Dr. Johann M. Veras Profile

Dr. Johann M. Veras

Sr Optical Engineer at Lockheed Martin Corp

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Publications (4)

SPIE Journal Paper | 17 June 2020

Nondestructive characterization of the axial refractive index of a nanolayered PMMA/SAN17 GRIN lens via Raman spectroscopy

Andrew Kirk, Johann Veras, Samantha Mensah, Michael Ponting, Clara Rivero-Baleine

OE, Vol. 59, Issue 11, 112603, (June 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.11.112603

KEYWORDS: GRIN lenses, Raman spectroscopy, Refractive index, Polymethylmethacrylate, Nondestructive evaluation, Polymers, Optics manufacturing, Gradient-index optics, Photorefractive polymers, Composites

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Proceedings Article | 14 May 2015 Paper

Computational imaging in a multiplexed imager with static multispectral encoding

Johann Veras, Robert Muise, Kevin Hines, Abhijit Mahalanobis, Mark Neifeld

Proceedings Volume 9484, 948407 (2015) https://doi.org/10.1117/12.2177062

KEYWORDS: Image resolution, Staring arrays, Imaging systems, Spatial light modulators, Signal to noise ratio, Multispectral imaging, Data modeling, Multiplexing, Compressed sensing, Computer programming

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Proceedings Article | 13 June 2014 Paper

Local imaging from global measurements applied to selective-spectral imaging

Johann Veras, Robert Muise, David Twede

Proceedings Volume 9088, 90881B (2014) https://doi.org/10.1117/12.2049314

KEYWORDS: Point spread functions, Staring arrays, Signal to noise ratio, Convolution, Image restoration, Reconstruction algorithms, Deconvolution, Computer programming, Cameras, Multiplexing

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Proceedings Article | 23 May 2014 Paper

Image estimation from projective measurements using low dimensional manifolds

Johann Veras, Robert Muise

Proceedings Volume 9109, 91090S (2014) https://doi.org/10.1117/12.2053290

KEYWORDS: Associative arrays, Image compression, Image analysis, Reconstruction algorithms, Error analysis, Image restoration, Algorithm development, Compressed sensing, Matrices, Statistical analysis

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