Biospeckle phenomena and their applications to blood-flow measurements

Yoshihisa Aizu; Toshimitsu Asakura

doi:10.1117/12.44195

1 May 1991 Biospeckle phenomena and their applications to blood-flow measurements

Yoshihisa Aizu, Toshimitsu Asakura

Proceedings Volume 1431, Time-Resolved Spectroscopy and Imaging of Tissues; (1991) https://doi.org/10.1117/12.44195
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

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.

Citation Download Citation

Yoshihisa Aizu and Toshimitsu Asakura "Biospeckle phenomena and their applications to blood-flow measurements", Proc. SPIE 1431, Time-Resolved Spectroscopy and Imaging of Tissues, (1 May 1991); https://doi.org/10.1117/12.44195

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