Side information in coded aperture compressive spectral imaging

2017 ◽  
Author(s):  
Laura Galvis ◽  
Henry Arguello ◽  
Daniel Lau ◽  
Gonzalo R. Arce
Keyword(s):  
Side Information ◽  
Spectral Imaging ◽  
Coded Aperture

scholarly journals Coded aperture design in compressive spectral imaging based on side information

2017 ◽  
Vol 56 (22) ◽  
pp. 6332 ◽  
Author(s):  
Laura Galvis ◽  
Daniel Lau ◽  
Xu Ma ◽  
Henry Arguello ◽  
Gonzalo R. Arce
Keyword(s):  
Side Information ◽  
Spectral Imaging ◽  
Coded Aperture

Higher-order computational model for coded aperture spectral imaging

2013 ◽  
Vol 52 (10) ◽  
pp. D12 ◽  
Author(s):  
Henry Arguello ◽  
Hoover Rueda ◽  
Yuehao Wu ◽  
Dennis W. Prather ◽  
Gonzalo R. Arce
Keyword(s):  
Computational Model ◽  
Spectral Imaging ◽  
Higher Order ◽  
Coded Aperture

Optimization of matching coded aperture with detector based on compressed sensing spectral imaging technology

2020 ◽  
Vol 13 (2) ◽  
pp. 290-301
Author(s):  
刘铭鑫 LIU Ming-xin ◽  
张 新 ZHANG Xin ◽  
王灵杰 WANG Ling-jie ◽  
史广维 SHI Guang-wei ◽  
吴洪波 WU Hong-bo ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Spectral Imaging ◽  
Coded Aperture ◽  
Imaging Technology

scholarly journals Recovering spectral images from compressive measurements using designed coded apertures and Matrix Completion Theory

2017 ◽  
Vol 21 (2) ◽  
Author(s):  
Tatiana Gelvez ◽  
Hoover Rueda ◽  
Henry Arguello
Keyword(s):  
Imaging Techniques ◽  
Matrix Completion ◽  
Spectral Imaging ◽  
Spatial Location ◽  
Low Rank ◽  
Coded Aperture ◽  
Reconstruction Algorithms ◽  
Spectral Image ◽  
The Matrix ◽  
Spectral Imager

<p>Spectral imaging aims to capture and process a 3-dimensional spectral image with a large amount of spectral information for each spatial location. Compressive spectral imaging techniques (CSI) increases the sensing speed and reduces the amount of collected data compared to traditional spectral imaging methods. The coded aperture snapshot spectral imager (CASSI) is an optical architecture to sense a spectral image in a single 2D coded projection by applying CSI. Typically, the 3D scene is recovered by solving an L1-based optimization problem that assumes the scene is sparse in some known orthonormal basis. In contrast, the matrix completion technique (MC) allows to recover the scene without such prior knowledge. The MC reconstruction algorithms rely on a low-rank structure of the scene. Moreover, the CASSI system uses coded aperture patterns that determine the quality of the estimated scene. Therefore, this paper proposes the design of an optimal coded aperture set for the MC methodology. The designed set is attained by maximizing the distance between the translucent elements in the coded aperture. Visualization of the recovered spectral signals and simulations over different databases show average improvement when the designed coded set is used between 1-3 dBs compared to the complementary coded aperture set, and between 3-9 dBs compared to the conventional random coded aperture set.</p>

scholarly journals Video rate spectral imaging using a coded aperture snapshot spectral imager

2009 ◽  
Vol 17 (8) ◽  
pp. 6368 ◽  
Author(s):  
Ashwin A. Wagadarikar ◽  
Nikos P. Pitsianis ◽  
Xiaobai Sun ◽  
David J. Brady
Keyword(s):  
Spectral Imaging ◽  
Coded Aperture ◽  
Spectral Imager

SU-F-I-53: Coded Aperture Coherent Scatter Spectral Imaging of the Breast: A Monte Carlo Evaluation of Absorbed Dose

2016 ◽  
Vol 43 (6Part8) ◽  
pp. 3398-3399 ◽  
Author(s):  
R Morris ◽  
M Lakshmanan ◽  
G Fong ◽  
A Kapadia ◽  
J Greenberg
Keyword(s):  
Monte Carlo ◽  
Absorbed Dose ◽  
Spectral Imaging ◽  
Coded Aperture ◽  
Coherent Scatter ◽  
Monte Carlo Evaluation

scholarly journals Spatiotemporal blue noise coded aperture design for multi-shot compressive spectral imaging

2016 ◽  
Vol 33 (12) ◽  
pp. 2312 ◽  
Author(s):  
Claudia V. Correa ◽  
Henry Arguello ◽  
Gonzalo R. Arce
Keyword(s):  
Spectral Imaging ◽  
Coded Aperture ◽  
Blue Noise

scholarly journals Shifting colored coded aperture design for spectral imaging

2019 ◽  
Vol 58 (7) ◽  
pp. B28 ◽  
Author(s):  
Laura Galvis ◽  
Edson Mojica ◽  
Henry Arguello ◽  
Gonzalo R. Arce
Keyword(s):  
Spectral Imaging ◽  
Coded Aperture
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