Post-Fall Intelligence Supporting Fall Severity Diagnosis Using Kinect Sensor

Watanapa, Bunthit; Patsadu, Orasa; Dajpratham, Piyapat; Nukoolkit, Chakarida

doi:10.1155/2018/5434897

Cited by 3 publications

(1 citation statement)

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“…Post fall intelligence is an important research area in the field of fall detection as it can be useful in determining various post fall injuries [ 18 ] and serve as an intelligence parameter [ 19 ] for doctors. Koo et al [ 20 ] present experiments for post fall detection from a combination of self collected data and the SisFall dataset.…”

Section: Literature Reviewmentioning

confidence: 99%

A Hierarchical Approach to Activity Recognition and Fall Detection Using Wavelets and Adaptive Pooling

Syed

Sierra-Sosa

Kumar

et al. 2021

Sensors

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Human activity recognition has been a key study topic in the development of cyber physical systems and assisted living applications. In particular, inertial sensor based systems have become increasingly popular because they do not restrict users’ movement and are also relatively simple to implement compared to other approaches. In this paper, we present a hierarchical classification framework based on wavelets and adaptive pooling for activity recognition and fall detection predicting fall direction and severity. To accomplish this, windowed segments were extracted from each recording of inertial measurements from the SisFall dataset. A combination of wavelet based feature extraction and adaptive pooling was used before a classification framework was applied to determine the output class. Furthermore, tests were performed to determine the best observation window size and the sensor modality to use. Based on the experiments the best window size was found to be 3 s and the best sensor modality was found to be a combination of accelerometer and gyroscope measurements. These were used to perform activity recognition and fall detection with a resulting weighted F1 score of 94.67%. This framework is novel in terms of the approach to the human activity recognition and fall detection problem as it provides a scheme that is computationally less intensive while providing promising results and therefore can contribute to edge deployment of such systems.

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Section: Literature Reviewmentioning

confidence: 99%