System and method for performing an optical tracking...

Details System and method for performing an optical tracking... System and method for performing an optical tracking...

2008-04-15

2010-02-02

Lee, John R (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S222100, C345S167000

Reexamination Certificate

active

07655897

ABSTRACT:
A system and method for performing an optical tracking operation computes a translated movement value of a displacement values using a relationship between a reference displacement value derived using a reference surface and a corresponding displacement value using a target surface. The displacement value is produced using image correlation by optically sensing the target surface. The translated movement value is used for the optical tracking operation.

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patent: 2007/0291272 (2007-12-01), Itagaki
patent: 2008/0204761 (2008-08-01), Itagaki
patent: 2008/0260262 (2008-10-01), Lim et al.

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