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The surge in multimodal AI's success has sparked concerns over data privacy in vision-and-language tasks. While CLIP has revolutionized multimodal learning through joint training on images and text, its potential to unintentionally disclose…

机器学习 · 计算机科学 2024-03-04 Alyssa Huang , Peihan Liu , Ryumei Nakada , Linjun Zhang , Wanrong Zhang

Deep learning is now playing an important role in enhancing the performance of conventional hybrid video codecs. These learning-based methods typically require diverse and representative training material for optimization in order to…

图像与视频处理 · 电气工程与系统科学 2025-06-10 Jakub Nawała , Yuxuan Jiang , Fan Zhang , Xiaoqing Zhu , Joel Sole , David Bull

Video Anomaly Detection (VAD) plays a crucial role in modern surveillance systems, aiming to identify various anomalies in real-world situations. However, current benchmark datasets predominantly emphasize simple, single-frame anomalies…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Yoav Arad , Michael Werman

Despite the rapid progress, existing works on action understanding focus strictly on one type of action agent, which we call actor---a human adult, ignoring the diversity of actions performed by other actors. To overcome this narrow…

计算机视觉与模式识别 · 计算机科学 2017-05-01 Chenliang Xu , Caiming Xiong , Jason J. Corso

Person Re-Identification (ReID) aims to retrieve relevant individuals in non-overlapping camera images and has a wide range of applications in the field of public safety. In recent years, with the development of Vision Transformer (ViT) and…

计算机视觉与模式识别 · 计算机科学 2024-08-21 Bin Hu , Xinggang Wang , Wenyu Liu

We introduce the Action Transformer model for recognizing and localizing human actions in video clips. We repurpose a Transformer-style architecture to aggregate features from the spatiotemporal context around the person whose actions we…

计算机视觉与模式识别 · 计算机科学 2019-05-20 Rohit Girdhar , João Carreira , Carl Doersch , Andrew Zisserman

With recent advances in computer vision and graphics, it is now possible to generate videos with extremely realistic synthetic faces, even in real time. Countless applications are possible, some of which raise a legitimate alarm, calling…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Andreas Rössler , Davide Cozzolino , Luisa Verdoliva , Christian Riess , Justus Thies , Matthias Nießner

Understanding animals' behaviors is significant for a wide range of applications. However, existing animal behavior datasets have limitations in multiple aspects, including limited numbers of animal classes, data samples and provided tasks,…

计算机视觉与模式识别 · 计算机科学 2022-06-06 Xun Long Ng , Kian Eng Ong , Qichen Zheng , Yun Ni , Si Yong Yeo , Jun Liu

Video action detection requires dense spatio-temporal annotations, which are both challenging and expensive to obtain. However, real-world videos often vary in difficulty and may not require the same level of annotation. This paper analyzes…

计算机视觉与模式识别 · 计算机科学 2025-08-20 Aayush Rana , Akash Kumar , Vibhav Vineet , Yogesh S Rawat

Unmanned aerial vehicles (UAV) have been widely used in various fields, and their invasion of security and privacy has aroused social concern. Several detection and tracking systems for UAVs have been introduced in recent years, but most of…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Jie Zhao , Jingshu Zhang , Dongdong Li , Dong Wang

Streaming video clips with large-scale video tokens impede vision transformers (ViTs) for efficient recognition, especially in video action detection where sufficient spatiotemporal representations are required for precise actor…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Lei Chen , Zhan Tong , Yibing Song , Gangshan Wu , Limin Wang

While the significant advancements have made in the generation of deepfakes using deep learning technologies, its misuse is a well-known issue now. Deepfakes can cause severe security and privacy issues as they can be used to impersonate a…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Hasam Khalid , Shahroz Tariq , Minha Kim , Simon S. Woo

The rapid advancement of video generation models has made it increasingly challenging to distinguish AI-generated videos from real ones. This issue underscores the urgent need for effective AI-generated video detectors to prevent the…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Zhenliang Ni , Qiangyu Yan , Mouxiao Huang , Tianning Yuan , Yehui Tang , Hailin Hu , Xinghao Chen , Yunhe Wang

Recent advancements in AI-based multimedia generation have enabled the creation of hyper-realistic images and videos, raising concerns about their potential use in spreading misinformation. The widespread accessibility of generative…

计算机视觉与模式识别 · 计算机科学 2025-04-30 Joy Battocchio , Stefano Dell'Anna , Andrea Montibeller , Giulia Boato

In this paper, we present a dataset capturing diverse visual data formats that target varying luminance conditions. While RGB cameras provide nourishing and intuitive information, changes in lighting conditions potentially result in…

机器人学 · 计算机科学 2022-04-15 Alex Junho Lee , Younggun Cho , Young-sik Shin , Ayoung Kim , Hyun Myung

A new large-scale video dataset for human action recognition, called STAIR Actions is introduced. STAIR Actions contains 100 categories of action labels representing fine-grained everyday home actions so that it can be applied to research…

计算机视觉与模式识别 · 计算机科学 2018-04-17 Yuya Yoshikawa , Jiaqing Lin , Akikazu Takeuchi

The recent proliferation of hyper-realistic deepfake videos has drawn attention to the threat of audio and visual forgeries. Most previous studies on detecting artificial intelligence-generated fake videos only utilize visual modality or…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Ammarah Hashmi , Sahibzada Adil Shahzad , Chia-Wen Lin , Yu Tsao , Hsin-Min Wang

Advancement of machine learning techniques, combined with the availability of large-scale datasets, has significantly improved the accuracy and efficiency of facial recognition. Modern facial recognition systems are trained using large face…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Ajnas Muhammed , Iurri Medvedev , Nuno Gonçalves

In many real-world problems, there is typically a large discrepancy between the characteristics of data used in training versus deployment. A prime example is the analysis of aggression videos: in a criminal incidence, typically suspects…

计算机视觉与模式识别 · 计算机科学 2020-09-17 Yunus Can Bilge , Mehmet Kerim Yucel , Ramazan Gokberk Cinbis , Nazli Ikizler-Cinbis , Pinar Duygulu

Understanding comprehensive assembly knowledge from videos is critical for futuristic ultra-intelligent industry. To enable technological breakthrough, we present HA-ViD - the first human assembly video dataset that features representative…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Hao Zheng , Regina Lee , Yuqian Lu