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Visual anomaly detection targets to detect images that notably differ from normal pattern, and it has found extensive application in identifying defective parts within the manufacturing industry. These anomaly detection paradigms…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Anindya Sundar Das , Guansong Pang , Monowar Bhuyan

We focus on the audio-visual video parsing (AVVP) problem that involves detecting audio and visual event labels with temporal boundaries. The task is especially challenging since it is weakly supervised with only event labels available as a…

Computer Vision and Pattern Recognition · Computer Science 2022-11-14 Piyush Singh Pasi , Shubham Nemani , Preethi Jyothi , Ganesh Ramakrishnan

This paper presents an audio visual automatic speech recognition (AV-ASR) system using a Transformer-based architecture. We particularly focus on the scene context provided by the visual information, to ground the ASR. We extract…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-01 Georgios Paraskevopoulos , Srinivas Parthasarathy , Aparna Khare , Shiva Sundaram

Video anomaly detection aims to discover abnormal events in videos, and the principal objects are target objects such as people and vehicles. Each target in the video data has rich spatio-temporal context information. Most existing methods…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Chao Hu , Weibin Qiu , Weijie Wu , Liqiang Zhu

Zero-shot anomaly detection aims to detect and localise abnormal regions in the image without access to any in-domain training images. While recent approaches leverage vision-language models (VLMs), such as CLIP, to transfer high-level…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Matic Fučka , Vitjan Zavrtanik , Danijel Skočaj

Weakly supervised violence detection refers to the technique of training models to identify violent segments in videos using only video-level labels. Among these approaches, multimodal violence detection, which integrates modalities such as…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Wenping Jin , Li Zhu , Jing Sun

Manipulated videos often contain subtle inconsistencies between their visual and audio signals. We propose a video forensics method, based on anomaly detection, that can identify these inconsistencies, and that can be trained solely using…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Chao Feng , Ziyang Chen , Andrew Owens

Underwater video monitoring is a promising strategy for assessing marine biodiversity, but the vast volume of uneventful footage makes manual inspection highly impractical. In this work, we explore the use of visual anomaly detection (VAD)…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Laura Weihl , Stefan H. Bengtson , Nejc Novak , Malte Pedersen

Recently, weakly supervised video anomaly detection (WS-VAD) has emerged as a contemporary research direction to identify anomaly events like violence and nudity in videos using only video-level labels. However, this task has substantial…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Ayush Ghadiya , Purbayan Kar , Vishal Chudasama , Pankaj Wasnik

Audio-visual feature synchronization for real-time speech enhancement in hearing aids represents a progressive approach to improving speech intelligibility and user experience, particularly in strong noisy backgrounds. This approach…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-28 Nasir Saleem , Mandar Gogate , Kia Dashtipour , Adeel Hussain , Usman Anwar , Adewale Adetomi , Tughrul Arslan , Amir Hussain

We propose Audio-Visual Lightweight ITerative model (AVLIT), an effective and lightweight neural network that uses Progressive Learning (PL) to perform audio-visual speech separation in noisy environments. To this end, we adopt the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-02 Héctor Martel , Julius Richter , Kai Li , Xiaolin Hu , Timo Gerkmann

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…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Yoav Arad , Michael Werman

Depression, a common mental disorder, significantly influences individuals and imposes considerable societal impacts. The complexity and heterogeneity of the disorder necessitate prompt and effective detection, which nonetheless, poses a…

Sound · Computer Science 2023-08-25 Xiao Xu , Yang Wang , Xinru Wei , Fei Wang , Xizhe Zhang

Audio-based automatic speech recognition (ASR) degrades significantly in noisy environments and is particularly vulnerable to interfering speech, as the model cannot determine which speaker to transcribe. Audio-visual speech recognition…

Sound · Computer Science 2022-07-18 Bowen Shi , Wei-Ning Hsu , Abdelrahman Mohamed

The practical deployment of Visual Anomaly Detection (VAD) systems is hindered by their sensitivity to real-world imaging variations, particularly the complex interplay between viewpoint and illumination which drastically alters defect…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 Yunkang Cao , Yuqi Cheng , Xiaohao Xu , Yiheng Zhang , Yihan Sun , Yuxiang Tan , Yuxin Zhang , Xiaonan Huang , Weiming Shen

Audio-visual understanding is a rapidly evolving field that seeks to integrate and interpret information from both auditory and visual modalities. Despite recent advances in multi-modal learning, existing benchmarks often suffer from strong…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Gorjan Radevski , Teodora Popordanoska , Matthew B. Blaschko , Tinne Tuytelaars

In the context of escalating safety concerns across various domains, the tasks of Video Anomaly Detection (VAD) and Video Anomaly Recognition (VAR) have emerged as critically important for applications in intelligent surveillance, evidence…

Machine Learning · Computer Science 2025-05-27 Sanggeon Yun , Ryozo Masukawa , Minhyoung Na , Mohsen Imani

This paper focuses on two key problems for audio-visual emotion recognition in the video. One is the audio and visual streams temporal alignment for feature level fusion. The other one is locating and re-weighting the perception attentions…

Computer Vision and Pattern Recognition · Computer Science 2016-03-29 Linlin Chao , Jianhua Tao , Minghao Yang , Ya Li , Zhengqi Wen

Video anomaly detection (VAD) is crucial for video analysis and surveillance in computer vision. However, existing VAD models rely on learned normal patterns, which makes them difficult to apply to diverse environments. Consequently, users…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Sunghyun Ahn , Youngwan Jo , Kijung Lee , Sein Kwon , Inpyo Hong , Sanghyun Park

The recent developments in Large Multi-modal Video Models (Video-LMMs) have significantly enhanced our ability to interpret and analyze video data. Despite their impressive capabilities, current Video-LMMs have not been evaluated for…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Rohit Bharadwaj , Hanan Gani , Muzammal Naseer , Fahad Shahbaz Khan , Salman Khan