Method and system for identifying an object in an...

Details Method and system for identifying an object in an... Method and system for identifying an object in an...

2006-12-12

2010-06-08

Lu, Tom Y (Department: 2624)

Image analysis

Image enhancement or restoration

Edge or contour enhancement

C382S199000

Reexamination Certificate

active

07734112

ABSTRACT:
A system and method for identifying an object in an electronically acquired image that includes at least one two-dimensional array of pixels. A plurality of one-dimensional gradient runs oriented along a common direction in the two-dimensional array of pixels is identified. A second-order set of gradient runs is formed by selecting a group of previously identified one-dimensional gradient runs. Each of the one-dimensional gradient runs in the group has a pixel that is offset along an axis perpendicular to the common direction from a pixel in a neighboring one-dimensional gradient run in the group. The object is identified in the array using the second-order set of gradient runs.

REFERENCES:
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patent: 6775031 (2004-08-01), Fujiwara
patent: 7133559 (2006-11-01), Yamazaki
patent: 7149354 (2006-12-01), Bovyrin
patent: 7292256 (2007-11-01), Lawther et al.
patent: 7425955 (2008-09-01), Long et al.

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