METHOD AND APPARATUS FOR ADAPTIVELY SELECTING CONTEXT MODEL OF ENTROPHY CODING

摘要

A method for encoding a residual prediction flag of a video signal, a method for decoding the residual prediction flag of the video signal, and a video decoder are provided to reduce the amount of data required for a prediction method through data for a base layer. Residual data for a base layer are obtained(S301). It is determined whether the energy of the residual data for the base layer or a CBP(Coded Block Pattern) value is zero(S302). If the energy of the residual data for the base layer or the CBP value is not zero, the value of a residual predication flag is obtained(S312). A reversed residual predication flag, which is defined as a value of one minus the residual predication flag, is encoded(S316).