Prof. Albert Skip Rizzo Profile

Prof. Albert Skip Rizzo

SPIE Involvement:

Author

Proceedings Article | 13 May 2019 Paper

Clinical virtual reality in mental health and rehabilitation: A brief review of the future!

Albert Skip Rizzo

Proceedings Volume 11002, 110020Q (2019) https://doi.org/10.1117/12.2524302

KEYWORDS: Virtual reality, Clinical research, Computing systems, Medicine, Psychology, Sensors, Analytical research, Prototyping, Environmental sensing, Human-machine interfaces

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Proceedings Article | 15 February 2008 Paper

Effects of stereoscopic displays and interaction devices on human motor behavior

Shih-Ching Yeh, Belinda Lange, C. Chang, Chiao Wang, Alexander Sawchuk, Albert Rizzo

Proceedings Volume 6804, 680405 (2008) https://doi.org/10.1117/12.767859

KEYWORDS: Optical tracking, Glasses, Camera shutters, Magnetic tracking, Autostereoscopic displays, Magnetism, Stereoscopic displays, Virtual reality, Phase measurement, Video

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Proceedings Article | 5 March 2007 Paper

A virtual reality oriented clinical experiment on post-stroke rehabilitation: performance and preference comparison among different stereoscopic displays

Shih-Ching Yeh, Albert Rizzo, Alexander Sawchuk

Proceedings Volume 6490, 64900A (2007) https://doi.org/10.1117/12.703739

KEYWORDS: Head-mounted displays, Seaborgium, Virtual reality, 3D displays, Stereoscopic displays, Eye, Head, Cameras, Camera shutters, Glasses

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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.

Conference Committee Involvement (5)

Advances in Global Health through Sensing Technologies 2015

20 April 2015 | Baltimore, MD, United States

Sensing Technologies for Global Health, Military Medicine, and Environmental Monitoring IV

5 May 2014 | Baltimore, MD, United States

Sensing Technologies for Global Health, Military Medicine, and Environmental Monitoring III

29 April 2013 | Baltimore, Maryland, United States

Sensing Technologies for Global Health, Military Medicine, Disaster Response, and Environmental Monitoring II

23 April 2012 | Baltimore, Maryland, United States

Sensing Technologies for Global Health, Military Medicine, Disaster Response, and Environmental Monitoring

25 April 2011 | Orlando, Florida, United States

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