Comprehensive Review of Vision-Based Fall Detection Systems

Vision-based fall detection systems have experienced fast development over the last years. To determine the course of its evolution and help new researchers, the main audience of this paper, a comprehensive revision of all published articles in the main scientific databases regarding this area durin...

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Main Authors: Jesús Gutiérrez, Víctor Rodríguez, Sergio Martin
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/3/947
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author Jesús Gutiérrez
Víctor Rodríguez
Sergio Martin
author_facet Jesús Gutiérrez
Víctor Rodríguez
Sergio Martin
author_sort Jesús Gutiérrez
collection DOAJ
description Vision-based fall detection systems have experienced fast development over the last years. To determine the course of its evolution and help new researchers, the main audience of this paper, a comprehensive revision of all published articles in the main scientific databases regarding this area during the last five years has been made. After a selection process, detailed in the Materials and Methods Section, eighty-one systems were thoroughly reviewed. Their characterization and classification techniques were analyzed and categorized. Their performance data were also studied, and comparisons were made to determine which classifying methods best work in this field. The evolution of artificial vision technology, very positively influenced by the incorporation of artificial neural networks, has allowed fall characterization to become more resistant to noise resultant from illumination phenomena or occlusion. The classification has also taken advantage of these networks, and the field starts using robots to make these systems mobile. However, datasets used to train them lack real-world data, raising doubts about their performances facing real elderly falls. In addition, there is no evidence of strong connections between the elderly and the communities of researchers.
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spelling doaj.art-78c3bcdd28ea4a4cbd0e3fbefe29672c2023-12-03T11:53:08ZengMDPI AGSensors1424-82202021-02-0121394710.3390/s21030947Comprehensive Review of Vision-Based Fall Detection SystemsJesús Gutiérrez0Víctor Rodríguez1Sergio Martin2Universidad Nacional de Educación a Distancia, Juan Rosal 12, 28040 Madrid, SpainEduQTech, E.U. Politécnica, Maria Lluna 3, 50018 Zaragoza, SpainUniversidad Nacional de Educación a Distancia, Juan Rosal 12, 28040 Madrid, SpainVision-based fall detection systems have experienced fast development over the last years. To determine the course of its evolution and help new researchers, the main audience of this paper, a comprehensive revision of all published articles in the main scientific databases regarding this area during the last five years has been made. After a selection process, detailed in the Materials and Methods Section, eighty-one systems were thoroughly reviewed. Their characterization and classification techniques were analyzed and categorized. Their performance data were also studied, and comparisons were made to determine which classifying methods best work in this field. The evolution of artificial vision technology, very positively influenced by the incorporation of artificial neural networks, has allowed fall characterization to become more resistant to noise resultant from illumination phenomena or occlusion. The classification has also taken advantage of these networks, and the field starts using robots to make these systems mobile. However, datasets used to train them lack real-world data, raising doubts about their performances facing real elderly falls. In addition, there is no evidence of strong connections between the elderly and the communities of researchers.https://www.mdpi.com/1424-8220/21/3/947artificial visionneural networksfall detectionfall characterizationfall classificationfall dataset
spellingShingle Jesús Gutiérrez
Víctor Rodríguez
Sergio Martin
Comprehensive Review of Vision-Based Fall Detection Systems
Sensors
artificial vision
neural networks
fall detection
fall characterization
fall classification
fall dataset
title Comprehensive Review of Vision-Based Fall Detection Systems
title_full Comprehensive Review of Vision-Based Fall Detection Systems
title_fullStr Comprehensive Review of Vision-Based Fall Detection Systems
title_full_unstemmed Comprehensive Review of Vision-Based Fall Detection Systems
title_short Comprehensive Review of Vision-Based Fall Detection Systems
title_sort comprehensive review of vision based fall detection systems
topic artificial vision
neural networks
fall detection
fall characterization
fall classification
fall dataset
url https://www.mdpi.com/1424-8220/21/3/947
work_keys_str_mv AT jesusgutierrez comprehensivereviewofvisionbasedfalldetectionsystems
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