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The rapid advancement of deep learning has turned models into highly valuable assets due to their reliance on massive data and costly training processes. However, these models are increasingly vulnerable to leakage and theft, highlighting…

密码学与安全 · 计算机科学 2026-05-01 Yunfei Yang , Xiaojun Chen , Zhendong Zhao , Yu Zhou , Xiaoyan Gu , Juan Cao

The proliferation of videos generated by diffusion models has raised increasing concerns about information security, highlighting the urgent need for reliable detection of synthetic media. Existing methods primarily focus on image-level…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Xiaohong Liu , Xiufeng Song , Huayu Zheng , Lei Bai , Xiaoming Liu , Guangtao Zhai

In this paper, we introduce Coarse-Fine Networks, a two-stream architecture which benefits from different abstractions of temporal resolution to learn better video representations for long-term motion. Traditional Video models process…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Kumara Kahatapitiya , Michael S. Ryoo

Videos are inherently multimodal. This paper studies the problem of how to fully exploit the abundant multimodal clues for improved video categorization. We introduce a hybrid deep learning framework that integrates useful clues from…

多媒体 · 计算机科学 2017-06-15 Yu-Gang Jiang , Zuxuan Wu , Jinhui Tang , Zechao Li , Xiangyang Xue , Shih-Fu Chang

In this paper, we address the problem of referring expression comprehension in videos, which is challenging due to complex expression and scene dynamics. Unlike previous methods which solve the problem in multiple stages (i.e., tracking,…

计算机视觉与模式识别 · 计算机科学 2021-03-24 Sijie Song , Xudong Lin , Jiaying Liu , Zongming Guo , Shih-Fu Chang

We tackle the task of video moment retrieval (VMR), which aims to localize a specific moment in a video according to a textual query. Existing methods primarily model the matching relationship between query and moment by complex cross-modal…

计算机视觉与模式识别 · 计算机科学 2021-06-04 Xun Yang , Fuli Feng , Wei Ji , Meng Wang , Tat-Seng Chua

We develop a novel framework for single-scene video anomaly localization that allows for human-understandable reasons for the decisions the system makes. We first learn general representations of objects and their motions (using deep…

计算机视觉与模式识别 · 计算机科学 2022-12-16 Ashish Singh , Michael J. Jones , Erik Learned-Miller

Recently, image forensics community has paied attention to the research on the design of effective algorithms based on deep learning technology and facts proved that combining the domain knowledge of image forensics and deep learning would…

计算机视觉与模式识别 · 计算机科学 2018-12-26 Wei Zhao , Pengpeng Yang , Rongrong Ni , Yao Zhao , Haorui Wu

Deepfake has recently raised a plethora of societal concerns over its possible security threats and dissemination of fake information. Much research on deepfake detection has been undertaken. However, detecting low quality as well as…

计算机视觉与模式识别 · 计算机科学 2023-09-13 Binh M. Le , Simon S. Woo

This paper presents a novel approach to synthesize automatically age-progressed facial images in video sequences using Deep Reinforcement Learning. The proposed method models facial structures and the longitudinal face-aging process of…

计算机视觉与模式识别 · 计算机科学 2019-04-25 Chi Nhan Duong , Khoa Luu , Kha Gia Quach , Nghia Nguyen , Eric Patterson , Tien D. Bui , Ngan Le

This paper introduces a novel self-supervised method that leverages incoherence detection for video representation learning. It roots from the observation that visual systems of human beings can easily identify video incoherence based on…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Haozhi Cao , Yuecong Xu , Jianfei Yang , Kezhi Mao , Lihua Xie , Jianxiong Yin , Simon See

Detecting deepfake videos is highly challenging given the complexity of characterizing spatio-temporal artifacts. Most existing methods rely on binary classifiers trained using real and fake image sequences, therefore hindering their…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Dat Nguyen , Marcella Astrid , Anis Kacem , Enjie Ghorbel , Djamila Aouada

Nowadays advanced image editing tools and technical skills produce tampered images more realistically, which can easily evade image forensic systems and make authenticity verification of images more difficult. To tackle this challenging…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Jing Hao , Zhixin Zhang , Shicai Yang , Di Xie , Shiliang Pu

Deepfake detection is critical in mitigating the societal threats posed by manipulated videos. While various algorithms have been developed for this purpose, challenges arise when detectors operate externally, such as on smartphones, when…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Razaib Tariq , Shahroz Tariq , Simon S. Woo

Deepfake detection remains a challenging task due to the difficulty of generalizing to new types of forgeries. This problem primarily stems from the overfitting of existing detection methods to forgery-irrelevant features and…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Zhiyuan Yan , Yong Zhang , Yanbo Fan , Baoyuan Wu

This paper introduces an unsupervised framework to extract semantically rich features for video representation. Inspired by how the human visual system groups objects based on motion cues, we propose a deep convolutional neural network that…

计算机视觉与模式识别 · 计算机科学 2017-07-18 Xunyu Lin , Victor Campos , Xavier Giro-i-Nieto , Jordi Torres , Cristian Canton Ferrer

We address multimodal deepfake detection requiring both robustness and interpretability by proposing FakeHunter, a unified framework that combines memory guided retrieval, a structured Observation-Thought-Action reasoning loop, and adaptive…

多媒体 · 计算机科学 2025-09-11 Chen Chen , Runze Li , Zejun Zhang , Pukun Zhao , Fanqing Zhou , Longxiang Wang , Haojian Huang

This paper addresses the challenge of developing a robust audio-visual deepfake detection model. In practical use cases, new generation algorithms are continually emerging, and these algorithms are not encountered during the development of…

声音 · 计算机科学 2024-08-20 Kyungbok Lee , You Zhang , Zhiyao Duan

Developing a technique for the automatic analysis of surveillance videos in order to identify the presence of violence is of broad interest. In this work, we propose a deep neural network for the purpose of recognizing violent videos. A…

计算机视觉与模式识别 · 计算机科学 2017-09-20 Swathikiran Sudhakaran , Oswald Lanz

The growing threat posed by deepfake videos, capable of manipulating realities and disseminating misinformation, drives the urgent need for effective detection methods. This work investigates and compares different approaches for…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Matheus Martins Batista