Method and system for determining motion based on difference...

Details Method and system for determining motion based on difference... Method and system for determining motion based on difference...

2007-07-24

2007-07-24

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S557000, C250S221000

Reexamination Certificate

active

11014482

ABSTRACT:
An imager captures successive images of an object. One image is then subtracted from another image to generate difference images. Each difference image is then correlated with itself or with one of the images used to generate the difference image to determine the relative motion between the imager an the object.

REFERENCES:
patent: 5994710 (1999-11-01), Knee
International Search Report Appln. No. PCT/US05/39493 dated Nov. 22, 2006.

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