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A screenshot of a movie with a box around the center of interest overlayed.
[NetworkPoints -- Video A (2.4 MB)]
[NetworkBoxes -- Video B (2.2 MB)]
[SundayPoints -- Video C (1.4 MB)]
[SundayBoxes -- Video D (1.4 MB)]

Where people look when watching movies

Magnification around the most important point of a movie scene (center of interest - COI) might aid people with visual impairments that cause resolution loss. This will be effective only if most people look at the same place when watching a movie. We recorded the eye movements of 20 normally-sighted subjects as each watched 6 movie clips. Here are excerpts from clips illustrating different levels of movement and the varied responses.

More information - for more information about the scanpath work and the sample movies, click here.

Image Enhancement

An example of image enhancement using the DigiVision device. Original unenhanced image on the left, enhanced image on the right.
[Video Simulations (Small 539 KB)]
[Video Simulations (Large 3.0 MB)]

Image Enhancement

Example of Television Image Enhancement performed by the DigiVision RazorVision device implementing the Adaptive Enhancement algorithm (Peli and Peli, 1984). The left side of the split screen is the original image, the enhanced image is presented on the right.
Note: MPEG compression degrades the quality of both images, especially for the smaller file size.

MPEG Image Enhancement - for demonstrations of our MPEG enhancement, click here.

[More Information]
Central Field Loss
 A simulation of how a person with central field loss (due to AMD) would see another person
[Video Simulations]

Central Field Loss (CFL)
, the loss of central vision, is usually caused by Macular Degeneration. CFL patients can have difficulties with reading, face recognition, driving, and mobility.

This simulation was taken from the video "Hope In Sight", which we developed using software provided by Wilson S. Geisler, Ph.D. of the University of Texas, Austin and was produced by the New England Research Institutes, Watertown, MA. In 2003, "Hope In Sight" won a Telly Award.

Geisler WS, Perry JS. Real-time simulation of arbitrary visual fields. [PDF 860 KB]


Aschematic illustration of how a person with left hemianopia might see an airport terminal scene with the peripheral prisms
[Video Simulations]

videos created by Alex K. Nugent

Homonymous hemianopia
, the loss of vision in about half the visual field (i.e. on one side and in both eyes), can occur due to stroke, head injury, or surgery to remove tumors. Hemianopic visual field loss causes a range of problems, the most common being mobility and navigation. Patients with hemianopia frequently... [More Information]


Tunnel Vision

A schematic illustration of how a person with tunnel vision might see the airport terminal scene with the Trifield prism spectacles (on the right) and without (on the left)
[Video Simulations]

videos created by Alex K. Nugent

Peripheral visual field loss
(tunnel vision) is a severe constriction of the visual field leaving only the central 5-10 deg. of the field functional. This condition may occur in diseases such as Retinitis Pigmentosa or... [More Information]


Augmented Vision
what someone looking through the Augmented vision head mounted display might see
[Video Simulations]

videos created by Fernando Vargas-Martin, PhD
and Jack Nye
Electronic aids for the visually impaired using head mounted display devices were proposed by many and a few attempts at implementation have even made it to the market. Existing products provided... [More Information]

Stereo Vision
See the two eyes view used in the study shown superimposed on the same screen. This is the view without the special LCD shutters used to separate the images.
[Video Simulations]

videos created by Reed Hedges
This project aims to solve the problem of the decoupling of the convergence and accommodation in general stereo systems. Unlike the previous solution to the decoupling... [More Information]
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