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Facial action unit (AU) detection and face alignment are two highly correlated tasks, since facial landmarks can provide precise AU locations to facilitate the extraction of meaningful local features for AU detection. However, most existing…

Computer Vision and Pattern Recognition · Computer Science 2020-09-25 Zhiwen Shao , Zhilei Liu , Jianfei Cai , Lizhuang Ma

Current methods for action recognition primarily rely on deep convolutional networks to derive feature embeddings of visual and motion features. While these methods have demonstrated remarkable performance on standard benchmarks, we are…

Computer Vision and Pattern Recognition · Computer Science 2020-05-21 Dian Shao , Yue Zhao , Bo Dai , Dahua Lin

Online action recognition is an important task for human centered intelligent services, which is still difficult to achieve due to the varieties and uncertainties of spatial and temporal scales of human actions. In this paper, we propose…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Guoliang Liu , Qinghui Zhang , Yichao Cao , Junwei Li , Hao Wu , Guohui Tian

Action Units (AUs) are geometrically-based atomic facial muscle movements known to produce appearance changes at specific facial locations. Motivated by this observation we propose a novel AU modelling problem that consists of jointly…

Computer Vision and Pattern Recognition · Computer Science 2020-04-15 Ioanna Ntinou , Enrique Sanchez , Adrian Bulat , Michel Valstar , Georgios Tzimiropoulos

Action recognition and anticipation are key to the success of many computer vision applications. Existing methods can roughly be grouped into those that extract global, context-aware representations of the entire image or sequence, and…

Computer Vision and Pattern Recognition · Computer Science 2016-11-21 Mohammad Sadegh Aliakbarian , Fatemehsadat Saleh , Basura Fernando , Mathieu Salzmann , Lars Petersson , Lars Andersson

Trained human pilots or operators still stand out through their efficient, robust, and versatile skills in guidance tasks such as driving agile vehicles in spatial environments or performing complex surgeries. This research studies how…

Robotics · Computer Science 2017-10-24 Abhishek Verma , Bérénice Mettler

In this paper we explore the influence of some frequently used Convolutional Neural Networks (CNNs), training settings, and training set structures, on Action Unit (AU) detection. Specifically, we first compare 10 different shallow and deep…

Computer Vision and Pattern Recognition · Computer Science 2021-11-17 Mina Bishay , Ahmed Ghoneim , Mohamed Ashraf , Mohammad Mavadati

Inspired by Gibson's notion of object affordances in human vision, we ask the question: how can an agent learn to predict an entire action policy for a novel object or environment given only a single glimpse? To tackle this problem, we…

Machine Learning · Computer Science 2022-07-11 Dimitrios C. Gklezakos , Rishi Jha , Rajesh P. N. Rao

Humans can collaborate and complete tasks based on visual signals and instruction from the environment. Training such a robot is difficult especially due to the understanding of the instruction and the complicated environment. Previous…

Artificial Intelligence · Computer Science 2023-05-12 Kairui Zhou

A generalist robot should perform effectively across various environments. However, most existing approaches heavily rely on scaling action-annotated data to enhance their capabilities. Consequently, they are often limited to single…

Robotics · Computer Science 2025-11-04 Qingwen Bu , Yanting Yang , Jisong Cai , Shenyuan Gao , Guanghui Ren , Maoqing Yao , Ping Luo , Hongyang Li

There is a large variation in the activities that humans perform in their everyday lives. We consider modeling these composite human activities which comprises multiple basic level actions in a completely unsupervised setting. Our model…

Computer Vision and Pattern Recognition · Computer Science 2016-03-14 Chenxia Wu , Jiemi Zhang , Ozan Sener , Bart Selman , Silvio Savarese , Ashutosh Saxena

Characterizing interactions between brain areas is a fundamental goal of systems neuroscience. While such analyses are possible when areas are recorded simultaneously, it is rare to observe all combinations of areas of interest within a…

Neurons and Cognition · Quantitative Biology 2025-10-15 Ji Xia , Yizi Zhang , Shuqi Wang , Genevera I. Allen , Liam Paninski , Cole Lincoln Hurwitz , Kenneth D. Miller

The scarcity of high quality actions video data is a bottleneck in the research and application of action recognition. Although significant effort has been made in this area, there still exist gaps in the range of available data types a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Shuo Wang , Amiya Ranjan , Lawrence Jiang

Building autonomous agents that perceive and operate graphical user interfaces (GUIs) like humans has long been a vision in the field of artificial intelligence. Central to these agents is the capability for GUI interaction, which involves…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Hongxin Li , Jingran Su , Jingfan Chen , Zheng Ju , Yuntao Chen , Qing Li , Zhaoxiang Zhang

Detecting assistance from artificial intelligence is increasingly important as they become ubiquitous across complex tasks such as text generation, medical diagnosis, and autonomous driving. Aid detection is challenging for humans,…

Artificial Intelligence · Computer Science 2025-07-16 Tyler King , Nikolos Gurney , John H. Miller , Volkan Ustun

One of the fundamental goals of visual perception is to allow agents to meaningfully interact with their environment. In this paper, we take a step towards that long-term goal -- we extract highly localized actionable information related to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Kaichun Mo , Leonidas Guibas , Mustafa Mukadam , Abhinav Gupta , Shubham Tulsiani

This paper introduces AutoGCN, a generic Neural Architecture Search (NAS) algorithm for Human Activity Recognition (HAR) using Graph Convolution Networks (GCNs). HAR has gained attention due to advances in deep learning, increased data…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Felix Tempel , Inga Strümke , Espen Alexander F. Ihlen

Contemporary machine learning paradigm excels in statistical data analysis, solving problems that classical AI couldn't. However, it faces key limitations, such as a lack of integration with planning, incomprehensible internal structure,…

Artificial Intelligence · Computer Science 2025-01-29 Zeki Doruk Erden , Boi Faltings

This paper has been withdrawn by the authors due to insufficient or definition error(s) in the ethics approval protocol. Autism spectrum disorders (ASD) impact the cognitive, social, communicative and behavioral abilities of an individual.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Andrew Cook , Bappaditya Mandal , Donna Berry , Matthew Johnson

Human Action Recognition (HAR), one of the most important tasks in computer vision, has developed rapidly in the past decade and has a wide range of applications in health monitoring, intelligent surveillance, virtual reality, human…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Zhou Shuchang