Content-adaptive filter technique

Image analysis – Image enhancement or restoration – Image filter

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C382S274000, C382S275000

Reexamination Certificate

active

08086062

ABSTRACT:
Selection of a filter for filtering an image to achieve fast noise reduction while retaining picture details and edge sharpness begins by first determining the detail throughout the image. Detection of the image edges then occurs. Using the image detail and edge information, the filter properties are selected, including the number of filter taps and the filter strength.

REFERENCES:
patent: 4058836 (1977-11-01), Drewery et al.
patent: 5343309 (1994-08-01), Roetling
patent: 7092482 (2006-08-01), Besson
patent: 7277206 (2007-10-01), Trifonov et al.
patent: 7308139 (2007-12-01), Wentland et al.
patent: 7363180 (2008-04-01), Swaringen et al.
patent: 7515763 (2009-04-01), Zhong
patent: 2002/0122602 (2002-09-01), Rouvellou
patent: 2005/0100235 (2005-05-01), Kong et al.
patent: 1351508 (2003-10-01), None
patent: 2309095 (1976-12-01), None
patent: 2322252 (1998-08-01), None
Turaga et al.: “Content-Adaptive Filtering in the UMCTF Framework”, Proceedings 2003 International Conference on Multimedia and Expo, Pt. vol. 1, pp. I-821-I-84, IEEE, Piscataway, NJ, USA.
Chan et al.:“A Novel Content-Adaptive Video Denoising Filter”, 2005 IEEE International Conference on Acoustics, Speech, and Signal Processing, Pt. vol. 2, p. ii/649-ii/652, Piscataway, NJ, USA.
Park et al.:“Spatially Adaptive Denoising Based on Nonstationary Correlation Assumption”, Optical Engineering, vol. 43, No. 3, pp. 628-638, Mar. 2004, SPIE, USA.
Rangayyan et al.:“Adaptive-Neighborhood Filtering of Images Corrupted by Signal-Dependent Noise”, Applied Optics, vol. 37, No. 20, pp. 4477-4487, Jul. 10, 1998, Opt. Soc. America, USA.
International Search Report, dated Nov. 7, 2006.

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

Content-adaptive filter technique does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Content-adaptive filter technique, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Content-adaptive filter technique will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4304694

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