Quaternion singular spectrum analysis of pupillary dynamics for health monitoring

Kevin HUNG, Gary Man-Tat MAN, John Kwok-Tai CHUI, Hung Kay Daniel CHOW, Bingo Wing-Kuen LING, Sio-Hang PUN

Research output: Chapter in Book/Report/Conference proceedingChapters

Abstract

Pupillary dynamics have been monitored in mobile health for clinical diagnosis and health evaluation. However, such signals captured in a mobile scenario would be susceptible to noise from the surrounding environment. Pupil size data also consist of missing data due to blinks. In addition to pupil size, researchers have suggested including multimodal information such as gaze and head movements for enhanced monitoring cognitive and neural activities. Multichannel signal processing is required for the simultaneous processing of these signals, while their mutual relations are exploited. This paper explores a novel multichannel signal processing technique, quaternion singular spectrum analysis (QSSA), for processing eye-movement data, which include pupil diameter and gaze positions. The performance based on real data is compared with traditional methods. This is a novel application of QSSA in processing eye movement data for mobile health. Copyright © 2022 IEEE.

Original languageEnglish
Title of host publicationProceedings of the 4th IEEE Eurasia Conference on IoT, Communication and Engineering 2022 (IEEE ECICE 2022)
EditorsTeen-Hang MEEN
Place of PublicationDanvers, MA
PublisherIEEE
Pages612-616
ISBN (Electronic)9781665482080
ISBN (Print)9781665482097
DOIs
Publication statusPublished - 2023

Citation

Hung, K., Man, G. M.-T., Chui, J. K.-T., Chow, D. H.-K., Ling, B. W.-K., & Pun, S.-H. (2023). Quaternion singular spectrum analysis of pupillary dynamics for health monitoring. In T.-H. Meen (Ed.), Proceedings of the 4th IEEE Eurasia Conference on IoT, Communication and Engineering 2022 (IEEE ECICE 2022) (pp. 612-616). IEEE. https://doi.org/10.1109/ECICE55674.2022.10042889

Keywords

  • Quaternion singular spectrum analysis
  • Multichannel signal processing
  • Pupillary dynamics
  • Health monitoring
  • Mobile health

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