previous research has studied the task of segmenting cinematic videos into scenes and into narrative acts. However, these studies have overlooked the essential task of multimodal alignment and fusion for effectively and efficiently…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Najmeh Sadoughi , Xinyu Li , Avijit Vajpayee , David Fan , Bing Shuai , Hector Santos-Villalobos , Vimal Bhat , Rohith MV

In the video coding process, the perceived quality of a compressed video is evaluated by full-reference quality evaluation metrics. However, it is difficult to obtain reference videos with perfect quality. To solve this problem, it is…

Image and Video Processing · Electrical Eng. & Systems 2022-05-10 Liqun Lin , Zheng Wang , Jiachen He , Weiling Chen , Yiwen Xu , Tiesong Zhao

Recently, transformer-based approaches have shown promising results for semi-supervised video object segmentation. However, these approaches typically struggle on long videos due to increased GPU memory demands, as they frequently expand…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Abdelrahman Shaker , Syed Talal Wasim , Martin Danelljan , Salman Khan , Ming-Hsuan Yang , Fahad Shahbaz Khan

Video objection detection (VID) has been a rising research direction in recent years. A central issue of VID is the appearance degradation of video frames caused by fast motion. This problem is essentially ill-posed for a single frame.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Haiping Wu , Yuntao Chen , Naiyan Wang , Zhaoxiang Zhang

Video summarization aims to extract keyframes/shots from a long video. Previous methods mainly take diversity and representativeness of generated summaries as prior knowledge in algorithm design. In this paper, we formulate video…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Yudong Jiang , Kaixu Cui , Bo Peng , Changliang Xu

Video summarization aims to generate a concise representation of a video, capturing its essential content and key moments while reducing its overall length. Although several methods employ attention mechanisms to handle long-term…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Jaewon Son , Jaehun Park , Kwangsu Kim

Recent years have witnessed an increasing interest in end-to-end learned video compression. Most previous works explore temporal redundancy by detecting and compressing a motion map to warp the reference frame towards the target frame. Yet,…

Image and Video Processing · Electrical Eng. & Systems 2022-11-21 Ren Yang , Radu Timofte , Luc Van Gool

In video compression, most of the existing deep learning approaches concentrate on the visual quality of a single frame, while ignoring the useful priors as well as the temporal information of adjacent frames. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2019-01-16 Xiandong Meng , Xuan Deng , Shuyuan Zhu , Shuaicheng Liu , Chuan Wang , Chen Chen , Bing Zeng

We consider the challenging problem of zero-shot video object segmentation (VOS). That is, segmenting and tracking multiple moving objects within a video fully automatically, without any manual initialization. We treat this as a grouping…

Computer Vision and Pattern Recognition · Computer Science 2020-08-17 Shreyank N Gowda , Panagiotis Eustratiadis , Timothy Hospedales , Laura Sevilla-Lara

Recent deep-learning-based video compression methods brought coding gains over conventional codecs such as AVC and HEVC. However, learning-based codecs generally require considerable computation time and model complexity. In this paper, we…

Image and Video Processing · Electrical Eng. & Systems 2023-03-22 Hochang Rhee , Seyun Kim , Nam Ik Cho

We consider an online version of the robust Principle Component Analysis (PCA), which arises naturally in time-varying source separations such as video foreground-background separation. This paper proposes a compressive online robust PCA…

Information Theory · Computer Science 2017-05-30 Huynh Van Luong , Nikos Deligiannis , Jurgen Seiler , Soren Forchhammer , Andre Kaup

Multimodal video summarization requires visual features that align semantically with language generation. Traditional approaches rely on CNN features trained for object classification, which represent visual concepts as discrete categories…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Maham Nazir , Muhammad Aqeel , Richong Zhang , Francesco Setti

In learning vision-language representations from web-scale data, the contrastive language-image pre-training (CLIP) mechanism has demonstrated a remarkable performance in many vision tasks. However, its application to the widely studied…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Fengchuang Xing , Mingjie Li , Yuan-Gen Wang , Guopu Zhu , Xiaochun Cao