Radar classifications of consecutive and contiguous human gross-motor activities

Moeness G. Amin, Ronny Guendel

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The authors consider radar classifications of activities of daily living, which can prove beneficial in fall detection, analysis of daily routines, and discerning physical and cognitive human conditions. They focus on contiguous motion classifications, which follow and commensurate with the human ethogram of possible motion sequences. Contiguous motions can be closely connected with no clear time gap separations. In the proposed approach, they utilise the Radon transform applied to the radar range‐map to detect the translation motion, whereas an energy detector is used to provide the onset and offset times of in‐place motions, such as sitting down and standing up. It is shown that motion classifications give different results when performed forward and backward in time. The number of classes, thereby classification rates, considered by a classifier, is made varying depending on the current motion state and the possible transitioning activities in and out of the state. Two different examples are given to delineate the performance of the proposed approach under typical sequences of human motions.
Original languageEnglish
Pages (from-to)1417-1429
Number of pages13
JournalIET Radar, Sonar and Navigation
Volume14
Issue number9
DOIs
Publication statusPublished - 2020
Externally publishedYes

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