Speckle based sensor for three dimensional navigation

Details Speckle based sensor for three dimensional navigation Speckle based sensor for three dimensional navigation

2007-04-17

2007-04-17

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S221000, C356S614000

Reexamination Certificate

active

10632574

ABSTRACT:
Motion of a speckle pattern is employed to provide for navigation in three dimensions. Non-speckle optical navigation methods may also be used to provide for two dimensional surface navigation with speckle being used to provide for navigation in the third dimension.

REFERENCES:
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patent: 5907152 (1999-05-01), Dandliker et al.
patent: 6256016 (2001-07-01), Piot et al.
patent: 6730926 (2004-05-01), Boillot et al.
Schnell et al., “detection of Movement with Laser SPeckle Patterns: Statistical Propertires”, JOSA A, vol. 15, No. 1, 1998, pp. 207-216.

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