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:
Nov. 21, 2006
Filed:
Mar. 13, 2003
Xin LI, Camas, WA (US);
Xin Li, Camas, WA (US);
Sharp Laboratories of America, Inc., Camas, WA (US);
Abstract
A method and apparatus for compressing compound images of the type containing text, graphics and photographic imagery. This method and apparatus offer significant simplicity and computational efficiency by progressing fundamentally through a first processing phase, wherein an original compound image is first separated into (1) a foreground (text and graphics) layer, and (2) a more pixel-complicated background (photographic imagery) layer, all based upon a simple region-growing segmentation algorithm, and then a follow-up phase which involves individual and differentiated compression of the two segmented layers. Simple regional boundary encodation is employed for the foreground layer, and a lifting-scheme-modified ASWT algorithm is employed for the background layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile