Method and apparatus for removal of bright or dark spots by the fusion of multiple images
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United States of America Patent
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Jul 11, 2000
Grant Date -
N/A
app pub date -
Jan 27, 1998
filing date -
Jan 27, 1998
priority date (Note) -
Expired
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Abstract
A reliable method and apparatus for illuminating and imaging eyes uses multiple light sources producing multiple images of a subject each created under illumination by different illuminators. A composite image of the subject is formed by selecting pixels based upon their gray scale values or using pyramid image processing. A composite image can be created which is free of bright spots commonly caused by reflection of illumination from eyeglasses that may be worn by a subject or for which is free of dark shadows or which is free of both bright spots and dark shadows.
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