Image distortion correction apparatus, distortion correction...

Details Image distortion correction apparatus, distortion correction... Image distortion correction apparatus, distortion correction...

2006-03-21

2006-03-21

Williams, Kimberly (Department: 2626)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S488000, C358S504000, C358S516000, C382S275000, C382S286000, C382S293000

Reexamination Certificate

active

07016081

ABSTRACT:
The present invention provide an image distortion correction apparatus comprising a circumscribed rectangle extraction unit which extracts a circumscribed rectangle for each character in a distorted image scanned by an image reading unit to read an original placed on a reference plane, a character string extraction unit which extracts character strings using said circumscribed rectangles extracted by said circumscribed rectangle extraction unit, a distance estimation unit which estimates a distance between said reference plane and said original using said character strings and an image distortion correction unit which corrects said distorted image based on said distance between said reference plane and said original estimated by said image distortion correction unit.

REFERENCES:
patent: 5726775 (1998-03-01), Walsh
patent: 6075623 (2000-06-01), Yun
patent: 6385347 (2002-05-01), Matsuda
patent: 6687420 (2004-02-01), Matsuda et al.
patent: 2001/0046322 (2001-11-01), Saiga
patent: 2003/0123732 (2003-07-01), Miyazaki et al.
patent: 0 434 415 (1991-06-01), None
patent: 0 702 320 (1996-03-01), None
patent: 0 762 326 (1997-03-01), None
patent: 1 032 191 (2000-08-01), None
patent: 11-41455 (1999-02-01), None
Wada et al., “Shape From Shading With Interreflections Under A Proximal Light Source: Distortion-Free Copying Of An Unfolded Book”, International Journal Of Computer Vision, 24(2), pp125-135 (1997).
Ukida et al., “Recovering 3D shape Of Unfolded Book Surface From A Scanner Image Using Eigenspace Method”; IEICE Technical Report, PRMU99-91, pp23-30, Oct. 1999.

Affiliated with

Also associated with

Rating

Image distortion correction apparatus, distortion correction... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image distortion correction apparatus, distortion correction..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image distortion correction apparatus, distortion correction... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3598679