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When dealing with overlapped speech, the performance of automatic speech recognition (ASR) systems substantially degrades as they are designed for single-talker speech. To enhance ASR performance in conversational or meeting environments,…

音频与语音处理 · 电气工程与系统科学 2023-11-16 Hassan Taherian , DeLiang Wang

Anomaly identification is highly dependent on the relationship between the object and the scene, as different/same object actions in same/different scenes may lead to various degrees of normality and anomaly. Therefore, object-scene…

计算机视觉与模式识别 · 计算机科学 2022-09-28 Hui Lv , Zhen Cui , Biao Wang , Jian Yang

This paper presents a self-supervised method for visual detection of the active speaker in a multi-person spoken interaction scenario. Active speaker detection is a fundamental prerequisite for any artificial cognitive system attempting to…

计算机视觉与模式识别 · 计算机科学 2019-07-19 Kalin Stefanov , Jonas Beskow , Giampiero Salvi

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…

图像与视频处理 · 电气工程与系统科学 2022-09-27 Rahul Sharma , Shrikanth Narayanan

Long-form video question answering remains challenging for modern vision-language models, which struggle to reason over hour-scale footage without exceeding practical token and compute budgets. Existing systems typically downsample frames…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Aradhya Dixit , Tianxi Liang

Video anomaly detection has proved to be a challenging task owing to its unsupervised training procedure and high spatio-temporal complexity existing in real-world scenarios. In the absence of anomalous training samples, state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Masoud Pourreza , Mohammadreza Salehi , Mohammad Sabokrou

During the Covid, online meetings have become an indispensable part of our lives. This trend is likely to continue due to their convenience and broad reach. However, background noise from other family members, roommates, office-mates not…

声音 · 计算机科学 2022-07-22 Wei Sun , Mei Wang , Lili Qiu

This paper presents a novel framework for Speech Activity Detection (SAD). Inspired by the recent success of multi-task learning approaches in the speech processing domain, we propose a novel joint learning framework for SAD. We utilise…

音频与语音处理 · 电气工程与系统科学 2020-04-06 Tharindu Fernando , Sridha Sridharan , Mitchell McLaren , Darshana Priyasad , Simon Denman , Clinton Fookes

The performance of speaker verification degrades significantly in adverse acoustic environments with strong reverberation and noise. To address this issue, this paper proposes a spatial-temporal graph convolutional network (GCN) method for…

声音 · 计算机科学 2023-07-06 Yijiang Chen , Chengdong Liang , Xiao-Lei Zhang

Events in natural videos typically arise from spatio-temporal interactions between actors and objects and involve multiple co-occurring activities and object classes. To capture this rich visual and semantic context, we propose using two…

计算机视觉与模式识别 · 计算机科学 2020-10-01 Effrosyni Mavroudi , Benjamín Béjar Haro , René Vidal

Large-scale pre-trained image-text models exhibit robust multimodal representations, yet applying the Contrastive Language-Image Pre-training (CLIP) model to audio-visual localization remains challenging. Replacing the classification token…

计算机视觉与模式识别 · 计算机科学 2026-03-25 Khanh Binh Nguyen , Chae Jung Park

The goal of this work is Active Speaker Detection (ASD), a task to determine whether a person is speaking or not in a series of video frames. Previous works have dealt with the task by exploring network architectures while learning…

计算机视觉与模式识别 · 计算机科学 2023-09-22 Chaeyoung Jung , Suyeon Lee , Kihyun Nam , Kyeongha Rho , You Jin Kim , Youngjoon Jang , Joon Son Chung

Overlapping speech diarization has been traditionally treated as a multi-label classification problem. In this paper, we reformulate this task as a single-label prediction problem by encoding multiple binary labels into a single label with…

声音 · 计算机科学 2022-04-01 Zhihao Du , Shiliang Zhang , Siqi Zheng , Zhijie Yan

The Speaker Diarization and Recognition (SDR) task aims to predict "who spoke when and what" within an audio clip, which is a crucial task in various real-world multi-speaker scenarios such as meeting transcription and dialogue systems.…

声音 · 计算机科学 2026-01-06 Han Yin , Yafeng Chen , Chong Deng , Luyao Cheng , Hui Wang , Chao-Hong Tan , Qian Chen , Wen Wang , Xiangang Li

Voice activity detection (VAD) is an essential pre-processing step for tasks such as automatic speech recognition (ASR) and speaker recognition. A basic goal is to remove silent segments within an audio, while a more general VAD system…

音频与语音处理 · 电气工程与系统科学 2020-09-22 Yefei Chen , Shuai Wang , Yanmin Qian , Kai Yu

Audio-visual active speaker detection (AV-ASD) aims to identify which visible face is speaking in a scene with one or more persons. Most existing AV-ASD methods prioritize capturing speech-lip correspondence. However, there is a noticeable…

音频与语音处理 · 电气工程与系统科学 2024-04-02 Ruijie Tao , Xinyuan Qian , Rohan Kumar Das , Xiaoxue Gao , Jiadong Wang , Haizhou Li

This paper introduces an active learning (AL) framework for anomalous sound detection (ASD) in machine condition monitoring system. Typically, ASD models are trained solely on normal samples due to the scarcity of anomalous data, leading to…

声音 · 计算机科学 2024-08-13 Tuan Vu Ho , Kota Dohi , Yohei Kawaguchi

Speaker identification (SID) in the household scenario (e.g., for smart speakers) is an important but challenging problem due to limited number of labeled (enrollment) utterances, confusable voices, and demographic imbalances. Conventional…

音频与语音处理 · 电气工程与系统科学 2023-07-19 Long Chen , Yixiong Meng , Venkatesh Ravichandran , Andreas Stolcke

Video Large Language Models (Video-LLMs) have recently shown strong performance in basic video understanding tasks, such as captioning and coarse-grained question answering, but struggle with compositional reasoning that requires multi-step…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Haiyi Qiu , Minghe Gao , Long Qian , Kaihang Pan , Qifan Yu , Juncheng Li , Wenjie Wang , Siliang Tang , Yueting Zhuang , Tat-Seng Chua

We introduce a new efficient framework, the Unified Context Network (UniCon), for robust active speaker detection (ASD). Traditional methods for ASD usually operate on each candidate's pre-cropped face track separately and do not…

计算机视觉与模式识别 · 计算机科学 2021-08-06 Yuanhang Zhang , Susan Liang , Shuang Yang , Xiao Liu , Zhongqin Wu , Shiguang Shan , Xilin Chen