Speckle reduction from digital Holograms by simulating temporal incoherence

2007 ◽  
Author(s):  
B. M. Hennelly ◽  
D. P. Kelly ◽  
J. Maycock ◽  
T. J. Naughton ◽  
J. B. McDonald
Keyword(s):  
Speckle Reduction ◽  
Digital Holograms

scholarly journals Speckle Reduction of Reconstructions of Digital Holograms Using Gamma-Correction and Filtering

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 5227-5235 ◽  
Author(s):  
Xiaohui Huang ◽  
Zhenhong Jia ◽  
Junlin Zhou ◽  
Jie Yang ◽  
Nikola Kasabov
Keyword(s):  
Speckle Reduction ◽  
Gamma Correction ◽  
Digital Holograms

scholarly journals Speckle reduction of reconstructions of digital holograms using three dimensional filtering

2013 ◽  
Vol 300 ◽  
pp. 142-155 ◽  
Author(s):  
Jonathan Maycock ◽  
John B. McDonald ◽  
Bryan M. Hennelly
Keyword(s):  
Three Dimensional ◽  
Speckle Reduction ◽  
Digital Holograms

Image reconstruction from noisy digital holograms

1990 ◽  
Vol 137 (5) ◽  
pp. 351 ◽  
Author(s):  
C.P. Mariadassou ◽  
B. Yegnanarayana
Keyword(s):  
Image Reconstruction ◽  
Digital Holograms

Speckle reduction of SAR image based on morphological Haar wavelet

2013 ◽  
Vol 32 (3) ◽  
pp. 746-748 ◽  
Author(s):  
Min LI ◽  
Zi-you ZHANG ◽  
Lin-ju LU
Keyword(s):  
Haar Wavelet ◽  
Speckle Reduction ◽  
Sar Image

Selection of Suitable Window Size for Speckle Reduction and Deblurring using SOFM in Polarimetric SAR Images

2015 ◽  
Vol 43 (4) ◽  
pp. 739-750 ◽  
Author(s):  
Sanjay Shitole ◽  
Shaunak De ◽  
Y. S. Rao ◽  
B. Krishna Mohan ◽  
Anup Das
Keyword(s):  
Window Size ◽  
Speckle Reduction ◽  
Polarimetric Sar ◽  
Sar Images ◽  
Selection Of

scholarly journals Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 276
Author(s):  
Yun Liu ◽  
Peihua Bu ◽  
Mingxing Jiao ◽  
Junhong Xing ◽  
Ke Kou ◽  
...  
Keyword(s):  
Time Correlation ◽  
Digital Holographic Microscopy ◽  
Laser Source ◽  
Speckle Reduction ◽  
Single Shot ◽  
Coherent Noise ◽  
Real Time Measurement ◽  
Dynamic Speckle ◽  
Holographic Microscopy ◽  
Speckle Suppression

The coherent noise always exists in digital holographic microscopy due to the laser source, degrading the image quality. A method of speckle suppression using the dynamic speckle illumination, produced by double-moving diffusers, is presented in digital holographic microscopy. The space–time correlation functions are theoretically analyzed from the statistics distribution in the doubly and singly scattered system, respectively. The configuration of double-moving diffusers is demonstrated to have better performance in speckle suppression compared with the single diffuser and moving-static double diffusers cases. The experiment results verify the feasibility of the approach. The presented approach only requires a single shot interferogram to realize the speckle reduction, accordingly it has the potential application in real-time measurement.

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