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Proceedings Paper

Biospeckle phenomena and their applications to blood-flow measurements
Author(s): Yoshihisa Aizu; Toshimitsu Asakura
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Paper Abstract

This paper reports the study on dynamic speckle phenomena observed in the light fields scattered from living objects. The laser speckles produced from living objects are called 'bio-speckles' and fluctuate temporally due to various physiological movements. Time-varying properties of bio-speckles are experimentally investigated from the analyses of spectral powers and autocorrelation functions. Based on the knowledge of dynamic bio-speckles, some methods are also introduced for evaluating the blood flows in the skin surface, gastric mucous membrane, and human retina.

Paper Details

Date Published: 1 May 1991
PDF: 12 pages
Proc. SPIE 1431, Time-Resolved Spectroscopy and Imaging of Tissues, (1 May 1991); doi: 10.1117/12.44195
Show Author Affiliations
Yoshihisa Aizu, Muroran Institute of Technology (Japan)
Toshimitsu Asakura, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 1431:
Time-Resolved Spectroscopy and Imaging of Tissues
Britton Chance, Editor(s)

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