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The scalability of video understanding models is increasingly limited by the prohibitive storage and computational costs of large-scale video datasets. While data synthesis has improved data efficiency in the image domain, its extension to…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Shaobo Wang , Tianle Niu , Runkang Yang , Deshan Liu , Xu He , Zichen Wen , Conghui He , Xuming Hu , Linfeng Zhang

State-of-the-art methods for video action recognition commonly use an ensemble of two networks: the spatial stream, which takes RGB frames as input, and the temporal stream, which takes optical flow as input. In recent work, both of these…

计算机视觉与模式识别 · 计算机科学 2019-02-07 Jonathan C. Stroud , David A. Ross , Chen Sun , Jia Deng , Rahul Sukthankar

In this paper, we propose a new framework for compressive video sensing (CVS) that exploits the inherent spatial and temporal redundancies of a video sequence, effectively. The proposed method splits the video sequence into the key and…

多媒体 · 计算机科学 2015-09-01 Nasser Eslahi , Ali Aghagolzadeh , Seyed Mehdi Hosseini Andargoli

The strong temporal consistency of surveillance video enables compelling compression performance with traditional methods, but downstream vision applications operate on decoded image frames with a high data rate. Since it is not…

多媒体 · 计算机科学 2024-02-09 Andrew C. Freeman , Ketan Mayer-Patel , Montek Singh

There is limited understanding of the information captured by deep spatiotemporal models in their intermediate representations. For example, while evidence suggests that action recognition algorithms are heavily influenced by visual…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Matthew Kowal , Mennatullah Siam , Md Amirul Islam , Neil D. B. Bruce , Richard P. Wildes , Konstantinos G. Derpanis

Efficient video architecture is the key to deploying video recognition systems on devices with limited computing resources. Unfortunately, existing video architectures are often computationally intensive and not suitable for such…

计算机视觉与模式识别 · 计算机科学 2021-12-10 Yifan Jiang , Xinyu Gong , Junru Wu , Humphrey Shi , Zhicheng Yan , Zhangyang Wang

Learned video compression (LVC) has witnessed remarkable advancements in recent years. Similar as the traditional video coding, LVC inherits motion estimation/compensation, residual coding and other modules, all of which are implemented…

图像与视频处理 · 电气工程与系统科学 2023-09-22 Yanbo Gao , Wenjia Huang , Shuai Li , Hui Yuan , Mao Ye , Siwei Ma

In this paper, we introduce a deep learning solution for video activity recognition that leverages an innovative combination of convolutional layers with a linear-complexity attention mechanism. Moreover, we introduce a novel quantization…

计算机视觉与模式识别 · 计算机科学 2025-05-27 Gabriele Lagani , Fabrizio Falchi , Claudio Gennaro , Giuseppe Amato

In computer vision, an entity such as an image or video is often represented as a set of instance vectors, which can be SIFT, motion, or deep learning feature vectors extracted from different parts of that entity. Thus, it is essential to…

计算机视觉与模式识别 · 计算机科学 2016-04-28 Jianxin Wu , Bin-Bin Gao , Guoqing Liu

Real-time video segmentation is a crucial task for many real-world applications such as autonomous driving and robot control. Since state-of-the-art semantic segmentation models are often too heavy for real-time applications despite their…

计算机视觉与模式识别 · 计算机科学 2022-12-16 Hyunsu Rhee , Dongchan Min , Sunil Hwang , Bruno Andreis , Sung Ju Hwang

Built on top of self-attention mechanisms, vision transformers have demonstrated remarkable performance on a variety of vision tasks recently. While achieving excellent performance, they still require relatively intensive computational cost…

计算机视觉与模式识别 · 计算机科学 2021-12-01 Lingchen Meng , Hengduo Li , Bor-Chun Chen , Shiyi Lan , Zuxuan Wu , Yu-Gang Jiang , Ser-Nam Lim

In long-video understanding, conventional uniform frame sampling often fails to capture key visual evidence, leading to degraded performance and increased hallucinations. To address this, recent agentic thinking-with-videos paradigms have…

Large vision-language models (LVLMs) excel at multimodal understanding but suffer from high computational costs due to redundant vision tokens. Existing pruning methods typically rely on single-layer attention scores to rank and prune…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Jintao Tong , Wenwei Jin , Pengda Qin , Anqi Li , Yixiong Zou , Yuhong Li , Yuhua Li , Ruixuan Li

Recent advances in single-frame object detection and segmentation techniques have motivated a wide range of works to extend these methods to process video streams. In this paper, we explore the idea of hard attention aimed for…

计算机视觉与模式识别 · 计算机科学 2019-08-21 Yuning Chai

Optimizing video inference efficiency has become increasingly important with the growing demand for video analysis in various fields. Some existing methods achieve high efficiency by explicit discard of spatial or temporal information,…

计算机视觉与模式识别 · 计算机科学 2023-09-18 Rui Deng , Qian Wu , Yuke Li , Haoran Fu

3D occupancy and scene flow offer a detailed and dynamic representation of 3D scene. Recognizing the sparsity and complexity of 3D space, previous vision-centric methods have employed implicit learning-based approaches to model spatial and…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Zhimin Liao , Ping Wei , Shuaijia Chen , Haoxuan Wang , Ziyang Ren

The creation of detailed 3D models is relevant for a wide range of applications such as navigation in three-dimensional space, construction planning or disaster assessment. However, the complex processing and long execution time for…

计算机视觉与模式识别 · 计算机科学 2021-10-25 Max Hermann , Thomas Pollok , Daniel Brommer , Dominic Zahn

360{\deg} videos a.k.a. spherical videos are getting popular among users nevertheless, omnidirectional view of these videos demands high bandwidth and processing power at the end devices. Recently proposed viewport aware streaming…

多媒体 · 计算机科学 2021-05-26 Chamara Kattadige , Kanchana Thilakarathna

Reasoning Video Object Segmentation (ReasonVOS) is a challenging task that requires stable object segmentation across video sequences using implicit and complex textual inputs. Previous methods fine-tune Multimodal Large Language Models…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Zhengtong Zhu , Jiaqing Fan , Zhixuan Liu , Fanzhang Li

Despite the steady progress in video analysis led by the adoption of convolutional neural networks (CNNs), the relative improvement has been less drastic as that in 2D static image classification. Three main challenges exist including…

计算机视觉与模式识别 · 计算机科学 2018-07-30 Saining Xie , Chen Sun , Jonathan Huang , Zhuowen Tu , Kevin Murphy