Results 51 to 60 of about 440,945 (164)

Contextual Action Cues from Camera Sensor for Multi-Stream Action Recognition

open access: yesSensors, 2019
In action recognition research, two primary types of information are appearance and motion information that is learned from RGB images through visual sensors. However, depending on the action characteristics, contextual information, such as the existence
Jongkwang Hong   +3 more
doaj   +1 more source

RGB-D Data-Based Action Recognition: A Review

open access: yesSensors, 2021
Classification of human actions is an ongoing research problem in computer vision. This review is aimed to scope current literature on data fusion and action recognition techniques and to identify gaps and future research direction.
Muhammad Bilal Shaikh, Douglas Chai
doaj   +1 more source

3D trajectories for action recognition [PDF]

open access: yes2014 IEEE International Conference on Image Processing (ICIP), 2014
Recent development in affordable depth sensors opens new possibilities in action recognition problem. Depth information improves skeleton detection, therefore many authors focused on analyzing pose for action recognition. But still skeleton detection is not robust and fail in more challenging scenarios, where sensor is placed outside of optimal working
Koperski, Michal   +2 more
openaire   +2 more sources

A Review of Human Activity Recognition Methods

open access: yesFrontiers in Robotics and AI, 2015
Recognizing human activities from video sequences or still images is a challenging task due to problems such as background clutter, partial occlusion, changes in scale, viewpoint, lighting, and appearance.
Michalis eVrigkas   +2 more
doaj   +1 more source

Factorized 3D-CNN for Real-Time Fall Detection and Action Recognition on Embedded System

open access: yesIEEE Access
We present a novel approach for skeleton-based action recognition and fall detection, optimized for real-time performance on embedded devices. Our method employs a factorized 3D convolutional neural network (3D-CNN) to efficiently extract spatiotemporal ...
Nadhira Noor, In Kyu Park
doaj   +1 more source

Action Recognition in a Crowded Environment

open access: yesi-Perception, 2017
So far, action recognition has been mainly examined with small point-light human stimuli presented alone within a narrow central area of the observer’s visual field.
Laura Fademrecht   +4 more
doaj   +1 more source

Local Feature Refinement Action Recognition Method Based on Graph Convolution [PDF]

open access: yesJisuanji gongcheng
Although action recognition is an important research area in computer vision, current mainstream methods lack a sufficient emphasis on local features.
HE Zize, ZHAN Yinwei
doaj   +1 more source

Human action recognition

open access: yes, 2021
Aquest projecte se centra en el procés de reconeixement i classificació de les accions que realitza una persona en un moment concret, també conegut com Human Activity Recognition. Per a realitzar el reconeixement d'activitat i pose s'ha fet ús d'un algorisme de pose estimation, el qual proporciona l'esquelet de la persona i és d'ajuda per a classificar
Picazos Carrillo, Jose Antonio   +1 more
openaire   +1 more source

Action Recognition by Hierarchical Mid-Level Action Elements [PDF]

open access: yes2015 IEEE International Conference on Computer Vision (ICCV), 2015
Realistic videos of human actions exhibit rich spatiotemporal structures at multiple levels of granularity: an action can always be decomposed into multiple finer-grained elements in both space and time. To capture this intuition, we propose to represent videos by a hierarchy of mid-level action elements (MAEs), where each MAE corresponds to an action ...
Lan, Tian   +3 more
openaire   +2 more sources

Early Action Recognition with Action Prototypes

open access: yes, 2023
Early action recognition is an important and challenging problem that enables the recognition of an action from a partially observed video stream where the activity is potentially unfinished or even not started. In this work, we propose a novel model that learns a prototypical representation of the full action for each class and uses it to regularize ...
Camporese, Guglielmo   +4 more
openaire   +2 more sources

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