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:
Jul. 15, 2014
Filed:
Mar. 31, 2009
Hsi-jung Wu, San Jose, CA (US);
Xiaosong Zhou, San Jose, CA (US);
Xiaojin Shi, Fremont, CA (US);
Yuxin Liu, Cupertino, CA (US);
Hsi-Jung Wu, San Jose, CA (US);
Xiaosong Zhou, San Jose, CA (US);
Xiaojin Shi, Fremont, CA (US);
Yuxin Liu, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Apparatuses and methods for improving coding processes and coding parameters for coding video data are provided for. A coder may select coding parameters for video data according to a default coding policy. The default coding policy may include selection of prediction modes (e.g., intra-coding or inter-coding) for each pixel group in each frame. A video coder may select some pixel groups in a frame to be coded as refresh pixel groups as an exception to the default assignment policies. The selection of refresh pixel groups may be based on prediction relationships among multiple frames of source video data. The default coding of the refresh pixel groups is then modified to enhanced the coding of the refresh pixel groups. The refresh pixel groups may permit fewer intra (I) frames be sent and/or may improve the quality of the recovered video.