scholarly journals Speckle noise reduction in coherent imaging systems via hybrid median–mean filter

2021 ◽  
Vol 60 (12) ◽  
Author(s):  
Raul Castaneda ◽  
Jorge Garcia-Sucerquia ◽  
Ana Doblas
Keyword(s):  
Noise Reduction ◽  
Speckle Noise ◽  
Imaging Systems ◽  
Coherent Imaging ◽  
Mean Filter ◽  
Speckle Noise Reduction

scholarly journals Local statistics and non-local mean filter for speckle noise reduction in medical ultrasound image

2016 ◽  
Vol 195 ◽  
pp. 88-95 ◽  
Author(s):  
Jian Yang ◽  
Jingfan Fan ◽  
Danni Ai ◽  
Xuehu Wang ◽  
Yongchang Zheng ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Ultrasound Image ◽  
Speckle Noise ◽  
Medical Ultrasound ◽  
Local Statistics ◽  
Mean Filter ◽  
Local Mean ◽  
Non Local ◽  
Speckle Noise Reduction

Speckle noise reduction in coherent imaging based on deep learning without clean data

2020 ◽  
Vol 133 ◽  
pp. 106151
Author(s):  
Da Yin ◽  
Zhongzheng Gu ◽  
Yanran Zhang ◽  
Fengyan Gu ◽  
Shouping Nie ◽  
...  
Keyword(s):  
Deep Learning ◽  
Noise Reduction ◽  
Speckle Noise ◽  
Coherent Imaging ◽  
Speckle Noise Reduction

scholarly journals Speckle Noise Reduction in Digital Holography Using a DMD and Multi-Hologram Resampling

2020 ◽  
Vol 10 (22) ◽  
pp. 8277
Author(s):  
John Restrepo ◽  
Nelson Correa-Rojas ◽  
Jorge Herrera-Ramirez
Keyword(s):  
Noise Reduction ◽  
Noise Level ◽  
Digital Holography ◽  
Imaging Techniques ◽  
Hybrid Approach ◽  
Speckle Noise ◽  
Digital Micromirror Device ◽  
Coherent Imaging ◽  
Speckle Noise Reduction

Speckle noise is a well-documented problem on coherent imaging techniques like Digital Holography. A method to reduce the speckle noise level is presented, based on introducing a Digital Micromirror Device to phase modulate the illumination over the object. Multiple holograms with varying illuminations are recorded and the reconstructed intensities are averaged to obtain a final improved image. A simple numerical resampling scheme is proposed to further improve noise reduction. The obtained results demonstrate the effectiveness of the hybrid approach.

Total variation with overlapping group sparsity for speckle noise reduction

2016 ◽  
Vol 216 ◽  
pp. 502-513 ◽  
Author(s):  
Jun Liu ◽  
Ting-Zhu Huang ◽  
Gang Liu ◽  
Si Wang ◽  
Xiao-Guang Lv
Keyword(s):  
Noise Reduction ◽  
Total Variation ◽  
Speckle Noise ◽  
Group Sparsity ◽  
Overlapping Group Sparsity ◽  
Speckle Noise Reduction
Sign in / Sign up

Export Citation Format

Share Document