Data processing apparatus and method of processing data

Computer graphics processing and selective visual display system – Computer graphics processing – Graphic manipulation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C345S611000, C382S275000

Reexamination Certificate

active

07002603

ABSTRACT:
A data processing apparatus is operable to determine non-linear distortion applied to an image in which template signals have been introduced into at least first and second frequency bands of the image respectively, the template signals having a predetermined relationship with each other. The apparatus comprises an image dividing processor operable to generate data representative of selected parts of the image, a transform detection processor operable to generate at least one parameter representative of a linear transformation applied to each of the parts of the image, and a non-linear transform processor operable to estimate parameters of a non-linear transformation representative of the non-linear distortion applied to the image from the linear transform parameters of at least two parts of the image.The data processing apparatus provides a facility for determining parameters of a non-linear transform representative of the distortion applied to the image as a whole. The distortion is therefore evaluated by generating linear transform parameters for different parts of the image and then determining the non-linear transform parameters in accordance with a relationship with the linear transform parameters. The linear transform may be the Affine transform, the parameters determined being Affine transform parameters. The non-linear transform may be the Perspective transform or a Polynomial transform, the non-linear transform parameters being evaluated from the linear transform parameters.

REFERENCES:
patent: 5353117 (1994-10-01), Holman et al.
patent: 5394483 (1995-02-01), Daly
patent: 5557417 (1996-09-01), Ishii
patent: 5574499 (1996-11-01), Nasu
patent: 5648987 (1997-07-01), Yang et al.
patent: 6421636 (2002-07-01), Cooper et al.
patent: 6483927 (2002-11-01), Brunk et al.

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

Data processing apparatus and method of processing data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data processing apparatus and method of processing data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data processing apparatus and method of processing data will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3625724

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