The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2002
Filed:
Feb. 04, 1999
Hakan Ancin, Sunnyvale, CA (US);
Sean Miceli, Sunnyvale, CA (US);
Sean Gugler, Santa Clara, CA (US);
Anoop Bhattacharjya, Sunnyvale, CA (US);
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image processor ( ) in a photocopier ( ) takes composite input image ( ) that includes a plurality of skewed sub-images ( , and ). It revises the image so as to produce an output composite image ( ) containing aligned sub-images ( , and ). To identify the input image's sub-images, the image processor ( ) identifies connected groups ( and ) of pixels that meet certain criteria, and it eliminates from consideration each group ( ) whose bounding box ( ) is included within the bounding box ( ) of another connected group ( ). Skew angles for the different sub-images are determined by finding the best-fit lines through the outline pixels of their respective connected groups, and the sub-images are de-skewed by the negatives of those lines' angles.