Recognition of Activities of Daily Living with Egocentric Vision: A Review

Video-based recognition of activities of daily living (ADLs) is being used in ambient assisted living systems in order to support the independent living of older people. However, current systems based on cameras located in the environment present a number of problems, such as occlusions and a limite...

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Main Authors: Thi-Hoa-Cuc Nguyen, Jean-Christophe Nebel, Francisco Florez-Revuelta
Format: Article
Language:English
Published: MDPI AG 2016-01-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/16/1/72
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author Thi-Hoa-Cuc Nguyen
Jean-Christophe Nebel
Francisco Florez-Revuelta
author_facet Thi-Hoa-Cuc Nguyen
Jean-Christophe Nebel
Francisco Florez-Revuelta
author_sort Thi-Hoa-Cuc Nguyen
collection DOAJ
description Video-based recognition of activities of daily living (ADLs) is being used in ambient assisted living systems in order to support the independent living of older people. However, current systems based on cameras located in the environment present a number of problems, such as occlusions and a limited field of view. Recently, wearable cameras have begun to be exploited. This paper presents a review of the state of the art of egocentric vision systems for the recognition of ADLs following a hierarchical structure: motion, action and activity levels, where each level provides higher semantic information and involves a longer time frame. The current egocentric vision literature suggests that ADLs recognition is mainly driven by the objects present in the scene, especially those associated with specific tasks. However, although object-based approaches have proven popular, object recognition remains a challenge due to the intra-class variations found in unconstrained scenarios. As a consequence, the performance of current systems is far from satisfactory.
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spelling doaj.art-4fe88710910b4cceb41c8bcc8f1c46192022-12-22T02:57:41ZengMDPI AGSensors1424-82202016-01-011617210.3390/s16010072s16010072Recognition of Activities of Daily Living with Egocentric Vision: A ReviewThi-Hoa-Cuc Nguyen0Jean-Christophe Nebel1Francisco Florez-Revuelta2Faculty of Science, Engineering and Computing, Kingston University, Kingston upon Thames, London KT1 2EE, UKFaculty of Science, Engineering and Computing, Kingston University, Kingston upon Thames, London KT1 2EE, UKFaculty of Science, Engineering and Computing, Kingston University, Kingston upon Thames, London KT1 2EE, UKVideo-based recognition of activities of daily living (ADLs) is being used in ambient assisted living systems in order to support the independent living of older people. However, current systems based on cameras located in the environment present a number of problems, such as occlusions and a limited field of view. Recently, wearable cameras have begun to be exploited. This paper presents a review of the state of the art of egocentric vision systems for the recognition of ADLs following a hierarchical structure: motion, action and activity levels, where each level provides higher semantic information and involves a longer time frame. The current egocentric vision literature suggests that ADLs recognition is mainly driven by the objects present in the scene, especially those associated with specific tasks. However, although object-based approaches have proven popular, object recognition remains a challenge due to the intra-class variations found in unconstrained scenarios. As a consequence, the performance of current systems is far from satisfactory.http://www.mdpi.com/1424-8220/16/1/72egocentric visionwearable camerasambient assisted livingactivity recognition
spellingShingle Thi-Hoa-Cuc Nguyen
Jean-Christophe Nebel
Francisco Florez-Revuelta
Recognition of Activities of Daily Living with Egocentric Vision: A Review
Sensors
egocentric vision
wearable cameras
ambient assisted living
activity recognition
title Recognition of Activities of Daily Living with Egocentric Vision: A Review
title_full Recognition of Activities of Daily Living with Egocentric Vision: A Review
title_fullStr Recognition of Activities of Daily Living with Egocentric Vision: A Review
title_full_unstemmed Recognition of Activities of Daily Living with Egocentric Vision: A Review
title_short Recognition of Activities of Daily Living with Egocentric Vision: A Review
title_sort recognition of activities of daily living with egocentric vision a review
topic egocentric vision
wearable cameras
ambient assisted living
activity recognition
url http://www.mdpi.com/1424-8220/16/1/72
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