Multi-dimensional pattern recognition by use of digital holography
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United States of America Patent
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May 23, 2006
Grant Date -
Dec 5, 2002
app pub date -
Mar 30, 2001
filing date -
Mar 30, 2001
priority date (Note) -
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Abstract
A method and system for performing three-dimensional pattern recognition by use of digital holography is disclosed. The complex amplitude distribution generated by an object is recorded by phase-shifting interferometry. The digital hologram contains information about the objects shape, location, and orientation. This information allows one to perform multi-dimensional pattern-recognition methods with a high degree of discrimination and to measure three-dimensional orientation changes.
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