Results 41 to 50 of about 2,738,599 (315)

Semantic Embedding Space for Zero-Shot Action Recognition [PDF]

open access: yes, 2015
The number of categories for action recognition is growing rapidly. It is thus becoming increasingly hard to collect sufficient training data to learn conventional models for each category.
Gong, Shaogang   +2 more
core   +1 more source

A Comprehensive Survey of RGB-Based and Skeleton-Based Human Action Recognition

open access: yesIEEE Access, 2023
With the advancement of computer vision, human action recognition (HAR) has shown its broad research worth and application prospects in a wide range of fields such as intelligent security, automatic driving and human-machine interaction.
Cai-ling Wang, Jingjing Yan
semanticscholar   +1 more source

P-CNN: Pose-based CNN Features for Action Recognition [PDF]

open access: yes, 2015
This work targets human action recognition in video. While recent methods typically represent actions by statistics of local video features, here we argue for the importance of a representation derived from human pose.
Chéron, Guilhem   +2 more
core   +5 more sources

Action Recognition Based on Joint Trajectory Maps Using Convolutional Neural Networks [PDF]

open access: yes, 2016
Recently, Convolutional Neural Networks (ConvNets) have shown promising performances in many computer vision tasks, especially image-based recognition. How to effectively use ConvNets for video-based recognition is still an open problem.
Du Y.   +6 more
core   +3 more sources

Human action recognition using trajectory-based representation

open access: yesEgyptian Informatics Journal, 2015
Recognizing human actions in video sequences has been a challenging problem in the last few years due to its real-world applications. A lot of action representation approaches have been proposed to improve the action recognition performance.
Haiam A. Abdul-Azim, Elsayed E. Hemayed
doaj   +1 more source

Semi-Supervised Adaptation for Skeletal-Data-Based Human Action Recognition

open access: yesEngineering Proceedings, 2023
Recent research on human action recognition is largely facilitated by skeletal data, a compact representation composed of key joints of the human body.
Haitao Tian, Pierre Payeur
doaj   +1 more source

Robust recognition and segmentation of human actions using HMMs with missing observations [PDF]

open access: yes, 2005
This paper describes the integration of missing observation data with hidden Markov models to create a framework that is able to segment and classify individual actions from a stream of human motion using an incomplete 3D human pose estimation.
Bui, Hung H.   +3 more
core   +3 more sources

Continuous Human Action Recognition for Human-machine Interaction: A Review [PDF]

open access: yesACM Computing Surveys, 2022
With advances in data-driven machine learning research, a wide variety of prediction models have been proposed to capture spatio-temporal features for the analysis of video streams.
Harshala Gammulle   +5 more
semanticscholar   +1 more source

Unsafe action recognition in underground coal mine based on cross-attention mechanism

open access: yesGong-kuang zidonghua, 2022
The real-time video monitoring and alarming of unsafe actions of coal mine personnel is an important means to improve the level of safety in production. The coal mine underground environment is complex, and the monitoring video quality is poor.
RAO Tianrong, PAN Tao, XU Huijun
doaj   +1 more source

Histogram of Oriented Principal Components for Cross-View Action Recognition [PDF]

open access: yes, 2015
Existing techniques for 3D action recognition are sensitive to viewpoint variations because they extract features from depth images which are viewpoint dependent. In contrast, we directly process pointclouds for cross-view action recognition from unknown
Huynh, Du   +3 more
core   +1 more source

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