Method for enhancing performance in a system utilizing an array of sensors that sense at least two-dimensions
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United States of America Patent
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Feb 10, 2004
Grant Date -
May 23, 2002
app pub date -
Nov 19, 2001
filing date -
Nov 19, 2000
priority date (Note) -
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Abstract
In a three-dimensional data acquisition system, coordinate transformation and geometric error correction are avoided by representing data in a sensor array coordinate system (i,j,k) rather than a conventional (x,y,z) coordinate system. A preferably point-sized sub-region is defined for each potential region of interest for a virtual input device subject to interaction with a user-controlled object. The (i,j,k) coordinate system used relates to raw data, and correction for several types of geometric error and optical lens error are avoided by determining interaction with such raw coordinate data. As a result, substantial processing overhead may be avoided.
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