Bio-speckle phenomena and their applications to biomedical measurements.
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概要
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This paper reviews the work on the dynamic speckle phenomena observed in the light field scattered from living objects. The dynamic speckles produced from living objects are called "bio-speckles" and fluctuate temporally due to various physiological movements to maintain their lives. This fluctuation of bio-speckles is clearly different from that of speckles produced from the movement of usual diffuse objects such as a ground glass. Dynamic properties of biospeckles are briefly discussed on the basis of the power spectra measured and autocorrelation functions of speckle signals. As examples of the interesting applications of bio-speckles, various methods for non-contact measurements of blood flow and other biomedical activites are introduced.
- 社団法人 レーザー学会の論文
社団法人 レーザー学会 | 論文
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