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:
May. 11, 2010
Filed:
May. 28, 2003
Diego Garrido, Newtown, PA (US);
Richard Webb, Belmont, CA (US);
Simon Butler, San Rafael, CA (US);
Chad Fogg, Seattle, WA (US);
Diego Garrido, Newtown, PA (US);
Richard Webb, Belmont, CA (US);
Simon Butler, San Rafael, CA (US);
Chad Fogg, Seattle, WA (US);
Other;
Abstract
A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of receiving base layer images of standard definition pictures from a base layer decoder; defining image areas of the standard definition pictures; classifying image areas into image types by assigning a class number; and generating enhanced pictures based upon the standard definition pictures and the classification of the image areas. A circuit for enhancing picture quality of a video signal is also disclosed. The circuit comprising a base layer decoder; a classifier coupled to the base layer decoder, the classifier generating a class number for image areas of a standard definition picture; a summing circuit coupled to the classifier; an exchange stream decoder coupled to the summing circuit, the exchange stream decoder generating an index; and a codebook table coupled to the summing circuit. The codebook table preferably stores a plurality of codevectors based upon the class number and the index.