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    SAMPLE ADAPTIVE OFFSET (SAO) ADJUSTMENT METHOD AND APPARATUS AND SAO ADJUSTMENT DETERMINATION METHOD AND APPARATUS
    67.
    发明申请
    SAMPLE ADAPTIVE OFFSET (SAO) ADJUSTMENT METHOD AND APPARATUS AND SAO ADJUSTMENT DETERMINATION METHOD AND APPARATUS 有权
    样品自适应偏差（SAO）调整方法和设备和调整测定方法和设备

    公开(公告)号：US20150172678A1

    公开(公告)日：2015-06-18

    申请号：US14407327

    申请日：2013-06-11

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Elena Alshina ,  Alexander Alshin

    IPC: H04N19/174 ,  H04N19/157 ,  H04N19/44 ,  H04N19/13

    CPC classification number: H04N19/13 ,  H04N19/117 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46 ,  H04N19/82 ,  H04N19/86 ,  H04N19/91

    Abstract: A sample adaptive offset (SAO) adjustment method, the method includes: obtaining slice SAO parameters with respect to a current slice from a slice header of a received bitstream; obtaining luma SAO use information for a luma component of the current slice and chroma SAO use information for chroma components of the current slice from the slice SAO parameters; determining whether to perform an SAO adjustment on the luma component of the current slice based on the obtained luma SAO use information; and determining whether to perform an SAO adjustment on a first chroma component and a second chroma component of the current slice based on the obtained chroma SAO use information.

    Abstract translation: 一种采样自适应偏移（SAO）调整方法，所述方法包括：从接收到的比特流的片头获得关于当前片的切片SAO参数; 从切片SAO参数获取亮度SAO使用信息用于当前切片的亮度分量和色度SAO使用信息用于当前切片的色度分量; 基于获得的亮度SAO使用信息确定是否对当前切片的亮度分量执行SAO调整; 以及基于获得的色度SAO使用信息来确定是否对当前片的第一色度分量和第二色度分量执行SAO调整。

    VIDEO ENCODING METHOD USING OFFSET ADJUSTMENT ACCORDING TO CLASSIFICATION OF PIXELS BY MAXIMUM ENCODING UNITS AND APPARATUS THEREOF, AND VIDEO DECODING METHOD AND APPARATUS THEREOF
    68.
    发明申请
    VIDEO ENCODING METHOD USING OFFSET ADJUSTMENT ACCORDING TO CLASSIFICATION OF PIXELS BY MAXIMUM ENCODING UNITS AND APPARATUS THEREOF, AND VIDEO DECODING METHOD AND APPARATUS THEREOF 有权
    使用最大编码单位对像素进行偏移调整的视频编码方法及其设备及其视频解码方法及装置

    公开(公告)号：US20140369420A1

    公开(公告)日：2014-12-18

    申请号：US14368136

    申请日：2012-12-21

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Elena Alshina ,  Alexander Alshin

    IPC: H04N19/44

    CPC classification number: H04N19/176 ,  H04N19/117 ,  H04N19/136 ,  H04N19/14 ,  H04N19/182 ,  H04N19/186 ,  H04N19/463 ,  H04N19/65 ,  H04N19/82 ,  H04N19/96

    Abstract: A video decoding method includes extracting offset mergence information of a current largest coding unit (LCU), the offset mergence information indicating whether to adopt a second offset parameter as a first offset parameter of the current LCU; reconstructing the first offset parameter of the current LCU based on the offset mergence information, the first offset parameter including an offset type, an offset value, and an offset class of the current LCU; determining whether the current LCU is an edge type or a band type, based on the offset type; determining an edge direction according to the edge type or a band range according to the band type, based on the offset class; determining a difference value between reconstructed pixels and original pixels included in the offset class, based on the offset value; and adjusting pixel values of reconstructed pixels based on the difference value.

    Abstract translation: 视频解码方法包括提取当前最大编码单元（LCU）的偏移合并信息，该偏移合并信息指示是否采用第二偏移参数作为当前LCU的第一偏移参数; 基于偏移合并信息重构当前LCU的第一偏移参数，第一偏移参数包括当前LCU的偏移类型，偏移值和偏移等级; 基于偏移类型确定当前LCU是边缘类型还是带类型; 基于偏移等级，根据边缘类型或根据频带类型的频带范围确定边缘方向; 基于所述偏移值来确定所述偏移类别中包括的重建像素与原始像素之间的差值; 以及基于所述差值来调整重构像素的像素值。

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