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We develop streaming keyword spotting systems using a recurrent neural network transducer (RNN-T) model: an all-neural, end-to-end trained, sequence-to-sequence model which jointly learns acoustic and language model components. Our models…

计算与语言 · 计算机科学 2017-10-27 Yanzhang He , Rohit Prabhavalkar , Kanishka Rao , Wei Li , Anton Bakhtin , Ian McGraw

Face presentation attack detection (FacePAD) remains challenging under diverse spoofing representation, including 2D print and replay, 3D mask-based spoofing, makeup-induced appearance manipulation, and physical occlusions, as well as under…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Muhammad Shahid Jabbar , Muhammad Sohail Ibrahim , Taha Hasan Masood Siddique , Kejie Huang , Shujaat Khan

Violence and abnormal behavior detection research have known an increase of interest in recent years, due mainly to a rise in crimes in large cities worldwide. In this work, we propose a deep learning architecture for violence detection…

计算机视觉与模式识别 · 计算机科学 2024-09-13 Abdarahmane Traoré , Moulay A. Akhloufi

This paper presents MMA-MRNNet, a novel deep learning architecture for dynamic multi-output Facial Expression Intensity Estimation (FEIE) from video data. Traditional approaches to this task often rely on complex 3-D CNNs, which require…

计算机视觉与模式识别 · 计算机科学 2024-09-05 Dimitrios Kollias , Andreas Psaroudakis , Anastasios Arsenos , Paraskevi Theofilou , Chunchang Shao , Guanyu Hu , Ioannis Patras

To address the sequential changes of images including poses, in this paper we propose a recurrent regression neural network(RRNN) framework to unify two classic tasks of cross-pose face recognition on still images and video-based face…

计算机视觉与模式识别 · 计算机科学 2016-07-26 Yang Li , Wenming Zheng , Zhen Cui

In this paper, we propose a context-aware keyword spotting model employing a character-level recurrent neural network (RNN) for spoken term detection in continuous speech. The RNN is end-to-end trained with connectionist temporal…

计算与语言 · 计算机科学 2015-12-31 Kyuyeon Hwang , Minjae Lee , Wonyong Sung

Recurrent neural networks (RNNs) have been successfully applied to various natural language processing (NLP) tasks and achieved better results than conventional methods. However, the lack of understanding of the mechanisms behind their…

计算与语言 · 计算机科学 2017-10-31 Yao Ming , Shaozu Cao , Ruixiang Zhang , Zhen Li , Yuanzhe Chen , Yangqiu Song , Huamin Qu

For many years, the emotion recognition task has remained one of the most interesting and important problems in the field of human-computer interaction. In this study, we consider the emotion recognition task as a classification as well as…

计算机视觉与模式识别 · 计算机科学 2020-06-22 Denis Rangulov , Muhammad Fahim

Computing optical flow is a fundamental problem in computer vision. However, deep learning-based optical flow techniques do not perform well for non-rigid movements such as those found in faces, primarily due to lack of the training data…

计算机视觉与模式识别 · 计算机科学 2021-05-05 Muhannad Alkaddour , Usman Tariq , Abhinav Dhall

Most micro- and macro-expression spotting methods in untrimmed videos suffer from the burden of video-wise collection and frame-wise annotation. Weakly-supervised expression spotting (WES) based on video-level labels can potentially…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Wang-Wang Yu , Kai-Fu Yang , Hong-Mei Yan , Yong-Jie Li

Action Unit (AU) detection plays an important role for facial expression recognition. To the best of our knowledge, there is little research about AU analysis for micro-expressions. In this paper, we focus on AU detection in…

计算机视觉与模式识别 · 计算机科学 2020-04-13 Yante Li , Xiaohua Huang , Guoying Zhao

Event cameras capture brightness changes asynchronously with microsecond resolution, yet existing optical flow methods fail to fully exploit this temporal continuity. Frame-based approaches impose artificial accumulation latency and suffer…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Gunwoo Jeon , Chaesong Park , Jongwoo Lim

Unlike macro-expression, micro-expression does not follow a strictly consistent mapping rule between emotions and Action Units (AUs). As a result, some micro-expressions share identical AUs yet represent completely opposite emotional…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Chenxing Hu , Kun Xie , Qiguang Miao , Ruyi Liu , Quan Wang , Zongkai Yang

As of late an AI based free programming device has made it simple to make authentic face swaps in recordings that leaves barely any hints of control, in what are known as "deepfake" recordings. Situations where these genuine istic…

计算机视觉与模式识别 · 计算机科学 2020-09-17 Rahul U , Ragul M , Raja Vignesh K , Tejeswinee K

Emotion recognition from speech is a challenging task. Re-cent advances in deep learning have led bi-directional recur-rent neural network (Bi-RNN) and attention mechanism as astandard method for speech emotion recognition, extractingand…

声音 · 计算机科学 2021-06-09 Zixuan Peng , Yu Lu , Shengfeng Pan , Yunfeng Liu

There is an increasing scientific interest in automatically analysing and understanding human behavior, with particular reference to the evolution of facial expressions and the recognition of the corresponding emotions. In this paper we…

计算机视觉与模式识别 · 计算机科学 2021-03-02 Rongjiao Ji , Alessandra Micheletti , Natasa Krklec Jerinkic , Zoranka Desnica

Automatic affect recognition is a challenging task due to the various modalities emotions can be expressed with. Applications can be found in many domains including multimedia retrieval and human computer interaction. In recent years, deep…

计算机视觉与模式识别 · 计算机科学 2018-02-14 Panagiotis Tzirakis , George Trigeorgis , Mihalis A. Nicolaou , Björn Schuller , Stefanos Zafeiriou

Micro-expression can reflect people's real emotions. Recognizing micro-expressions is difficult because they are small motions and have a short duration. As the research is deepening into micro-expression recognition, many effective…

计算机视觉与模式识别 · 计算机科学 2021-02-17 Jinsheng Wei , Guanming Lu , Jingjie Yan

Generating eye diagrams by using a circuit simulator can be very computationally intensive, especially in the presence of nonlinearities. It often involves multiple Newton-like iterations at every time step when a SPICE-like circuit…

信号处理 · 电气工程与系统科学 2019-02-11 Thong Nguyen , Tianjian Lu , Ken Wu , Jose Schutt-Aine

Recognizing facial expressions from static images or video sequences is a widely studied but still challenging problem. The recent progresses obtained by deep neural architectures, or by ensembles of heterogeneous models, have shown that…

计算机视觉与模式识别 · 计算机科学 2018-10-25 Lisa Graziani , Stefano Melacci , Marco Gori