ENCODING METHOD AND DECODING METHOD, AND DEVICE USING SAME

    公开(公告)号:AU2016200938A1

    公开(公告)日:2016-03-03

    申请号:AU2016200938

    申请日:2016-02-12

    Abstract: An apparatus for decoding a video signal, comprising: a prediction mode determination unit configured to determine an intra prediction mode of a current block when a prediction mode of the current block 5 corresponds to an intra prediction; a scanning unit configured to perform a scan for the current block; and an inverse-transform unit configured to perform an inverse-transform for residual signal of the current block using at least one of discrete cosine transform (DCT) or discrete sine transform (DST), 10 wherein the scanning unit is further configured to determine, based on the intra prediction mode of the luma component, a scanning type of the luma component and a chroma component of the current block, and wherein when a size of the current block is 4x4, the inverse transform for the luma component of the current block is performed using only the DST.

    ENCODING METHOD AND DECODING METHOD, AND DEVICE USING SAME

    公开(公告)号:AU2016200779A1

    公开(公告)日:2016-02-25

    申请号:AU2016200779

    申请日:2016-02-08

    Abstract: An apparatus for decoding a video signal, comprising: an entropy decoding unit configured to decode information indicating whether 5 a prediction mode of a current block corresponds to an intra prediction or an inter prediction; a prediction mode determination unit configured to determine an intra prediction mode of the current block when the prediction mode of the current block corresponds to the intra prediction; 10 a scanning unit configured to perform a scan for the current block; and an inverse-transform unit configured to perform an inverse-transform for residual signal of the current block using at least one of discrete cosine transform (DCT) or discrete sine transform (DST), wherein the scanning unit is further configured to determine, based on the intra 15 prediction mode of the luma component, a scanning type of the luma component and a chroma component of the current block, and wherein when a size of the current block is 4x4, the inverse transform for the luma component of the current block is performed using only the DST.

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