Dr. Saeed R. Bagheri Profile

Dr. Saeed R. Bagheri

Senior Research Staff Member at Philips Research North America

SPIE Involvement:

Author | Instructor

Proceedings Article | 15 May 2012 Paper

3D resolution in computationally reconstructed integral photography

Zahra Kavehvash, Khashayar Mehrany, Saeed Bagheri, Genaro Saavedra, Hector Navarro, Manuel Martinez-Corral

Proceedings Volume 8384, 838417 (2012) https://doi.org/10.1117/12.920977

KEYWORDS: 3D image processing, Image resolution, Integral imaging, Imaging systems, Microlens array, Spatial resolution, Photography, Microlens, Computational imaging, Sensors

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Proceedings Article | 20 May 2011 Paper

Field of view extension using frequency division multiple access technique: numerical analysis

Zahra Kavehvash, Khashayar Mehrany, Saeed Bagheri

Proceedings Volume 8043, 80430F (2011) https://doi.org/10.1117/12.886569

KEYWORDS: Image resolution, 3D image processing, Integral imaging, Frequency division multiplexing, Quantization, 3D displays, Numerical analysis, Imaging systems, 3D image reconstruction, Spatial frequencies

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Proceedings Article | 5 April 2011 Paper

Design specific joint optimization of masks and sources on a very large scale

K. Lai, M. Gabrani, D. Demaris, N. Casati, A. Torres, S. Sarkar, P. Strenski, S. Bagheri, D. Scarpazza, A. Rosenbluth, D. Melville, A. Wächter, J. Lee, V. Austel, M. Szeto-Millstone, K. Tian, F. Barahona, T. Inoue, M. Sakamoto

Proceedings Volume 7973, 797308 (2011) https://doi.org/10.1117/12.879787

KEYWORDS: Source mask optimization, Photomasks, Lithography, Standards development, Algorithm development, Resolution enhancement technologies, Diffraction, Visualization, Photovoltaics

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Proceedings Article | 5 May 2010 Paper

Extension of depth of field using amplitude modulation of the pupil function for bio-imaging

Zahra Kavehvash, Saeed Bagheri, Khashayar Mehrany, Bahram Javidi, Emilio Sanchez, Manuel Martinez-Corral

Proceedings Volume 7690, 76900O (2010) https://doi.org/10.1117/12.850552

KEYWORDS: Spatial frequencies, Image filtering, Principal component analysis, Modulation transfer functions, Amplitude modulation, Imaging systems, Signal to noise ratio, Phase modulation, 3D image processing, Modulation

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Proceedings Article | 16 March 2010 Paper

Demonstrating the benefits of source-mask optimization and enabling technologies through experiment and simulations

David Melville, Alan Rosenbluth, Kehan Tian, Kafai Lai, Saeed Bagheri, Jaione Tirapu-Azpiroz, Jason Meiring, Scott Halle, Greg McIntyre, Tom Faure, Daniel Corliss, Azalia Krasnoperova, Lei Zhuang, Phil Strenski, Andreas Waechter, Laszlo Ladanyi, Francisco Barahona, Daniele Scarpazza, Jon Lee, Tadanobu Inoue, Masaharu Sakamoto, Hidemasa Muta, Alfred Wagner, Geoffrey Burr, Young Kim, Emily Gallagher, Mike Hibbs, Alexander Tritchkov, Yuri Granik, Moutaz Fakhry, Kostas Adam, Gabriel Berger, Michael Lam, Aasutosh Dave, Nick Cobb

Proceedings Volume 7640, 764006 (2010) https://doi.org/10.1117/12.846716

KEYWORDS: Source mask optimization, Photomasks, Metals, Lithography, Optical proximity correction, Line edge roughness, Resolution enhancement technologies, Diffractive optical elements, Semiconducting wafers, Scanning electron microscopy

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Proceedings Article | 7 May 2009 Paper

Extension of the depth of field in integral imaging: an overview

Saeed Bagheri, Bahram Javidi

Proceedings Volume 7329, 732906 (2009) https://doi.org/10.1117/12.817896

KEYWORDS: Modulation transfer functions, Signal to noise ratio, Imaging systems, Integral imaging, Spatial frequencies, 3D image processing, Phase modulation, Amplitude modulation, Roads, Point spread functions

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Proceedings Article | 16 March 2009 Paper

Intensive optimization of masks and sources for 22nm lithography

Alan Rosenbluth, David Melville, Kehan Tian, Saeed Bagheri, Jaione Tirapu-Azpiroz, Kafai Lai, Andreas Waechter, Tadanobu Inoue, Laszlo Ladanyi, Francisco Barahona, Katya Scheinberg, Masaharu Sakamoto, Hidemasa Muta, Emily Gallagher, Tom Faure, Michael Hibbs, Alexander Tritchkov, Yuri Granik

Proceedings Volume 7274, 727409 (2009) https://doi.org/10.1117/12.814844

KEYWORDS: Photomasks, Source mask optimization, Lithography, Optimization (mathematics), Wavefronts, Manufacturing, Chemical elements, Fiber optic illuminators, Image processing, Optics manufacturing

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Proceedings Article | 16 March 2009 Paper

Benefits and trade-offs of global source optimization in optical lithography

Kehan Tian, Azalia Krasnoperova, David Melville, Alan Rosenbluth, Dario Gil, Jaione Tirapu-Azpiroz, Kafai Lai, Saeed Bagheri, Chia-chen Chen, Bradley Morgenfeld

Proceedings Volume 7274, 72740C (2009) https://doi.org/10.1117/12.814305

KEYWORDS: Diffraction, Printing, Source mask optimization, Optical lithography, Resolution enhancement technologies, Photomasks, Semiconducting wafers, Lithographic illumination, Lithography, Manufacturing

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Proceedings Article | 16 March 2009 Paper

Experimental result and simulation analysis for the use of pixelated illumination from source mask optimization for 22nm logic lithography process

Kafai Lai, Alan Rosenbluth, Saeed Bagheri, John Hoffnagle, Kehan Tian, David Melville, Jaione Tirapu-Azpiroz, Moutaz Fakhry, Young Kim, Scott Halle, Greg McIntyre, Alfred Wagner, Geoffrey Burr, Martin Burkhardt, Daniel Corliss, Emily Gallagher, Tom Faure, Michael Hibbs, Donis Flagello, Joerg Zimmermann, Bernhard Kneer, Frank Rohmund, Frank Hartung, Christoph Hennerkes, Manfred Maul, Robert Kazinczi, Andre Engelen, Rene Carpaij, Remco Groenendijk, Joost Hageman, Carsten Russ

Proceedings Volume 7274, 72740A (2009) https://doi.org/10.1117/12.814680

KEYWORDS: Photomasks, Source mask optimization, Diffractive optical elements, Manufacturing, Lithographic illumination, Lithography, Semiconducting wafers, Photovoltaics, Polarization, Printing

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Proceedings Article | 15 April 2008 Paper

Extension of depth of field in integral imaging using amplitude and phase modulation of the pupil function

Saeed Bagheri, Bahram Javidi

Proceedings Volume 6983, 69830L (2008) https://doi.org/10.1117/12.786887

KEYWORDS: Modulation transfer functions, Phase modulation, Signal to noise ratio, Imaging systems, Spatial frequencies, Amplitude modulation, Integral imaging, Modulation, Phase shift keying, 3D image processing

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Proceedings Article | 30 August 2006 Paper

On the computation of the coherent point-spread function using a low-complexity representation

Saeed Bagheri, Daniela Pucci de Farias, George Barbastathis, Mark Neifeld

Proceedings Volume 6311, 631108 (2006) https://doi.org/10.1117/12.680632

KEYWORDS: Point spread functions, Diffraction, Wavefronts, Imaging systems, Monochromatic aberrations, Algorithm development, Fourier transforms, Optical spheres, Distortion, Numerical simulations

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Proceedings Article | 30 August 2006 Paper

Design and optimization of the cubic-phase pupil for the extension of the depth of field of task-based imaging systems

Saeed Bagheri, Paulo Silveira, Ramkumar Narayanswamy, Daniela Pucci de Farias

Proceedings Volume 6311, 63110R (2006) https://doi.org/10.1117/12.681284

KEYWORDS: Imaging systems, Modulation transfer functions, Spatial frequencies, Signal to noise ratio, Image quality, Wavefronts, Iris recognition, Modulation, Visualization, Image resolution

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Proceedings Article | 16 August 2004 Paper

Mathematical modeling and design of a novel 2-DOF micro attraction actuator for a micro optical switch

Daiki Kamiya, Saeed Bagheri, Mikio Horie

Proceedings Volume 5455, (2004) https://doi.org/10.1117/12.545993

KEYWORDS: Mirrors, Mathematical modeling, Optical switching, Electrodes, Switches, Neodymium, Actuators, Switching, Microactuators, Capacitors

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Showing 5 of 13 publications

Conference Committee Involvement (4)

Three-Dimensional Imaging, Visualization, and Display 2012

24 April 2012 | Baltimore, Maryland, United States

Three-Dimensional Imaging, Visualization, and Display 2011

27 April 2011 | Orlando, Florida, United States

Three-Dimensional Imaging, Visualization, and Display 2010

7 April 2010 | Orlando, Florida, United States

Three-Dimensional Imaging, Visualization, and Display 2009

15 April 2009 | Orlando, Florida, United States

Course Instructor

SC946: Super Resolution in Imaging Systems

This course provides an introduction to the signal processing methods used to increase image resolution. Specifically, it provides attendees with the practical knowledge to estimate the benefits of using super resolution in an imaging system as well as the guidance to select the right super resolution method for a given application. The course is divided into three parts. In the first part, we describe the fundamental limits to resolution in an imaging system and establish the necessity of using signal processing as a mean to achieve super resolution. In the second part we focus on different super resolution techniques. Specifically, we cover defocus based techniques, zoom based techniques, photometry based techniques and edge enhancement based techniques. In the third part of the course we provide some real life examples from various imaging fields to establish how the super resolution techniques work. The attendee will therefore benefit from a concise and realistic overview of current signal processing methods for super resolution, and thus be able to make the right decision when it comes to accessing the potential use of super resolution for a specific product development.

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