METHOD AND APPARATUS FOR OPERATIONAL FRAME-LAYER R

专利名称：METHOD AND APPARATUS FOR

OPERATIONAL FRAME-LAYER RATECONTROL IN VIDEO ENCODER

发明人：Do-Kyoung Kwon,Meiyin Shen,Chung-Chieh

KUO

申请号：US11160735申请日：20050706

公开号：US20070009025A1公开日：20070111

专利附图：

摘要：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 MBmodes for all MBs in a current frame through R-D optimization, and the residual signal isencoded and then decoded for intra prediction. The residual signal is stored and thenumber of header bits is estimated from the determined MB modes and MVs. Given atarget bit-rate for the current frame, a new QP is determined by a rate model. In asecond-step encoding stage, the residual signal is encoded and reconstructed for bothintra-prediction of subsequent MBs and inter prediction of subsequent frames using the

new QP.

申请人：Do-Kyoung Kwon,Meiyin Shen,Chung-Chieh KUO

地址：Yongin KR,Kao-Hsiung City TW,Taipei City TW

国籍：KR,TW,TW

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