scholarly journals Spectral OCT with speckle contrast reduction for evaluation of the healing process after PRK and transepithelial PRK

2014 ◽  
Vol 5 (4) ◽  
pp. 1089 ◽  
Author(s):  
Bartlomiej J. Kaluzny ◽  
Maciej Szkulmowski ◽  
Danuta M. Bukowska ◽  
Maciej Wojtkowski
Keyword(s):  
Healing Process ◽  
Speckle Contrast ◽  
Spectral Oct ◽  
Contrast Reduction

Segmented scanning protocols for speckle contrast reduction in Spectral OCT images

2011 ◽  
Author(s):  
Maciej Szkulmowski ◽  
Iwona Gorczyńska ◽  
Daniel Szlag ◽  
Ireneusz Grulkowski ◽  
Andrzej Kowalczyk ◽  
...  
Keyword(s):  
Speckle Contrast ◽  
Spectral Oct ◽  
Contrast Reduction

Hadamard speckle contrast reduction

2004 ◽  
Vol 29 (1) ◽  
pp. 11 ◽  
Author(s):  
Jahja I. Trisnadi
Keyword(s):  
Speckle Contrast ◽  
Contrast Reduction

Speckle contrast reduction in a large-core fiber delivering Q-switched pulses for fluid flow measurements

2006 ◽  
Vol 45 (18) ◽  
pp. 4209 ◽  
Author(s):  
Jonathan P. Parry ◽  
Jonathan D. Shephard ◽  
Julian D. C. Jones ◽  
Duncan P. Hand
Keyword(s):  
Fluid Flow ◽  
Large Core ◽  
Flow Measurements ◽  
Speckle Contrast ◽  
Core Fiber ◽  
Contrast Reduction

scholarly journals Speckle contrast reduction of laser light using a chiral nematic liquid crystal diffuser

2016 ◽  
Vol 109 (26) ◽  
pp. 261104 ◽  
Author(s):  
David J. Hansford ◽  
Julian A. J. Fells ◽  
Steve J. Elston ◽  
Stephen M. Morris
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Laser Light ◽  
Speckle Contrast ◽  
Chiral Nematic ◽  
Contrast Reduction

Laser speckle contrast reduction measurement using diffractive diffusers

2009 ◽  
Author(s):  
Weston Thomas ◽  
Christopher Middlebrook ◽  
John Smith
Keyword(s):  
Laser Speckle ◽  
Speckle Contrast ◽  
Contrast Reduction

Frequency Compounding for Speckle Contrast Reduction in Phased Array Images

1982 ◽  
Vol 4 (3) ◽  
pp. 267-281 ◽  
Author(s):  
Paul A. Magnin ◽  
Olaf T. von Ramm ◽  
Frederick L. Thurstone
Keyword(s):  
Phased Array ◽  
Speckle Pattern ◽  
Signal To Noise ◽  
Speckle Contrast ◽  
Contrast Reduction ◽  
Ultrasonic Images

Frequency compounding is investigated as one technique for reducing the speckle contrast in phased array ultrasonic images. The degree of speckle contrast reduction was found to be inversely proportional to the bandwidth of the transmitted acoustic burst. The speckle pattern was also found to be anisotropic in its response to frequency compounding. Increases in the speckle pattern signal-to-noise ratios of 26 percent were found in B-mode images and increases as high as 84 percent were found in A-mode images.

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