Generation and analysis of multi-wavelength thermal image data

Shahram Hejazi, Robert A. Spangler

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

Abstract

A graybody model is used to derive a set of equations which correlates the effect of emissivity variation and reflection of ambient radiation to the apparent temperature of the object. A four-wavelength digital thermal imager is designed and constructed to implement these considerations. Use of common focusing optics ensures image register and identical perspective at each detector for frame averaging and pixel-to-pixel comparison. Preliminary results taken from the phantom and the human hand suggest that the noise level of the system might be a limiting factor in the precision of true temperature measurement. Hence a frame averaging technique is used to get a higher signal-to-noise ratio.

Original languageEnglish (US)
Title of host publicationBiomedical Engineering Perspectives
Subtitle of host publicationHealth Care Technologies for the 1990's and Beyond
PublisherPubl by IEEE
Pages1580-1581
Number of pages2
Editionpt 4
ISBN (Print)0879425598
StatePublished - Dec 1 1990
Externally publishedYes
EventProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Philadelphia, PA, USA
Duration: Nov 1 1990Nov 4 1990

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 4
ISSN (Print)0589-1019

Conference

ConferenceProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityPhiladelphia, PA, USA
Period11/1/9011/4/90

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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