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
收藏
页码：4972 / 4977
页数：6
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