Automatic Elderly Fall and Unstable Movement Detection System Using Framewise and LSTM Based Video Analytics on an Embedded Device

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Aniqua Nusrat Zereen
Anubinda Gurung
Amir Rajak
Jednipat Moonrinta
Matthew Nelson Dailey
Mongkol Ekpanyapong
Roongtiwa Vachalathiti
Sunee Bovonsunthonchai

Abstract

We introduce an edge processing device and cloud computation framework enabling activity profiling, unstable motion alerts, and fall alerts for elderly people living at home under their families’ care. The system analyzes video frames captured by fixed cameras, tracking each visible person and classifying their actions into one of nine ordinary activities, a fall, or unstable movement. Alert notifications are sent to caregivers if a fall or unstable movement is detected. The system comprises an embedded device (NVIDIA TX2) and cloud-based storage and analysis infrastructure. The main modules include video-based human detection, tracking, and recognition; fall detection; activity classification; and detection of painful, unstable, and confused motion likely to lead to falls. The system is designed for accuracy, usability, and cost. Individual module tests and a field test with a volunteer household indicate that the prototype system is ready for the next stage of commercial exploitation, with an accuracy of 91.6% for ordinary actions and falls as well as a recall of 97.02% for unstable motion.

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How to Cite
Zereen, A. N., Gurung, A., Rajak, A., Moonrinta, J., Dailey, M. N., Ekpanyapong, M., Vachalathiti, R., & Bovonsunthonchai, S. (2021). Automatic Elderly Fall and Unstable Movement Detection System Using Framewise and LSTM Based Video Analytics on an Embedded Device. NBTC Journal, 5(5), 117–134. Retrieved from https://so04.tci-thaijo.org/index.php/NBTC_Journal/article/view/253616
Section
Academic article

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