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Long video understanding is heavily bottlenecked by a rigid one-shot paradigm: existing methods either densely encode videos at prohibitive memory and latency costs, or aggressively compress them into sparse frame sets that irreversibly…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Xiao Yang , Yingzhe Ma , Haoxuan Yu , Zixin Li , Ning Qin

Human action recognition in videos is a critical task with significant implications for numerous applications, including surveillance, sports analytics, and healthcare. The challenge lies in creating models that are both precise in their…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Yufei Xie

Convolutional operations have two limitations: (1) do not explicitly model where to focus as the same filter is applied to all the positions, and (2) are unsuitable for modeling long-range dependencies as they only operate on a small…

Computer Vision and Pattern Recognition · Computer Science 2020-08-03 Xiaofang Wang , Xuehan Xiong , Maxim Neumann , AJ Piergiovanni , Michael S. Ryoo , Anelia Angelova , Kris M. Kitani , Wei Hua

Querying the content of images, video, and other non-textual data sources requires expensive content extraction methods. Modern extraction techniques are based on deep convolutional neural networks (CNNs) and can classify objects within…

Databases · Computer Science 2019-04-23 Michael R. Anderson , Michael Cafarella , German Ros , Thomas F. Wenisch

The state of the art in video understanding suffers from two problems: (1) The major part of reasoning is performed locally in the video, therefore, it misses important relationships within actions that span several seconds. (2) While there…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Mohammadreza Zolfaghari , Kamaljeet Singh , Thomas Brox

Convolutional neural network inference on video input is computationally expensive and requires high memory bandwidth. Recently, DeltaCNN managed to reduce the cost by only processing pixels with significant updates over the previous frame.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Mathias Parger , Chengcheng Tang , Thomas Neff , Christopher D. Twigg , Cem Keskin , Robert Wang , Markus Steinberger

We propose a fast partial video copy detection framework in this paper. In this framework all frame features of the reference videos are organized in a KNN searchable database. Instead of scanning all reference videos, the query video…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Weijun Tan , Hongwei Guo , Rushuai Liu

Recently, with the emergence of large language models, multimodal LLMs have demonstrated exceptional capabilities in image and video modalities. Despite advancements in video comprehension, the substantial computational demands of long…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Ming Nie , Chunwei Wang , Hang Xu , Li Zhang

In this paper we describe a video surveillance system able to detect traffic events in videos acquired by fixed videocameras on highways. The events of interest consist in a specific sequence of situations that occur in the video, as for…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Matteo Tiezzi , Stefano Melacci , Marco Maggini , Angelo Frosini

Current state-of-the-art models for video action recognition are mostly based on expensive 3D ConvNets. This results in a need for large GPU clusters to train and evaluate such architectures. To address this problem, we present a…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Quanfu Fan , Chun-Fu Chen , Hilde Kuehne , Marco Pistoia , David Cox

Understanding traffic density from large-scale web camera (webcam) videos is a challenging problem because such videos have low spatial and temporal resolution, high occlusion and large perspective. To deeply understand traffic density, we…

Computer Vision and Pattern Recognition · Computer Science 2017-07-04 Shanghang Zhang , Guanhang Wu , João P. Costeira , José M. F. Moura

Object detection in videos has drawn increasing attention since it is more practical in real scenarios. Most of the deep learning methods use CNNs to process each decoded frame in a video stream individually. However, the free of charge yet…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Shiyao Wang , Hongchao Lu , Zhidong Deng

This project aims to develop a robust video surveillance system, which can segment videos into smaller clips based on the detection of activities. It uses CCTV footage, for example, to record only major events-like the appearance of a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Shahran Rahman Alve

Convolutional neural networks (CNNs) have shown great capability of solving various artificial intelligence tasks. However, the increasing model size has raised challenges in employing them in resource-limited applications. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2018-09-06 Hongyang Gao , Zhengyang Wang , Shuiwang Ji

As communication protocols evolve, datacenter network utilization increases. As a result, congestion is more frequent, causing higher latency and packet loss. Combined with the increasing complexity of workloads, manual design of congestion…

Networking and Internet Architecture · Computer Science 2024-06-04 Benjamin Fuhrer , Yuval Shpigelman , Chen Tessler , Shie Mannor , Gal Chechik , Eitan Zahavi , Gal Dalal

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

Human actions often involve complex interactions across several inter-related objects in the scene. However, existing approaches to fine-grained video understanding or visual relationship detection often rely on single object representation…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Chih-Yao Ma , Asim Kadav , Iain Melvin , Zsolt Kira , Ghassan AlRegib , Hans Peter Graf

Previous approaches for video summarization mainly concentrate on finding the most diverse and representative visual contents as video summary without considering the user's preference. This paper addresses the task of query-focused video…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Shuwen Xiao , Zhou Zhao , Zijian Zhang , Xiaohui Yan , Min Yang

Real-time video surveillance has become a crucial technology for smart cities, made possible through the large-scale deployment of mobile and fixed video cameras. In this paper, we propose situation-aware streaming, for real-time…

Networking and Internet Architecture · Computer Science 2022-04-06 Suvadip Batabyal , Ozgur Ercetin

In this work, we propose a fast content-based video querying system for large-scale video search. The proposed system is distinguished from similar works with two major contributions. First contribution is superiority of joint usage of…

Computer Vision and Pattern Recognition · Computer Science 2016-07-26 Ersin Esen , Savas Ozkan , Ilkay Atil