Correlation-based pointwise processing of dynamic speckle patterns

doi:10.1364/OL.39.000115

2013-12-23

PRE

Elena Stoykova *

Branimir Ivanov

Tania Nikova

DOI：10.1364/OL.39.000115

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摘要

En 中文

Correlation-based pointwise processing of dynamic speckle patterns is proposed for spatial characterization of activity in a sample. The result is a set of 2D activity maps of the estimates of temporal correlation, or structure functions, at increasing time lags. Pointwise computation provides spatial resolution, limited by the pixel period of the optical sensor used for acquisition of the speckle patterns. Pointwise normalization of the estimates solves the problem with the nonuniform illumination and varying reflectivity across the sample. The high contrast detailed activity maps obtained from processing of synthetic and experimental speckle patterns confirms efficiency of the proposed approach. (C) 2013 Optical Society of America

Keyword:

BIOSPECKLE

DECOMPOSITION

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期刊

Optics Letters

IF:

3.3

论文数:

4.0W

被引数:

7.6W

机构

Bulgarian Academy of Sciences

学者数:

6.7K

论文数: 6.0K

被引数: 4.9K

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