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Design of a reading test for low vision image warpingNASA and the University of Houston College of Optometry are examining the efficacy of image warping as a possible prosthesis for at least two forms of low vision - maculopathy and retinitis pigmentosa. Before incurring the expense of reducing the concept to practice, one would wish to have confidence that a worthwhile improvement in visual function would result. NASA's Programmable Remapper (PR) can warp an input image onto arbitrary geometric coordinate systems at full video rate, and it has recently been upgraded to accept computer-generated video text. We have integrated the Remapper with an SRI eye tracker to simulate visual malfunction in normal observers. A reading performance test has been developed to determine if the proposed warpings yield an increase in visual function; i.e., reading speed. We will describe the preliminary experimental results of this reading test with a simulated central field defect with and without remapped images.
Document ID
19930069028
Document Type
Conference Paper
Authors
Loshin, David S. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Wensveen, Janice (Houston Univ. TX, United States)
Juday, Richard D. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Barton, R. S. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: In: Visual information processing II; Proceedings of the Meeting, Orlando, FL, Apr. 14-16, 1993 (A93-53022 23-63)
Subject Category
AEROSPACE MEDICINE
Distribution Limits
Public
Copyright
Other

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IDRelationTitle19930069025Analytic PrimaryVisual information processing II; Proceedings of the Meeting, Orlando, FL, Apr. 14-16, 1993