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:
Aug. 05, 2008
Filed:
Jul. 19, 2007
Eric Ameres, Cohoes, NY (US);
James Bankoski, Wynantskill, NY (US);
Adrian Grange, Cambridge, GB;
Paul Wilkins, Cambridge, GB;
Yaowu Xu, Clifton Park, NY (US);
Eric Ameres, Cohoes, NY (US);
James Bankoski, Wynantskill, NY (US);
Adrian Grange, Cambridge, GB;
Paul Wilkins, Cambridge, GB;
Yaowu Xu, Clifton Park, NY (US);
On2 Technologies, Inc., Tarrytown, NY (US);
Abstract
A method of image and video compression including data re-ordering to improve the performance of the core compression algorithm. In the inventive method, pixel values of at least part of an image are examined and then re-ordered into a new order that has greater compactability than the original pixel order. The re-ordered pixel values are then compressed, e.g., by block transform. In the particular case of a compression scheme employing a block transform, the inventive method reduces the complexity of the transform coefficients, resulting in more efficient compression. The method may be added to existing compression algorithms with only minor modifications to the bitstream and decoder architecture.