View-invariant; Human action recognition; monocular camera; pose estimation
Abstract :
[en] View-invariant action recognition using a single RGB camera represents a very challenging topic due to the lack of 3D information in RGB images. Lately, the recent advances in deep learning made it possible to extract a 3D skeleton from a single RGB image.
Taking advantage of this impressive progress, we propose a simple framework for fast and view-invariant action recognition using a single RGB camera. The proposed pipeline can be seen as the association of two key steps. The first step is the estimation of a 3D skeleton from a single RGB image using a CNN-based pose estimator such as VNect. The second one aims at computing view-invariant skeleton-based features based on the estimated 3D skeletons. Experiments are conducted on two well-known benchmarks, namely, IXMAS and Northwestern-UCLA datasets. The obtained results prove the validity of our concept, which suggests a new way to address the challenge of RGB-based view-invariant action recognition.
Disciplines :
Computer science
Author, co-author :
GHORBEL, Enjie ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
PAPADOPOULOS, Konstantinos ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
BAPTISTA, Renato ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Pathak, Himadri
Demisse, Girum
AOUADA, Djamila ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
OTTERSTEN, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
no
Language :
English
Title :
A View-invariant Framework for Fast Skeleton-based Action Recognition Using a Single RGB Camera
Publication date :
February 2019
Event name :
14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications.
Event date :
from 25-02-2019 to 27-02-2019
Audience :
International
Main work title :
14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, Prague, 25-27 February 2018
Peer reviewed :
Peer reviewed
Focus Area :
Computational Sciences
FnR Project :
FNR10415355 - 3d Action Recognition Using Refinement And Invariance Strategies For Reliable Surveillance, 2015 (01/06/2016-31/05/2019) - Bjorn Ottersten
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