Scaling of raster images without blurring of edges

Details Scaling of raster images without blurring of edges Scaling of raster images without blurring of edges

2004-08-18

2010-10-19

Bali, Vikkram (Department: 2624)

Image analysis

Image enhancement or restoration

Edge or contour enhancement

C382S256000, C382S298000, C382S264000, C382S263000, C382S300000

Reexamination Certificate

active

07817871

ABSTRACT:
Edges are detected in a raster image and generate parametric curves from the detected edges. The parametric curves are used to render a scaled version of the raster image. Some embodiments may allow edge locations within a raster image to retain a satisfactory level of sharpness when the raster image is scaled to a larger size.

REFERENCES:
patent: 4958272 (1990-09-01), Wake
patent: 5054100 (1991-10-01), Tai
patent: 5613048 (1997-03-01), Chen et al.
patent: 5818971 (1998-10-01), Moolenaar et al.
patent: 6271861 (2001-08-01), Sargent et al.
patent: 6313840 (2001-11-01), Bilodeau et al.
patent: 6714688 (2004-03-01), Gallagher et al.
patent: 6717697 (2004-04-01), Oosawa
patent: 6721453 (2004-04-01), Benson et al.
patent: 6766068 (2004-07-01), Aoyama et al.
patent: 6917721 (2005-07-01), Elad et al.
patent: 7016539 (2006-03-01), Silver et al.
patent: 7054507 (2006-05-01), Bradley et al.
patent: 7324669 (2008-01-01), Nakanishi et al.
patent: 7426312 (2008-09-01), Dance et al.
patent: 7437018 (2008-10-01), Amirghodsi
patent: 7558417 (2009-07-01), Knoplioch et al.
patent: 7697742 (2010-04-01), Dehmeshki
patent: 7702179 (2010-04-01), Ting
patent: 2003/0020710 (2003-01-01), Biermann et al.
Sarvajit S. Sinha et al., “A Two-Stage Algorithm for Discontinuity-Preserving Surface Reconstruction,” pp. 36-55, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 14, No. 1, Jan. 1992.
Salisbury, et al., “Scale-Dependent Reproduction of Pen-and-Ink Illustrations,” pp. 461-468, International Conference on Computer Graphics and Interactive Techniques, ACM Press, 1996.
Unser, Michael, “Splines: A Perfect Fit for Signal/Image Processing,” pp. 22-38, IEEE Signal Processing Magazine, Nov. 1999.

Affiliated with

Also associated with

Rating

Scaling of raster images without blurring of edges does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scaling of raster images without blurring of edges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling of raster images without blurring of edges will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4194609