Dr. Nikos P. Pitsianis Profile

Dr. Nikos P. Pitsianis

Research Assistant Professor at Duke Univ

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 2 September 2009 Paper

Automated optimization of look-up table implementation for function evaluation on FPGAs

L. Deng, C. Chakrabarti, N. Pitsianis, X. Sun

Proceedings Volume 7444, 744413 (2009) https://doi.org/10.1117/12.834184

KEYWORDS: Error analysis, Field programmable gate arrays, Signal processing, Image processing, Data processing, Bessel functions, Computer engineering, 3D image processing, 3D modeling, Model-based design

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Proceedings Article | 2 September 2009 Paper

Fast computation of local correlation coefficients on graphics processing units

Georgios Papamakarios, Georgios Rizos, Nikos Pitsianis, Xiaobai Sun

Proceedings Volume 7444, 744412 (2009) https://doi.org/10.1117/12.834180

KEYWORDS: Convolution, Fourier transforms, Direct methods, Graphics processing units, Computer programming, Algorithm development, Data processing, Image processing, Image segmentation, Image filtering

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Proceedings Article | 5 September 2008 Paper

Spatio-temporal sampling for video

Mohan Shankar, Nikos Pitsianis, David Brady

Proceedings Volume 7076, 707604 (2008) https://doi.org/10.1117/12.795753

KEYWORDS: Video, Cameras, Video surveillance, Reconstruction algorithms, Video compression, Image compression, Image resolution, Sensors, Video processing, Imaging systems

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Proceedings Article | 4 September 2008 Paper

Spectral image estimation for coded aperture snapshot spectral imagers

Ashwin Wagadarikar, Nikos Pitsianis, Xiaobai Sun, David Brady

Proceedings Volume 7076, 707602 (2008) https://doi.org/10.1117/12.795545

KEYWORDS: Sensors, Coded apertures, Image analysis, Calibration, Imaging systems, Data analysis, Image processing, Quantization, Modulation, Prisms

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Proceedings Article | 3 September 2008 Paper

Accelerating nonuniform fast Fourier transform via reduction in memory access latency

Nihshanka Debroy, Nikos Pitsianis, Xiaobai Sun

Proceedings Volume 7074, 707404 (2008) https://doi.org/10.1117/12.795208

KEYWORDS: Convolution, Fourier transforms, Image acquisition, Performance modeling, Signal processing, Magnetic resonance imaging, Microscopy, Magnetism, Image restoration, Detection and tracking algorithms

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Proceedings Article | 3 September 2008 Paper

Fast computation of local correlation coefficients

Xiaobai Sun, Nikos Pitsianis, Paolo Bientinesi

Proceedings Volume 7074, 707405 (2008) https://doi.org/10.1117/12.796332

KEYWORDS: Data processing, Fourier transforms, Image compression, Transform theory, Computer architecture, Surface plasmons, Motion estimation, Data storage, Image registration, Prototyping

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Proceedings Article | 3 September 2008 Paper

Solving non-negative linear inverse problems with the NeAREst method

Xiaobai Sun, Nikos Pitsianis

Proceedings Volume 7074, 707402 (2008) https://doi.org/10.1117/12.795479

KEYWORDS: Inverse problems, Image analysis, Chemical elements, Expectation maximization algorithms, Systems modeling, Multiscale representation, Statistical modeling, Information theory, Image filtering, Sun

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Proceedings Article | 18 May 2006 Paper

Compressive sampling strategies for integrated microspectrometers

David Brady, Michael Gehm, Nikos Pitsianis, Xiaobai Sun

Proceedings Volume 6232, 62320C (2006) https://doi.org/10.1117/12.666124

KEYWORDS: Compressed sensing, Spectroscopy, Sensors, Statistical modeling, Sensing systems, Spectrometers, Spectrometer engineering, Chemical elements, Systems modeling, Reconstruction algorithms

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Proceedings Article | 18 May 2006 Paper

Compressive imaging sensors

N. Pitsianis, D. Brady, A. Portnoy, X. Sun, T. Suleski, M. Fiddy, M. Feldman, R. TeKolste

Proceedings Volume 6232, 62320A (2006) https://doi.org/10.1117/12.666451

KEYWORDS: Image compression, Image resolution, Sensors, Imaging systems, Transform theory, Diffraction, Compressive imaging, Cameras, Photomasks, Compressed sensing

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Proceedings Article | 27 February 2006 Paper

Multimodal multiplex Raman spectroscopy optimized for in vivo chemometrics

S. McCain, M. Gehm, Y. Wang, N. Pitsianis, D. Brady

Proceedings Volume 6093, 60930P (2006) https://doi.org/10.1117/12.646755

KEYWORDS: Raman spectroscopy, Spectroscopy, Signal detection, Chemometrics, Luminescence, Bioalcohols, Raman scattering, Scattering, Molecules, Data modeling

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Proceedings Article | 2 February 2006 Paper

Thin digital imaging systems using focal plane coding

Andrew Portnoy, Nikos Pitsianis, David Brady, Junpeng Guo, Michael Fiddy, Michael Feldman, Robert Te Kolste

Proceedings Volume 6065, 60650F (2006) https://doi.org/10.1117/12.643203

KEYWORDS: Imaging systems, Sensors, Optical sensors, Photomasks, Cameras, Glasses, Image resolution, Image compression, Image sensors, Digital imaging

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Proceedings Article | 15 September 2005 Paper

Compressive optical MONTAGE photography

David Brady, Michael Feldman, Nikos Pitsianis, J.P. Guo, Andrew Portnoy, Michael Fiddy

Proceedings Volume 5907, 590708 (2005) https://doi.org/10.1117/12.613213

KEYWORDS: Imaging systems, Image compression, Photography, Image resolution, Charge-coupled devices, Imaging arrays, Staring arrays, Image fusion, Matrices, Visible radiation

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Proceedings Article | 1 September 2005 Paper

Multimodal, multiplex, Raman spectroscopy of alcohol in diffuse, fluorescent media

Scott McCain, Michael Gehm, Yanqia Wang, Nikos Pitsianis, Michael Sullivan, David Brady

Proceedings Volume 5864, 58640L (2005) https://doi.org/10.1117/12.632934

KEYWORDS: Raman spectroscopy, Charge-coupled devices, Tissue optics, Sensors, Spectroscopy, Bioalcohols, Semiconductor lasers, Photomasks, Raman scattering, CCD image sensors

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Proceedings Article | 25 May 2005 Paper

Sensor-layer image compression based on the quantized cosine transform

Nikos Pitsianis, David Brady, Xiaobai Sun

Proceedings Volume 5817, (2005) https://doi.org/10.1117/12.604921

KEYWORDS: Image compression, Sensors, Data storage, Data acquisition, Image processing, Image analysis, Quantization, Image sensors, Imaging systems, System integration

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Proceedings Article | 2 November 1999 Paper

High-performance FFT implementation on the BOPS ManArray parallel DSP

Nikos Pitsianis, Gerald Pechanek

Proceedings Volume 3807, (1999) https://doi.org/10.1117/12.367633

KEYWORDS: Digital signal processing, Signal processing, Data communications, Fourier transforms, Matrices, Parallel computing, Array processing, Image processing, Algorithm development, Telecommunications

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Proceedings Article | 2 October 1998 Paper

Performance modeling of adaptive-optics imaging systems using fast Hankel transforms

Victor Pauca, Brent Ellerbroek, Nikos Pitsianis, Robert Plemmons, Xiaobai Sun

Proceedings Volume 3461, (1998) https://doi.org/10.1117/12.325694

KEYWORDS: Transform theory, Adaptive optics, Atmospheric optics, Performance modeling, Matrices, Wavefronts, Imaging systems, Atmospheric sciences, Bessel functions, Space telescopes

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Proceedings Article | 2 October 1998 Paper

Jacobi-like method for a control algorithm in adaptive-optics imaging

Nikos Pitsianis, Brent Ellerbroek, Charles Van Loan, Robert Plemmons

Proceedings Volume 3461, (1998) https://doi.org/10.1117/12.325691

KEYWORDS: Matrices, Adaptive optics, Optimization (mathematics), Atmospheric turbulence, Silicon, Optical filters, Adaptive control, Digital filtering, Telescopes, Deformable mirrors

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Proceedings Article | 31 May 1994 Paper

Optimizing closed-loop adaptive optics performance using multiple control bandwidths

Brent Ellerbroek, Charles Van Loan, Nikos Pitsianis, Robert Plemmons

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176127

KEYWORDS: Control systems, Adaptive optics, Wavefronts, Sensors, Deformable mirrors, Actuators, Servomechanisms, Wavefront distortions, Adaptive control, Wavefront sensors

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Showing 5 of 18 publications

Conference Committee Involvement (1)

Advanced Signal Processing Algorithms, Architectures, and Implementations XIX

2 August 2009 | San Diego, California, United States

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