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Journal of Biomedical Optics

Scanning laser image correlation for measurement of flow
Author(s): Molly J. Rossow; William W. Mantulin; Enrico Gratton
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Paper Abstract

Scanning laser image correlation (SLIC) is an optical correlation technique for measuring the fluid velocity of particles suspended in a liquid. This technique combines laser scanning of an arbitrary pattern with pair cross-correlation between any two points in the pattern. SLIC overcomes many of the limitations of other optical correlation techniques for flow measurement, such as laser speckle, spatial temporal image correlation spectroscopy, and two-foci methods. One of the main advantages of SLIC is that the concept can be applied to measurements on a range of scales through simple zooming or modifications in the instrumentation. Additionally, SLIC is relatively insensitive to instrument noise through the use of correlation analysis and is insensitive to background. SLIC can provide detailed information about the direction and pattern of flow. SLIC has potential applications ranging from microfluidics to blood flow measurements.

Paper Details

Date Published: 1 March 2010
PDF: 8 pages
J. Biomed. Opt. 15(2) 026003 doi: 10.1117/1.3365946
Published in: Journal of Biomedical Optics Volume 15, Issue 2
Show Author Affiliations
Molly J. Rossow, Univ. of California, Irvine (United States)
William W. Mantulin, Beckman Laser Institute and Medical Clinic (United States)
Enrico Gratton, Univ. of California, Irvine (United States)

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