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:
Oct. 04, 2011
Filed:
Jan. 31, 2005
Do-kyoung Kwon, Kyunggi, KR;
Do-Kyoung Kwon, Kyunggi, KR;
Mediatek Incoropration, Hsin-Chu, TW;
Abstract
A frame-layer rate control method, and a video encoding method and system. In a first-step encoding stage, a QP of a previous frame is used to determine MVs and MB modes for all MBs in a current frame through R-D optimization, and the residual signal is encoded and then decoded for intra prediction. The residual signal is stored and the number of header bits is estimated from the determined MB modes and MVs. Given a target bit-rate for the current frame, a new QP is determined by a rate model. In a second-step encoding stage, the residual signal is encoded and reconstructed for both intra-prediction of subsequent MBs and inter prediction of subsequent frames using the new QP.