Suppression of Speckle Noise with Spatial Light Modulator in Digital Holography

2014 ◽  
Author(s):  
Yunxin Wang ◽  
Dayong Wang ◽  
Lu Rong ◽  
Yuhong Wan
Keyword(s):  
Spatial Light Modulator ◽  
Digital Holography ◽  
Speckle Noise ◽  
Light Modulator

Speckle noise reduction in digital holography with spatial light modulator and nonlocal means algorithm

2014 ◽  
Vol 12 (4) ◽  
pp. 040301-40305 ◽  
Author(s):  
Junmin Leng Junmin Leng ◽  
Xinzhu Sang Xinzhu Sang ◽  
Binbin Yan Binbin Yan
Keyword(s):  
Noise Reduction ◽  
Spatial Light Modulator ◽  
Digital Holography ◽  
Speckle Noise ◽  
Light Modulator ◽  
Nonlocal Means ◽  
Speckle Noise Reduction

scholarly journals Speckle noise suppression in digital holography by angular diversity with phase-only spatial light modulator

2013 ◽  
Vol 21 (17) ◽  
pp. 19568 ◽  
Author(s):  
Yunxin Wang ◽  
Puhui Meng ◽  
Dayong Wang ◽  
Lu Rong ◽  
Spozmai Panezai
Keyword(s):  
Spatial Light Modulator ◽  
Digital Holography ◽  
Noise Suppression ◽  
Speckle Noise ◽  
Light Modulator ◽  
Angular Diversity

scholarly journals Evolution of spatial light modulator for high‐definition digital holography

ETRI Journal ◽  
2019 ◽  
Vol 41 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Ji Hun Choi ◽  
Jae‐Eun Pi ◽  
Chi‐Young Hwang ◽  
Jong‐Heon Yang ◽  
Yong‐Hae Kim ◽  
...  
Keyword(s):  
Spatial Light Modulator ◽  
Digital Holography ◽  
High Definition ◽  
Light Modulator

21‐2: Invited Paper: 1µm Pixel Pitch Spatial Light Modulator Panel for Digital Holography

2020 ◽  
Vol 51 (1) ◽  
pp. 297-300
Author(s):  
Chi-Sun Hwang ◽  
Ji Hun Choi ◽  
Jae-Eun Pi ◽  
Jong-Heon Yang ◽  
Gi Heon Kim ◽  
...  
Keyword(s):  
Spatial Light Modulator ◽  
Digital Holography ◽  
Light Modulator ◽  
Pixel Pitch

scholarly journals Compression of computer-generated holograms in image projection

2017 ◽  
Vol 9 (2) ◽  
pp. 60 ◽  
Author(s):  
Paula Adrianna Kochańska ◽  
Michal Makowski
Keyword(s):  
Spatial Light Modulator ◽  
Graphics Processing Unit ◽  
Random Phase ◽  
Speckle Noise ◽  
Processing Unit ◽  
Light Modulator ◽  
Computer Generated Holography ◽  
Image Projection ◽  
Bit Planes ◽  
Graphics Processing

Computer-generated holography is a technique of a lossless and lens-less forming of images. Methods that use local devices to compute such holograms are very power- and time-consuming. In order to make it possible to transfer the calculations to the cloud, it is necessary to elaborate efficient algorithms of a lossless compression. In this paper two methods of compression are presented and supported by both simulation and experimental results. A lossy compression method omitting certain bit-planes of the holographic data is also presented, which allows insignificant loss of information, while achieving a greater compression ratio. Full Text: PDF ReferencesM. Makowski "Simple holographic projection in color.", Opt. Express 20, 25130-25136 (2012). CrossRef M. Makowski, I. Ducin, K. Kakarenko, J. Suszek, A. Kowalczyk, "Performance of the 4k phase-only spatial light modulator in image projection by computer-generated holography, " Phot. Lett. Poland 8, 26-28 (2016). CrossRef A. Kowalczyk, M. Bieda, M. Makowski, I. Ducin, K. Kakarenko, J. Suszek, A. Sobczyk, "Analysis of computational complexity in holographic lens-less projection," Phot. Lett. Poland 6, 84-86 (2014). CrossRef M. Makowski, "Minimized speckle noise in lens-less holographic projection by pixel separation," Opt. Express 21, 29205-29216 (2013). CrossRef H. Niwase, N. Takada, H. Araki, Y. Maeda, M. Fujiwara, H. Nakayama, T. Kakue, T. Shimobaba, T. Ito "Real-time electroholography using a multiple-graphics processing unit cluster system with a single spatial light modulator and the InfiniBand network." Opt. Eng. 55, 093108-093108 (2016). CrossRef T. Shimobaba and T. Ito, "Random phase-free computer-generated hologram", Opt. Express 23(7) 9549-9554 (2015) CrossRef S.R. Kodituwakku, "Comparison of lossless data compression algorithms for text data", Indian Journal of Computer Science and Engineering Vol 1 No 4 416-426 (2010) DirectLink

Characterization of a spatial light modulator using polarization-sensitive digital holography

2020 ◽  
Vol 59 (7) ◽  
pp. 2024 ◽  
Author(s):  
Vipin Tiwari ◽  
Surya Kumar Gautam ◽  
Dinesh N. Naik ◽  
Rakesh Kumar Singh ◽  
Nandan S. Bisht
Keyword(s):  
Spatial Light Modulator ◽  
Digital Holography ◽  
Light Modulator
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