Dr. Zahir Y. Alpaslan Profile

Dr. Zahir Y. Alpaslan

at GlobalFoundries

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Author

Publications (12)

Proceedings Article | 17 September 2018 Presentation + Paper

JPEG Pleno: a standard framework for representing and signaling plenoptic modalities

Peter Schelkens, Zahir Alpaslan, Touradj Ebrahimi, Kwan-Jung Oh, Fernando Pereira, Antonio M. Pinheiro, Ioan Tabus, Zhibo Chen

Proceedings Volume 10752, 107521P (2018) https://doi.org/10.1117/12.2323404

KEYWORDS: Holography, Clouds, Image compression, Standards development, Image processing, Visualization, Image quality standards, Databases, Computer programming, Holograms

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Proceedings Article | 24 May 2018 Paper

Information processing challenges of full parallax light field displays

Zahir Alpaslan, Hussein El-Ghoroury, Peter Schelkens

Proceedings Volume 10679, 106790J (2018) https://doi.org/10.1117/12.2316659

KEYWORDS: Image compression, Interfaces, Data storage, Imaging systems, Data conversion, Image processing, Data processing, Eye, Clouds, Cameras

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Proceedings Article | 27 September 2016 Paper

Development and deployment of a tiled full parallax light field display system

Zahir Alpaslan, Rie Matsubara, Hussein El-Ghoroury

Proceedings Volume 9971, 99710J (2016) https://doi.org/10.1117/12.2235826

KEYWORDS: Displays, 3D displays, Imaging systems, Image compression, Data storage, 3D image processing, Modulation, LCDs, Cameras, Data conversion

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Proceedings Article | 17 March 2015 Paper

Depth assisted compression of full parallax light fields

Danillo Graziosi, Zahir Alpaslan, Hussein El-Ghoroury

Proceedings Volume 9391, 93910Y (2015) https://doi.org/10.1117/12.2083439

KEYWORDS: Cameras, Image compression, Computer programming, Visibility, 3D displays, Video coding, Reconstruction algorithms, Video compression, 3D acquisition, 3D imaging standards

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Proceedings Article | 17 March 2015 Paper

Light field display simulation for light field quality assessment

Rie Matsubara, Zahir Alpaslan, Hussein El-Ghoroury

Proceedings Volume 9391, 93910G (2015) https://doi.org/10.1117/12.2083438

KEYWORDS: Computer simulations, Eye, Image compression, Point spread functions, Optical simulations, Photography, Cameras, RGB color model, Image quality, Image processing

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Proceedings Article | 17 March 2015 Paper

Small form factor full parallax tiled light field display

Zahir Alpaslan, Hussein El-Ghoroury

Proceedings Volume 9391, 93910E (2015) https://doi.org/10.1117/12.2083436

KEYWORDS: Calibration, 3D volumetric displays, Cameras, Display technology, Lens design, 3D image processing, Optical alignment, Image processing, 3D displays, Displays

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Proceedings Article | 6 March 2014 Paper

Compression for full-parallax light field displays

Danillo Graziosi, Zahir Alpaslan, Hussein El-Ghoroury

Proceedings Volume 9011, 90111A (2014) https://doi.org/10.1117/12.2040846

KEYWORDS: Image compression, Image quality, Image resolution, Spatial resolution, Lenses, Image processing, Visibility, 3D image processing, Image transmission, Computer simulations

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Proceedings Article | 27 January 2006 Paper

Effects of gender, application, experience, and constraints on interaction performance using autostereoscopic displays

Z. Alpaslan, A. Sawchuk, A. Rizzo, S. Yeh

Proceedings Volume 6055, 60550D (2006) https://doi.org/10.1117/12.643125

KEYWORDS: Glasses, Autostereoscopic displays, 3D displays, Seaborgium, Camera shutters, CRTs, Virtual reality, Motion measurement, 3D imaging standards, Eye

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Proceedings Article | 22 March 2005 Paper

Quantitative comparison of interaction with shutter glasses and autostereoscopic displays

Zahir Alpaslan, Shih-Ching Yeh, Albert Rizzo, Alexander Sawchuk

Proceedings Volume 5664, (2005) https://doi.org/10.1117/12.589291

KEYWORDS: Glasses, 3D displays, Camera shutters, Autostereoscopic displays, 3D image processing, Image quality, 3D metrology, Optical spheres, Head, Data processing

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In this paper we describe experimental measurements and comparison of human interaction with three different types of stereo computer displays. We compare traditional shutter glasses-based viewing with three-dimensional (3D) autostereoscopic viewing on displays such as the Sharp LL-151-3D display and StereoGraphics SG 202 display. The method of interaction is a sphere-shaped “cyberprop” containing an Ascension Flock-of-Birds tracker that allows a user to manipulate objects by imparting the motion of the sphere to the virtual object. The tracking data is processed with OpenGL to manipulate objects in virtual 3D space, from which we synthesize two or more images as seen by virtual cameras observing them. We concentrate on the quantitative measurement and analysis of human performance for interactive object selection and manipulation tasks using standardized and scalable configurations of 3D block objects. The experiments use a series of progressively more complex block configurations that are rendered in stereo on various 3D displays. In general, performing the tasks using shutter glasses required less time as compared to using the autostereoscopic displays. While both male and female subjects performed almost equally fast with shutter glasses, male subjects performed better with the LL-151-3D display, while female subjects performed better with the SG202 display. Interestingly, users generally had a slightly higher efficiency in completing a task set using the two autostereoscopic displays as compared to the shutter glasses, although the differences for all users among the displays was relatively small. There was a preference for shutter glasses compared to autostereoscopic displays in the ease of performing tasks, and glasses were slightly preferred for overall image quality and stereo image quality. However, there was little difference in display preference in physical comfort and overall preference. We present some possible explanations of these results and point out the importance of the autostereoscopic "sweet spot" in relation to the user's head and body position.

Proceedings Article | 21 May 2004 Paper

Three-dimensional interaction with autostereoscopic displays

Zahir Alpaslan, Alexander Sawchuk

Proceedings Volume 5291, (2004) https://doi.org/10.1117/12.524548

KEYWORDS: Cameras, Light sources, 3D displays, Autostereoscopic displays, 3D image processing, Video, Optical spheres, Imaging systems, Image resolution, LCDs

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Proceedings Article | 6 December 2001 Paper

Optical multi-token-ring networking using smart pixels with field programmable gate arrays (FPGAs)

Liping Zhang, Sunkwang Hong, Changki Min, Zahir Alpaslan, Alexander Sawchuk

Proceedings Volume 4470, (2001) https://doi.org/10.1117/12.449653

KEYWORDS: Clocks, Field programmable gate arrays, Vertical cavity surface emitting lasers, Optoelectronics, Signal detection, Photonic integrated circuits, Sensors, Signal processing, Receivers, Logic

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Proceedings Article | 24 May 2000 Paper

Parallel pipeline networking and signal processing with field-programmable gate arrays (FPGAs) and VCSEL-MSM smart pixels

C. Kuznia, Alexander Sawchuk, Liping Zhang, Bogdan Hoanca, Sunkwang Hong, Chris Min, Dhawat Pansatiankul, Zahir Alpaslan

Proceedings Volume 4089, (2000) https://doi.org/10.1117/12.386800

KEYWORDS: Field programmable gate arrays, Vertical cavity surface emitting lasers, Signal processing, Receivers, Signal detection, Interfaces, Logic, Image processing, Channel projecting optics, Sensors

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Showing 5 of 12 publications

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