Temporal difference method for processing dynamic speckle patterns

被引：30

作者：

Marti-Lopez, L. ^{[1
]}

Cabrera, H. ^{[2
]}

Martinez-Celorio, R. A. ^{[3
]}

Gonzalez-Pena, R. ^{[4
]}

机构：

[1] Ctr Aplicac Tecnol & Desarrollo Nucl, Havana, Cuba

[2] Ctr Estudios Interdisciplinarios Fis, Inst Venezolano Invest Cient, Merida 5101, Venezuela

[3] Univ Guanajuato, DICIS, Salamanca 36885, Gto, Mexico

[4] Univ Valencia, Dpto Fisiol, Unidad Biofis & Fis Med, Valencia, Spain

来源：

OPTICS COMMUNICATIONS | 2010年 / 283卷 / 24期

关键词：

Dynamic speckle; Image processing; BLOOD-FLOW;

D O I：

10.1016/j.optcom.2010.07.073

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A temporal difference method for processing dynamic speckle images is proposed In the method two speckle images of an object separated by a time interval are subtracted one from the other to detect whether the speckle structure has changed or not. The rationale of the method is discussed A variant of the method that allows measuring the area of an activity zone surrounded by a static region is tested in digital simulations As a demonstrative experiment that variant is employed to characterize the drying of a damp patch in filter paper (C) 2010 Elsevier B V All rights reserved

引用

页码：4972 / 4977

页数：6

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