Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-01-31
2011-10-04
Senfi, Behrooz (Department: 2482)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240240
Reexamination Certificate
active
08031774
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.
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Mediatek Incoropration
Senfi Behrooz
Thomas|Kayden
LandOfFree
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