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Temporal action detection (TAD) involves the localization and classification of action instances within untrimmed videos. While standard TAD follows fully supervised learning with closed-set setting on large training data, recent zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Thinh Phan , Khoa Vo , Duy Le , Gianfranco Doretto , Donald Adjeroh , Ngan Le

In this paper, we address the problem of lip-voice synchronisation in videos containing human face and voice. Our approach is based on determining if the lips motion and the voice in a video are synchronised or not, depending on their…

Computer Vision and Pattern Recognition · Computer Science 2022-07-01 Venkatesh S. Kadandale , Juan F. Montesinos , Gloria Haro

We present a cross-modal unsupervised framework for active speaker detection in media content such as TV shows and movies. Machine learning advances have enabled impressive performance in identifying individuals from speech and facial…

Image and Video Processing · Electrical Eng. & Systems 2022-09-27 Rahul Sharma , Shrikanth Narayanan

This paper presents a new hybrid architecture for voice activity detection (VAD) incorporating both convolutional neural network (CNN) and bidirectional long short-term memory (BiLSTM) layers trained in an end-to-end manner. In addition, we…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-08 Nicholas Wilkinson , Thomas Niesler

VAR is a new generation paradigm that employs 'next-scale prediction' as opposed to 'next-token prediction'. This innovative transformation enables auto-regressive (AR) transformers to rapidly learn visual distributions and achieve robust…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Qian Zhang , Xiangzi Dai , Ninghua Yang , Xiang An , Ziyong Feng , Xingyu Ren

Existing Video Anomaly Detection (VAD) methods typically rely on task-specific training, leading to strong domain dependency and high training costs. Moreover, most existing methods output only scalar anomaly scores, providing limited…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Hyeongmuk Lim , Youngbum Hur

Audio-Visual Video Parsing (AVVP) task aims to detect and temporally locate events within audio and visual modalities. Multiple events can overlap in the timeline, making identification challenging. While traditional methods usually focus…

Artificial Intelligence · Computer Science 2024-07-12 Jinxing Zhou , Dan Guo , Yuxin Mao , Yiran Zhong , Xiaojun Chang , Meng Wang

Speech activity detection (or endpointing) is an important processing step for applications such as speech recognition, language identification and speaker diarization. Both audio- and vision-based approaches have been used for this task in…

Large-scale web-crawled datasets are fundamental for the success of pre-training vision-language models, such as CLIP. However, the inherent noise and potential irrelevance of web-crawled AltTexts pose challenges in achieving precise…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Zhengfeng Lai , Haotian Zhang , Bowen Zhang , Wentao Wu , Haoping Bai , Aleksei Timofeev , Xianzhi Du , Zhe Gan , Jiulong Shan , Chen-Nee Chuah , Yinfei Yang , Meng Cao

Personal Voice Activity Detection (PVAD) is crucial for identifying target speaker segments in the mixture, yet its performance heavily depends on the quality of speaker embeddings. A key practical limitation is the short enrollment…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-21 Fuyuan Feng , Wenbin Zhang , Yu Gao , Longting Xu , Xiaofeng Mou , Yi Xu

Pre-trained vision-language models (VLMs), such as CLIP, have exhibited remarkable performance across various downstream tasks by aligning text and images in a unified embedding space. However, due to the imbalanced distribution of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Yunfan Yang , Chaoquan Jiang , Zhiyu Lin , Jinlin Xiao , Jiaming Zhang , Jitao Sang

Since facial actions such as lip movements contain significant information about speech content, it is not surprising that audio-visual speech enhancement methods are more accurate than their audio-only counterparts. Yet, state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Karren Yang , Dejan Markovic , Steven Krenn , Vasu Agrawal , Alexander Richard

Towards open-ended Video Anomaly Detection (VAD), existing methods often exhibit biased detection when faced with challenging or unseen events and lack interpretability. To address these drawbacks, we propose Holmes-VAD, a novel framework…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Huaxin Zhang , Xiaohao Xu , Xiang Wang , Jialong Zuo , Chuchu Han , Xiaonan Huang , Changxin Gao , Yuehuan Wang , Nong Sang

Video anomaly detection (VAD) aims to identify unexpected events in videos and has wide applications in safety-critical domains. While semi-supervised methods trained on only normal samples have gained traction, they often suffer from high…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Zongcan Ding , Haodong Zhang , Peng Wu , Guansong Pang , Zhiwei Yang , Peng Wang , Yanning Zhang

Video action detection (VAD) aims to detect actors and classify their actions in a video. We figure that VAD suffers more from classification rather than localization of actors. Hence, we analyze how prevailing methods form features for…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Jinsung Lee , Taeoh Kim , Inwoong Lee , Minho Shim , Dongyoon Wee , Minsu Cho , Suha Kwak

This paper investigates the application of voice activity projection (VAP), a predictive turn-taking model for spoken dialogue, on multilingual data, encompassing English, Mandarin, and Japanese. The VAP model continuously predicts the…

Computation and Language · Computer Science 2024-03-18 Koji Inoue , Bing'er Jiang , Erik Ekstedt , Tatsuya Kawahara , Gabriel Skantze

When we use End-to-end automatic speech recognition (E2E-ASR) system for real-world applications, a voice activity detection (VAD) system is usually needed to improve the performance and to reduce the computational cost by discarding…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-03 Meng Li , Xia Yan , Feng Lin

Industrial anomaly detection (IAD) plays a crucial role in the maintenance and quality control of manufacturing processes. In this paper, we propose a novel approach, Vision-Language Anomaly Detection via Contrastive Cross-Modal Training…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Kun Qian , Tianyu Sun , Wenhong Wang

This paper presents DetCLIPv2, an efficient and scalable training framework that incorporates large-scale image-text pairs to achieve open-vocabulary object detection (OVD). Unlike previous OVD frameworks that typically rely on a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Lewei Yao , Jianhua Han , Xiaodan Liang , Dan Xu , Wei Zhang , Zhenguo Li , Hang Xu

Although speaker verification has conventionally been an audio-only task, some practical applications provide both audio and visual streams of input. In these cases, the visual stream provides complementary information and can often be…

Sound · Computer Science 2021-02-15 Leda Sarı , Kritika Singh , Jiatong Zhou , Lorenzo Torresani , Nayan Singhal , Yatharth Saraf
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