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Affective computing has become a very important research area in human-machine interaction. However, affects are subjective, subtle, and uncertain. So, it is very difficult to obtain a large number of labeled training samples, compared with…

Machine Learning · Computer Science 2020-04-02 Chenfeng Guo , Dongrui Wu

3D skeleton-based action recognition and motion prediction are two essential problems of human activity understanding. In many previous works: 1) they studied two tasks separately, neglecting internal correlations; 2) they did not capture…

Computer Vision and Pattern Recognition · Computer Science 2019-10-08 Maosen Li , Siheng Chen , Xu Chen , Ya Zhang , Yanfeng Wang , Qi Tian

Facial expressions play a significant role in human communication and behavior. Psychologists have long studied the relationship between facial expressions and emotions. Paul Ekman et al., devised the Facial Action Coding System (FACS) to…

Computer Vision and Pattern Recognition · Computer Science 2017-05-11 Ran Breuer , Ron Kimmel

Motivation: Recognizing human actions in a video is a challenging task which has applications in various fields. Previous works in this area have either used images from a 2D or 3D camera. Few have used the idea that human actions can be…

Computer Vision and Pattern Recognition · Computer Science 2016-12-21 Adhavan Jayabalan , Harish Karunakaran , Shravan Murlidharan , Tesia Shizume

Automatic facial behavior analysis has a long history of studies in the intersection of computer vision, physiology and psychology. However it is only recently, with the collection of large-scale datasets and powerful machine learning…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Dimitrios Kollias , Viktoriia Sharmanska , Stefanos Zafeiriou

The study proposes and tests a technique for automated emotion recognition through mouth detection via Convolutional Neural Networks (CNN), meant to be applied for supporting people with health disorders with communication skills issues…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Giulio Biondi , Valentina Franzoni , Osvaldo Gervasi , Damiano Perri

This paper presents a new method for 3D action recognition with skeleton sequences (i.e., 3D trajectories of human skeleton joints). The proposed method first transforms each skeleton sequence into three clips each consisting of several…

Computer Vision and Pattern Recognition · Computer Science 2017-11-21 Qiuhong Ke , Mohammed Bennamoun , Senjian An , Ferdous Sohel , Farid Boussaid

This paper proposes a novel application system for the generation of three-dimensional (3D) character animation driven by markerless human body motion capturing. The entire pipeline of the system consists of five stages: 1) the capturing of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Jinbao Wang , Ke Lu , Jian Xue

This paper presents an image classification based approach for skeleton-based video action recognition problem. Firstly, A dataset independent translation-scale invariant image mapping method is proposed, which transformes the skeleton…

Computer Vision and Pattern Recognition · Computer Science 2017-06-14 Bo Li , Mingyi He , Xuelian Cheng , Yucheng Chen , Yuchao Dai

Micro-expression has emerged as a promising modality in affective computing due to its high objectivity in emotion detection. Despite the higher recognition accuracy provided by the deep learning models, there are still significant scope…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Viswanatha Reddy Gajjala , Sai Prasanna Teja Reddy , Snehasis Mukherjee , Shiv Ram Dubey

Most recent work focused on affect from facial expressions, and not as much on body. This work focuses on body affect analysis. Affect does not occur in isolation. Humans usually couple affect with an action in natural interactions; for…

Computer Vision and Pattern Recognition · Computer Science 2016-03-22 Timothy J. Shields , Mohamed R. Amer , Max Ehrlich , Amir Tamrakar

Facial action units (AUs) are essential to decode human facial expressions. Researchers have focused on training AU detectors with a variety of features and classifiers. However, several issues remain. These are spatial representation,…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Wen-Sheng Chu , Fernando De la Torre , Jeffrey F. Cohn

Different from traditional action recognition based on video segments, online action recognition aims to recognize actions from unsegmented streams of data in a continuous manner. One way for online recognition is based on the evidence…

Computer Vision and Pattern Recognition · Computer Science 2017-07-07 Chang Tang , Pichao Wang , Wanqing Li

The goal of the present study is to explore the application of deep convolutional network features to emotion recognition. Results indicate that they perform similarly to other published models at a best recognition rate of 94.4%, and do so…

Computer Vision and Pattern Recognition · Computer Science 2014-08-19 Sébastien Ouellet

The human face constantly conveys information, both consciously and subconsciously. However, as basic as it is for humans to visually interpret this information, it is quite a big challenge for machines. Conventional semantic facial feature…

Machine Learning · Computer Science 2016-10-21 Amogh Gudi

Emotional Artificial Intelligences are currently one of the most anticipated developments of AI. If successful, these AIs will be classified as one of the most complex, intelligent nonhuman entities as they will possess sentience, the…

Machine Learning · Computer Science 2023-10-17 Ashley Jisue Hong , David DiStefano , Sejal Dua

Despite significant recent advances in the field of head pose estimation and facial expression recognition, raising the cognitive level when analysing human activity presents serious challenges to current concepts. Motivated by the need of…

Computer Vision and Pattern Recognition · Computer Science 2017-03-17 Grigorios Kalliatakis , Nikolaos Vidakis , Georgios Triantafyllidis

The ability to recognize facial expressions automatically enables novel applications in human-computer interaction and other areas. Consequently, there has been active research in this field, with several recent works utilizing…

Computer Vision and Pattern Recognition · Computer Science 2016-12-12 Christopher Pramerdorfer , Martin Kampel

Human affect recognition has been a significant topic in psychophysics and computer vision. However, the currently published datasets have many limitations. For example, most datasets contain frames that contain only information about…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Zhihang Ren , Jefferson Ortega , Yifan Wang , Zhimin Chen , Yunhui Guo , Stella X. Yu , David Whitney

A significant number of people are suffering from cognitive impairment all over the world. Early detection of cognitive impairment is of great importance to both patients and caregivers. However, existing approaches have their shortages,…

Computer Vision and Pattern Recognition · Computer Science 2021-11-10 Zixiang Fei , Erfu Yang , Leijian Yu , Xia Li , Huiyu Zhou , Wenju Zhou