Distributed Radar Information Fusion for Gait Recognition and Fall Detection

Haobo Li, Julien Le Kernec, Ajay Mehul, Francesco Fioranelli

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

This paper discusses a fusion framework with data from multiple, distributed radar sensors based on conventional classifiers, and transfer learning with pre-trained deep networks. The application considered is the classification of gait styles and the detection of critical accidents such as falls. The data were collected from a network comprised of one Ancortek frequency modulated continuous wave radar and three ultra wide-band Xethru radars. The radar systems within the network were placed in three different locations, notably, in front of participants, on the ceiling, and on the right-hand side of the monitored area. The proposed information fusion framework compares feature level fusion, soft fusion with the classifier confidence level, and hard fusion with Naïve Bayes combiner (NBC). Regarding the classifier, linear SVM, Random-Forest Bagging Trees, and five pre-trained neural networks are introduced to the fusion algorithm, where the VGG-16 network yields the best performance (about 84%) with the help of NBC. Compared to the best cases with conventional classifiers, it is reported that 20% and 16% subsequent improvement are achieved for individual usage of single radar and fusion
Original languageEnglish
Title of host publication2020 IEEE Radar Conference, RadarConf 2020
Place of PublicationPiscataway
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)978-1-7281-8942-0
ISBN (Print)978-1-7281-8943-7
DOIs
Publication statusPublished - 2020
Event2020 IEEE Radar Conference (RadarConf20) - Florence, Italy
Duration: 21 Sep 202025 Sep 2020

Publication series

NameIEEE National Radar Conference - Proceedings
Volume2020-September
ISSN (Print)1097-5659

Conference

Conference2020 IEEE Radar Conference (RadarConf20)
CountryItaly
CityFlorence
Period21/09/2025/09/20

Keywords

  • information fusion
  • machine learning
  • multiple radar sensing
  • radar network
  • transfer learning

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