Optical flow sensor

Details Optical flow sensor Optical flow sensor

2007-10-04

2011-12-13

Bhatnagar, Anand (Department: 2624)

Image analysis

Applications

Motion or velocity measuring

Reexamination Certificate

active

08077922

ABSTRACT:
An optical flow sensor for generating optical flow measurements based on a visual field is provided. The optical flow sensor comprises a binarized signal generator capable of generating binarized feature signals based on the visual field, a metafeature signal generator capable of generating metafeature signals based on the binarized feature signals, an apparatus for generating velocity reports based on the metafeature signals, and an apparatus for generating an optical flow measurement based on the velocity reports.

REFERENCES:
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patent: 5828444 (1998-10-01), Nomura
patent: 5998780 (1999-12-01), Kramer
patent: 6020953 (2000-02-01), Barrows
patent: 6194695 (2001-02-01), Barrows
patent: 6384905 (2002-05-01), Barrows
Barrows, G., et al., “Mixed-Mode VLSI Optic Flow Sensors for In-flight Control of Micro Air Vehicle”, SPIE Critical Technologies for the Future of Computing, Jul. 31-Aug. 4, 2000, vol. 4109.

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