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An adaptive ensemble approach to ambient intelligence assisted people search

Xue, Dongfei; Wang, Xiaonian; Zhu, Jin; Davis, Darryl; Wang, Bing; Zhao, Wenbing; Peng, Yonghong; Cheng, Yongqiang

Authors

Dongfei Xue

Xiaonian Wang

Jin Zhu

Wenbing Zhao

Yonghong Peng



Abstract

Some machine learning algorithms have shown a better overall recognition rate for facial 11 recognition than humans, provided that the models are trained with massive image databases of 12 human faces. However, it is still a challenge to use existing algorithms to perform localized people 13 search tasks where the recognition must be done in real time, and where only a small face database 14 is accessible. A localized people search is essential to enable robot–human interactions. In this article, 15 we propose a novel adaptive ensemble approach to improve facial recognition rates while 16 maintaining low computational costs, by combining lightweight local binary classifiers with global 17 pre-trained binary classifiers. In this approach, the robot is placed in an ambient intelligence 18 environment that makes it aware of local context changes. Our method addresses the extreme 19 unbalance of false positive results when it is used in local dataset classifications. Furthermore, it 20 reduces the errors caused by affine deformation in face frontalization, and by poor camera focus. 21 Our approach shows a higher recognition rate compared to a pre-trained global classifier using a 22 benchmark database under various resolution images, and demonstrates good efficacy in real-time 23 tasks. 24

Journal Article Type Article
Publication Date Sep 3, 2018
Journal Appl. Syst. Innov. FOR PEER REVIEW
Electronic ISSN 2571-5577
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 1
Issue 3
Article Number 33
Series ISSN 2571-5577
APA6 Citation Xue, D., Wang, X., Zhu, J., Davis, D., Wang, B., Zhao, W., …Cheng, Y. (2018). An adaptive ensemble approach to ambient intelligence assisted people search. Applied System Innovation, 1(3), https://doi.org/10.3390/asi1030033
DOI https://doi.org/10.3390/asi1030033
Keywords Machine learning; Mobile robots; Robot vision; Navigation; Classifier ensemble; People
Publisher URL http://www.mdpi.com/2571-5577/1/3/33
Copyright Statement This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Copyright Statement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).





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