System and method for passive three-dimensional data acquisition
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United States of America Patent
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app pub date -
Apr 16, 2002
filing date -
Mar 1, 2002
priority date (Note) -
Abandoned
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Abstract
A method and system of passively acquiring three-dimensional data concerning an object relies on comparison of changes in dimensions of the background object relative to changes in dimensions of a foreground pattern or patterns as the effective optical path length between the foreground patterns and a corresponding receiver or receivers is varied, and/or on comparison of changes in positions of the background object relative to the grid as the position of the grid in a direction perpendicular to the direction of the background object is varied.
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