Wavelet tree structure based speckle noise removal for optical coherence tomography

2018 ◽  
Author(s):  
Xin Yuan ◽  
Xuan Liu ◽  
Yang Liu
Keyword(s):  
Optical Coherence Tomography ◽  
Speckle Noise ◽  
Noise Removal ◽  
Tree Structure ◽  
Optical Coherence

scholarly journals A New Idea of Fast Three-Dimensional Median Filtering for Despeckling of Optical Coherence Tomography Images

2015 ◽  
Vol 20 (3) ◽  
pp. 25-34 ◽  
Author(s):  
Jarosław Gocławski ◽  
Joanna Sekulska-Nalewajko
Keyword(s):  
Optical Coherence Tomography ◽  
Graphics Processing Unit ◽  
Median Filter ◽  
Three Dimensional ◽  
Speckle Noise ◽  
Noise Removal ◽  
Processing Unit ◽  
Optical Coherence ◽  
Median Filtering ◽  
Local Intensity

Abstract Median filtering has been widely used in image processing for noise removal because it can significantly reduce the power of noise while limiting edge blurring. This filtering is still a challenging task in the case of three-dimensional images containing up to a billion of voxels, especially for large size filtering windows. The authors encountered the problem when applying median filter to speckle noise reduction in optical coherence tomography images acquired by the Spark OCT systems. In the paper a new approach to the GPU (Graphics Processing Unit) based median smoothing has been proposed, which uses two-step evaluation of local intensity histograms stored in the shared memory of a graphic device. The solution is able to output about 50 million voxels per second while processing the neighbourhood of 125 voxels by Quadro K6000 graphic card configured on the Kepler architecture.

scholarly journals Three-dimensional curvelet-based dictionary learning for speckle noise removal of optical coherence tomography

2020 ◽  
Vol 11 (2) ◽  
pp. 586
Author(s):  
Mahad Esmaeili ◽  
Alireza Mehri Dehnavi ◽  
Fedra Hajizadeh ◽  
Hossein Rabbani
Keyword(s):  
Optical Coherence Tomography ◽  
Dictionary Learning ◽  
Three Dimensional ◽  
Speckle Noise ◽  
Noise Removal ◽  
Optical Coherence

scholarly journals Efficient reduction of speckle noise in Optical Coherence Tomography

2012 ◽  
Vol 20 (2) ◽  
pp. 1337 ◽  
Author(s):  
Maciej Szkulmowski ◽  
Iwona Gorczynska ◽  
Daniel Szlag ◽  
Marcin Sylwestrzak ◽  
Andrzej Kowalczyk ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Speckle Noise ◽  
Optical Coherence ◽  
Efficient Reduction

Speckle noise reduction in optical coherence tomography of paint layers

2009 ◽  
Vol 49 (1) ◽  
pp. 99 ◽  
Author(s):  
Michael Hughes ◽  
Marika Spring ◽  
Adrian Podoleanu
Keyword(s):  
Optical Coherence Tomography ◽  
Noise Reduction ◽  
Speckle Noise ◽  
Optical Coherence ◽  
Speckle Noise Reduction

scholarly journals Motion artifact and speckle noise reduction in polarization sensitive optical coherence tomography by retinal tracking

2013 ◽  
Vol 5 (1) ◽  
pp. 106 ◽  
Author(s):  
Mitsuro Sugita ◽  
Stefan Zotter ◽  
Michael Pircher ◽  
Tomoyuki Makihira ◽  
Kenichi Saito ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Noise Reduction ◽  
Speckle Noise ◽  
Motion Artifact ◽  
Optical Coherence ◽  
Speckle Noise Reduction
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