Circuit and method for contour enhancement

Television – Camera – system and detail – Combined image signal generator and general image signal...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C348S241000, C348S222100, C348S625000, C382S266000, C358S003270

Reexamination Certificate

active

07352397

ABSTRACT:
A semiconductor integrated circuit includes a differential calculating unit which obtains a differential between a value of a pixel of interest and values of surrounding pixels contained in an image signal supplied from an image sensor, a dead-zone generating unit which defines a predetermined range of pixel values, and a comparison unit which checks whether the differential falls outside the predetermined range, wherein contour enhancement is applied to the pixel of interest in response to a determination by the comparison unit that the differential falls outside the predetermined range.

REFERENCES:
patent: 4817174 (1989-03-01), Nakatani
patent: 5331411 (1994-07-01), Kawakami et al.
patent: 6677994 (2004-01-01), Kobayashi
patent: 6909813 (2005-06-01), Amano et al.
patent: 6915023 (2005-07-01), Hamada et al.
patent: 05022601 (1993-01-01), None
patent: 10-240929 (1998-09-01), None
patent: 10-257352 (1998-09-01), None
patent: 11-017954 (1999-01-01), None
patent: 2000-350055 (2000-12-01), None
patent: 2001-157085 (2001-06-01), None
patent: 2001-292325 (2001-10-01), None
patent: 2002-112108 (2002-04-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Circuit and method for contour enhancement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit and method for contour enhancement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method for contour enhancement will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2793222

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.