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. 17, 2011
Filed:
May. 01, 2003
Thomas Pun, Sunnyvale, CA (US);
Roger Kumar, San Francisco, CA (US);
Xiaochun Nie, Cupertino, CA (US);
Hsi-jung Wu, Sunnyvale, CA (US);
Thomas Pun, Sunnyvale, CA (US);
Roger Kumar, San Francisco, CA (US);
Xiaochun Nie, Cupertino, CA (US);
Hsi-Jung Wu, Sunnyvale, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Some embodiments of the invention provide a method for encoding a video signal that is formed by a series of successive images. Each image includes several sections, and each section has a set of image values. To encode a particular section of a particular image, the method initially partitions the particular section into several sub-sections. For each of at least two particular sub-sections, the method then computes a statistical parameter regarding the image values of the particular sub-section. The method compares the computed statistical parameters, and based on the comparison, selects an encoding technique from a set of encoding techniques to encode the particular section. In some embodiments, the set of encoding schemes includes a first scheme that encodes the selected section without reference to any other section of any other image, and a second scheme that encodes the selected section by reference to at least one other section.