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In recent years there has been considerable interest in human action recognition. Several approaches have been developed in order to enhance the automatic video analysis. Although some developments have been achieved by the computer vision…

Computer Vision and Pattern Recognition · Computer Science 2012-07-09 Núbia Rosa da Silva , Odemir Martinez Bruno

We introduce the task of human action anomaly detection (HAAD), which aims to identify anomalous motions in an unsupervised manner given only the pre-determined normal category of training action samples. Compared to prior human-related…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Shun Maeda , Chunzhi Gu , Jun Yu , Shogo Tokai , Shangce Gao , Chao Zhang

Objective monitoring and assessment of human motor behavior can improve the diagnosis and management of several medical conditions. Over the past decade, significant advances have been made in the use of wearable technology for continuously…

Computer Vision and Pattern Recognition · Computer Science 2019-09-23 Behnaz Rezaei , Yiorgos Christakis , Bryan Ho , Kevin Thomas , Kelley Erb , Sarah Ostadabbas , Shyamal Patel

Multiple human tracking is a fundamental problem for scene understanding. Although both accuracy and speed are required in real-world applications, recent tracking methods based on deep learning have focused on accuracy and require…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Hitoshi Nishimura , Satoshi Komorita , Yasutomo Kawanishi , Hiroshi Murase

When we say a person is texting, can you tell the person is walking or sitting? Emphatically, no. In order to solve this incomplete representation problem, this paper presents a sub-action descriptor for detailed action detection. The…

Computer Vision and Pattern Recognition · Computer Science 2017-10-11 Cheng-Bin Jin , Shengzhe Li , Hakil Kim

The goal of this paper is to identify individuals by analyzing their gait. Instead of using binary silhouettes as input data (as done in many previous works) we propose and evaluate the use of motion descriptors based on densely sampled…

Computer Vision and Pattern Recognition · Computer Science 2016-01-27 F. M. Castro , M. J. Marín-Jiménez , N. Guil , R. Muñoz-Salinas

Computational neuroscience studies that have examined human visual system through functional magnetic resonance imaging (fMRI) have identified a model where the mammalian brain pursues two distinct pathways (for recognition of biological…

Computer Vision and Pattern Recognition · Computer Science 2015-09-15 Bardia Yousefi , C. K. Loo

With crimes on the rise all around the world, video surveillance is becoming more important day by day. Due to the lack of human resources to monitor this increasing number of cameras manually new computer vision algorithms to perform lower…

Computer Vision and Pattern Recognition · Computer Science 2017-09-05 Vandit Gajjar , Ayesha Gurnani , Yash Khandhediya

Human action recognition involves the characterization of human actions through the automated analysis of video data and is integral in the development of smart computer vision systems. However, several challenges like dynamic backgrounds,…

Computer Vision and Pattern Recognition · Computer Science 2017-08-24 Jonti Talukdar , Bhavana Mehta

We present a novel framework for the automatic discovery and recognition of motion primitives in videos of human activities. Given the 3D pose of a human in a video, human motion primitives are discovered by optimizing the `motion flux', a…

Robotics · Computer Science 2019-02-05 Marta Sanzari , Valsamis Ntouskos , Fiora Pirri

We propose a method for representing motion information for video classification and retrieval. We improve upon local descriptor based methods that have been among the most popular and successful models for representing videos. The desired…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Zhenzhong Lan , Xuanchong Li , Ming Lin , Alexander G. Hauptmann

Despite huge success in the image domain, modern detection models such as Faster R-CNN have not been used nearly as much for video analysis. This is arguably due to the fact that detection models are designed to operate on single frames and…

Computer Vision and Pattern Recognition · Computer Science 2018-12-12 Gedas Bertasius , Christoph Feichtenhofer , Du Tran , Jianbo Shi , Lorenzo Torresani

In this paper, we propose a novel gait recognition method based on a bag-of-words feature representation method. The algorithm is trained, tested and evaluated on a unique human gait data consisting of 93 individuals who walked with…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Nasrin Bayat , Elham Rastegari , Qifeng Li

The human action classification task is a widely researched topic and is still an open problem. Many state-of-the-arts approaches involve the usage of bag-of-video-words with spatio-temporal local features to construct characterizations for…

Computer Vision and Pattern Recognition · Computer Science 2016-10-18 Aznul Qalid Md Sabri , Jacques Boonaert , Erma Rahayu Mohd Faizal Abdullah , Ali Mohammed Mansoor

In this paper, we propose a novel technique for measuring behavioral engagement through students' actions recognition. The proposed approach recognizes student actions then predicts the student behavioral engagement level. For student…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Ahmed Abdelkawy , Aly Farag , Islam Alkabbany , Asem Ali , Chris Foreman , Thomas Tretter , Nicholas Hindy

This paper presents a novel approach in a rarely studied area of computer vision: Human interaction recognition in still images. We explore whether the facial regions and their spatial configurations contribute to the recognition of…

Computer Vision and Pattern Recognition · Computer Science 2015-09-18 Gokhan Tanisik , Cemil Zalluhoglu , Nazli Ikizler-Cinbis

The problem of determining whether an object is in motion, irrespective of camera motion, is far from being solved. We address this challenging task by learning motion patterns in videos. The core of our approach is a fully convolutional…

Computer Vision and Pattern Recognition · Computer Science 2017-04-11 Pavel Tokmakov , Karteek Alahari , Cordelia Schmid

Recent research into human action recognition (HAR) has focused predominantly on skeletal action recognition and video-based methods. With the increasing availability of consumer-grade depth sensors and Lidar instruments, there is a growing…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 James Dickens

In this paper, we propose a new instance-level human-object interaction detection task on videos called ST-HOID, which aims to distinguish fine-grained human-object interactions (HOIs) and the trajectories of subjects and objects. It is…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Xu Sun , Yunqing He , Tongwei Ren , Gangshan Wu

Human physical motion activity identification has many potential applications in various fields, such as medical diagnosis, military sensing, sports analysis, and human-computer security interaction. With the recent advances in smartphones…

Human-Computer Interaction · Computer Science 2022-01-24 Abdulrahman Alruban , Hind Alobaidi , Nathan Clarke' Fudong Li