Adaptive uniform grayscale coded aperture design for high dynamic range compressive spectral imaging

2016 ◽  
Author(s):  
Nelson Diaz ◽  
Hoover Rueda ◽  
Henry Arguello
Keyword(s):  
Dynamic Range ◽  
Spectral Imaging ◽  
High Dynamic Range ◽  
Coded Aperture ◽  
High Dynamic

scholarly journals High-dynamic range compressive spectral imaging by grayscale coded aperture adaptive filtering

2015 ◽  
Vol 35 (3) ◽  
pp. 53-60 ◽  
Author(s):  
Nelson Eduardo Diaz ◽  
Hoover Fabian Rueda Chacon ◽  
Henry Arguello Fuentes
Keyword(s):  
Dynamic Range ◽  
Imaging System ◽  
Three Dimensional ◽  
Spectral Imaging ◽  
Reconstruction Algorithm ◽  
High Dynamic Range ◽  
Data Cube ◽  
Coded Aperture ◽  
Coded Apertures

<p class="p1">The coded aperture snapshot spectral imaging system (CASSI) is an imaging architecture which senses the three dimensional informa-tion of a scene with two dimensional (2D) focal plane array (FPA) coded projection measurements. A reconstruction algorithm takes advantage of the compressive measurements sparsity to recover the underlying 3D data cube. Traditionally, CASSI uses block-un-block coded apertures (BCA) to spatially modulate the light. In CASSI the quality of the reconstructed images depends on the design of these coded apertures and the FPA dynamic range. This work presents a new CASSI architecture based on grayscaled coded apertu-res (GCA) which reduce the FPA saturation and increase the dynamic range of the reconstructed images. The set of GCA is calculated in a real-time adaptive manner exploiting the information from the FPA compressive measurements. Extensive simulations show the attained improvement in the quality of the reconstructed images when GCA are employed.  In addition, a comparison between traditional coded apertures and GCA is realized with respect to noise tolerance.</p>

scholarly journals High Dynamic Range Spectral Imaging Pipeline For Multispectral Filter Array Cameras

Sensors ◽  
2017 ◽  
Vol 17 (6) ◽  
pp. 1281 ◽  
Author(s):  
Pierre-Jean Lapray ◽  
Jean-Baptiste Thomas ◽  
Pierre Gouton
Keyword(s):  
Dynamic Range ◽  
Spectral Imaging ◽  
High Dynamic Range ◽  
Filter Array ◽  
High Dynamic ◽  
Multispectral Filter Array

scholarly journals High-Dynamic-Range Spectral Imaging System for Omnidirectional Scene Capture

2018 ◽  
Vol 4 (4) ◽  
pp. 53 ◽  
Author(s):  
Keita Hirai ◽  
Naoto Osawa ◽  
Motoki Hori ◽  
Takahiko Horiuchi ◽  
Shoji Tominaga
Keyword(s):  
Dynamic Range ◽  
Imaging System ◽  
Spectral Imaging ◽  
High Dynamic Range ◽  
High Dynamic

High-dynamic-range interferometric bragg-cell spectrum analyser

1986 ◽  
Vol 133 (1) ◽  
pp. 26
Author(s):  
J. Mellis ◽  
G.R. Adams ◽  
K.D. Ward
Keyword(s):  
Dynamic Range ◽  
High Dynamic Range ◽  
Spectrum Analyser ◽  
High Dynamic

High Dynamic Range Images and Tone Mapping Operator

2009 ◽  
Vol 35 (2) ◽  
pp. 113-122 ◽  
Author(s):  
Ke-Hu YANG ◽  
Jing JI ◽  
Jian-Jun GUO ◽  
Wen-Sheng YU
Keyword(s):  
Dynamic Range ◽  
High Dynamic Range ◽  
Tone Mapping ◽  
Range Images ◽  
High Dynamic
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