Dynamic speckle patterns formed by a mixture of moving and stationary scatterers: theory and experiment

Seed characterization by dynamic speckle patterns: a proposal

10.1117/12.411739 ◽

2000 ◽

Author(s):

Roberto A. Braga, Jr. ◽

Flavio M. Borem ◽

Inacio M. Dal Fabbro ◽

Ricardo A. Arizaga ◽

Hector J. Rabal ◽

...

Keyword(s):

Dynamic Speckle ◽

Speckle Patterns

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Temporal difference method for processing dynamic speckle patterns

Optics Communications ◽

10.1016/j.optcom.2010.07.073 ◽

2010 ◽

Vol 283 (24) ◽

pp. 4972-4977 ◽

Cited By ~ 26

Author(s):

L. Martí-López ◽

H. Cabrera ◽

R.A. Martínez-Celorio ◽

R. González-Peña

Keyword(s):

Difference Method ◽

Temporal Difference ◽

Dynamic Speckle ◽

Speckle Patterns

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Drying paint by means of dynamic speckle patterns

10.1117/12.358389 ◽

1999 ◽

Author(s):

Ricardo A. Arizaga ◽

Hector J. Rabal ◽

Marcelo Trivi ◽

Carlos A. Lasquibar ◽

Javier I. Amalvy

Keyword(s):

Dynamic Speckle ◽

Speckle Patterns

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Modeling Dynamic Laser Speckle Patterns of Plant Leaves

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.694-697.1363 ◽

2013 ◽

Vol 694-697 ◽

pp. 1363-1367 ◽

Cited By ~ 1

Author(s):

Xu Zhong ◽

Xue Zhi Wang ◽

Peter Farrell ◽

Nicola Cooley ◽

Bill Moran

Keyword(s):

Leaf Surface ◽

Temporal Evolution ◽

Water Status ◽

Sample Surface ◽

Laser Speckle ◽

Plant Leaves ◽

Electromagnetic Wave Scattering ◽

Dynamic Speckle ◽

Speckle Patterns ◽

The Relationship

t is known that dynamic speckle patterns can be used to identify the temporal evolution of an active sample and some desired properties of the sample may therefore be detected via the dynamic laser speckle analysis. Mathematically understand the structure of sample surface which gives arise to the dynamic speckle patterns is crucial to the analysis. In this paper, a simulation model of the dynamic speckle patterns for plant leaves is proposed. The developed model is derived from the principle of coherent electromagnetic wave scattering off a randomly textured and time varying surface and is demonstrated via the simulation of dynamic speckle patterns of a fresh unattached leaf surface along the true laser speckle measurements. Both simulated and true measurements of the dynamic speckle patterns of the leaf are analyzed via several statistical techniques and a consistent agreement between the results of the two is observed. The proposed statistical model is helpful to gain the insight of the relationship between speckle dynamics and the activity of the leaf surface which is supposed to be an measurement of plant water stress and water status.

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