On enhancing cardiac pulse measurements through thermal imaging

Thirimachos Bourlai, Pradeep Buddharaju, Ioannis Pavlidis, Barbara L. Bass

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

This paper presents methodological advances on pulse measurement through thermal imaging of the face - a modality that recovers thermo-physiological function. Two previous methods that capitalized on heat transfer effects along and across the vessel during pulse propagation have been brought together in a fusion scheme. In addition, the quality of the extracted physiological signals has improved thanks to sophisticated tracking and noise reduction algorithms. Finally, parameter optimization has fine-tuned harmonic analysis of the signals, thus, strengthening the measurement accuracy. Comparative experiments that were conducted on a dataset of 12 subjects highlighted the virtues of the new methodology versus the legacy ones. Specifically, the new method reduced the instantaneous measurement error from 10.5% to 7.8%, while it improved mean accuracy from 88.6% to 95.3%. This advancement brings clinical applications of the technology within sight.

Original languageEnglish (US)
Title of host publicationFinal Program and Abstract Book - 9th International Conference on Information Technology and Applications in Biomedicine, ITAB 2009
DOIs
StatePublished - Dec 1 2009
Event9th International Conference on Information Technology and Applications in Biomedicine, ITAB 2009 - Larnaca, Cyprus
Duration: Nov 4 2009Nov 7 2009

Other

Other9th International Conference on Information Technology and Applications in Biomedicine, ITAB 2009
CountryCyprus
CityLarnaca
Period11/4/0911/7/09

Keywords

  • Pulse recovery
  • Thermal imaging
  • Tracking

ASJC Scopus subject areas

  • Computer Science Applications
  • Biomedical Engineering
  • Health Informatics
  • Health Information Management

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