Prof. Roummel F. Marcia Profile

Prof. Roummel F. Marcia

Professor at Univ. of California Merced

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 3 October 2022 Presentation + Paper

Synthetic aperture radar inverse scattering reconstruction using convolutional neural networks

Jacqueline Alvarez, Arnold Kim, Roummel Marcia, Chrysoula Tsogka

Proceedings Volume 12227, 1222703 (2022) https://doi.org/10.1117/12.2633577

KEYWORDS: Synthetic aperture radar, Signal to noise ratio, Reflectivity, Image restoration, Convolutional neural networks, Machine learning, Inverse scattering, Neural networks, Convolution

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Proceedings Article | 3 October 2022 Poster + Paper

Image classification and training with severe data loss

Dillon Marquard, Kyle Wright, Roummel Marcia

Proceedings Volume 12227, 122270T (2022) https://doi.org/10.1117/12.2633172

KEYWORDS: Data modeling, Image classification, Performance modeling, Machine learning, Neural networks, Image filtering, Convolutional neural networks

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Proceedings Article | 19 August 2020 Presentation + Paper

Machine learning for forward and inverse scattering in synthetic aperture radar

Omar DeGuchy, Jacqueline Alvarez, Arnold Kim, Roummel Marcia, Chrysoula Tsogka

Proceedings Volume 11511, 115110S (2020) https://doi.org/10.1117/12.2568302

KEYWORDS: Synthetic aperture radar, Signal to noise ratio, Reflectivity, Machine learning, Image resolution, Imaging systems, Inverse scattering problem, Image restoration, Matrices

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Proceedings Article | 9 September 2019 Paper

Parameter tuning using asynchronous parallel pattern search in sparse signal reconstruction

Omar DeGuchy, Roummel Marcia

Proceedings Volume 11138, 111381I (2019) https://doi.org/10.1117/12.2530229

KEYWORDS: Data modeling, Reconstruction algorithms, Sensors, Signal detection, Compressed sensing, Optimization (mathematics), Machine learning, Photons, Algorithm development

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Proceedings Article | 6 September 2019 Paper

Image disambiguation with deep neural networks

Omar DeGuchy, Alex Ho, Roummel Marcia

Proceedings Volume 11139, 111390A (2019) https://doi.org/10.1117/12.2530230

KEYWORDS: Image restoration, Neural networks, Image processing, Multiplexing, Feature extraction, Denoising, Image quality

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Proceedings Article | 24 August 2017 Presentation + Paper

Limited-memory trust-region methods for sparse relaxation

Lasith Adhikari, Omar DeGuchy, Jennifer Erway, Shelby Lockhart, Roummel Marcia

Proceedings Volume 10394, 103940J (2017) https://doi.org/10.1117/12.2271369

KEYWORDS: Signal detection, Compressed sensing, Medical imaging, Tomography

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Proceedings Article | 24 August 2017 Presentation + Paper

Non-convex Shannon entropy for photon-limited imaging

Lasith Adhikari, Reheman Baikejiang, Omar DeGuchy, Roummel Marcia

Proceedings Volume 10394, 103940L (2017) https://doi.org/10.1117/12.2274466

KEYWORDS: Image information entropy, Signal detection, Astronomy, Compressed sensing, Nuclear medicine, Night vision, Photons, Cameras, Image sensors

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Proceedings Article | 8 September 2011 Paper

Motion-adaptive compressive coded apertures

Zachary Harmany, Albert Oh, Roummel Marcia, Rebecca Willett

Proceedings Volume 8165, 81651C (2011) https://doi.org/10.1117/12.892726

KEYWORDS: Motion models, Coded apertures, Video, Optical flow, Motion measurement, Fourier transforms, Video compression, Imaging systems, Simulation of CCA and DLA aggregates, Reconstruction algorithms

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SPIE Journal Paper | 1 July 2011 Open Access

Compressed sensing for practical optical imaging systems: a tutorial

Rebecca Willett, Roummel Marcia, Jonathan Nichols

OE, Vol. 50, Issue 07, 072601, (July 2011) https://doi.org/10.1117/12.10.1117/1.3596602

KEYWORDS: Imaging systems, Compressed sensing, Cameras, Image resolution, Staring arrays, Image compression, Optical imaging, Video, Infrared imaging, Image restoration

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Proceedings Article | 4 May 2010 Paper

Compressive coded apertures for high-resolution imaging

Roummel Marcia, Zachary Harmany, Rebecca Willett

Proceedings Volume 7723, 772304 (2010) https://doi.org/10.1117/12.849487

KEYWORDS: Coded apertures, Reconstruction algorithms, Coded aperture imaging, Matrices, Compressed sensing, Image resolution, Wavelets, Staring arrays, Image compression, Fourier transforms

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Proceedings Article | 27 January 2010 Paper

SPIRAL out of convexity: sparsity-regularized algorithms for photon-limited imaging

Zachary Harmany, Roummel Marcia, Rebecca Willett

Proceedings Volume 7533, 75330R (2010) https://doi.org/10.1117/12.850771

KEYWORDS: Reconstruction algorithms, Tomography, Expectation maximization algorithms, Photons, Inverse problems, Wavelets, Atrial fibrillation, Sensors, Compressed sensing, Image restoration

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Proceedings Article | 3 February 2009 Paper

Compressive coded aperture imaging

Roummel Marcia, Zachary Harmany, Rebecca Willett

Proceedings Volume 7246, 72460G (2009) https://doi.org/10.1117/12.803795

KEYWORDS: Coded apertures, Video, Simulation of CCA and DLA aggregates, Cameras, Fourier transforms, Staring arrays, Compressed sensing, Distributed interactive simulations, Imaging systems, Video compression

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Showing 5 of 12 publications

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