参考图像编码和解码的方法、编码设备和解码设备

    公开(公告)号:WO2017005141A1

    公开(公告)日:2017-01-12

    申请号:PCT/CN2016/088144

    申请日:2016-07-01

    Abstract: 本发明提供了一种参考图像编码的方法包括:编码待编码序列,获得第一参考图像的重构图像以及第二参考图像的重构图像;确定所述第二参考图像中的局部区域是否适用于更新所述第一参考图像中对应区域或者相关区域,;确定所述第一参考图像中对应区域或者相关区域是否已更新;当所述第一参考图像中对应区域或者相关区域未更新,且确定所述第二参考图像中的局部区域适用于更新所述第一参考图像中对应区域或者相关区域时,用所述第二参考图像中局部区域的像素值替换所述第一参考图像中对应区域或者相关区域的像素值;将用来确定所述第二参考图像中的局部区域是否用于更新所述第一参考图像中对应区域或者相关区域的参考图像更新信息编入码流。

    METHOD OF DECODED PICTURE BUFFER MANAGEMENT FOR INTRA BLOCK COPY MODE
    12.
    发明申请
    METHOD OF DECODED PICTURE BUFFER MANAGEMENT FOR INTRA BLOCK COPY MODE 审中-公开
    用于内部块复制模式的解码图像缓冲器管理方法

    公开(公告)号:WO2016192594A1

    公开(公告)日:2016-12-08

    申请号:PCT/CN2016/083737

    申请日:2016-05-27

    Abstract: Methods and Apparatus of managing decoded picture buffer for a video decoding system using Intra Block Copy (IBC) mode. In one embodiment, one or more previously reconstructed pictures after in-loop filtering are stored in a DPB (decoded picture buffer). For decoding a current picture, a first and a second picture buffers are allocated in the DPB. Both unfiltered version and filtered version of reconstructed current picture are stored in the first and second picture buffers. After the current picture is decoded, the unfiltered version is removed from the DPB. In another embodiment, an unfiltered version and filtered version of reconstructed current picture are stored. One of them is stored in the DPB and the other is stored in a temporary buffer. After the current picture is decoded, the unfiltered version is removed from the DPB or the temporary buffer.

    Abstract translation: 使用内部块复制(IBC)模式管理用于视频解码系统的解码图像缓冲器的方法和装置。 在一个实施例中,在环路滤波之后的一个或多个先前重构的图像被存储在DPB(解码图像缓冲器)中。 为了解码当前画面,在DPB中分配第一和第二画面缓冲器。 未过滤的版本和经重构的当前图像的滤波版本都存储在第一和第二图像缓冲器中。 在解码当前图片之后,将从DPB中删除未过滤的版本。 在另一个实施例中,存储未过滤的版本和重构的当前图像的滤波版本。 其中一个存储在DPB中,另一个存储在临时缓冲区中。 在解码当前图片之后,将从DPB或临时缓冲区中删除未过滤的版本。

    비디오 신호 처리 방법 및 장치
    14.
    发明申请
    비디오 신호 처리 방법 및 장치 审中-公开
    视频信号处理方法和设备

    公开(公告)号:WO2016085231A1

    公开(公告)日:2016-06-02

    申请号:PCT/KR2015/012643

    申请日:2015-11-24

    Inventor: 이배근 김주영

    Abstract: 본 발명에 따른 비디오 신호 처리 방법은 현재 픽쳐에 관한 현재 픽쳐 레퍼런스 플래그에 기초하여 참조 픽쳐 리스트를 생성하고, 현재 픽쳐 내의 현재 블록에 관한 모션 정보를 획득하며, 현재 픽쳐에 관한 참조 픽쳐 리스트와 상기 현재 블록의 모션 정보를 이용하여 현재 블록을 복원하고, 상기 복원된 현재 블록에 디블록킹 필터를 적용하는 것을 특징으로 한다.

    Abstract translation: 根据本发明的视频信号处理方法能够基于当前图像的当前图像参考标志产生参考图像列表,获得关于当前图像中的当前块的运动信息,恢复当前图像 通过使用当前图像的参考图像列表和当前块的运动信息来块,并且将去块滤波器应用于恢复的当前块。

    METHOD OF INTER-VIEW ADVANCED RESIDUAL PREDICTION IN 3D VIDEO CODING
    15.
    发明申请
    METHOD OF INTER-VIEW ADVANCED RESIDUAL PREDICTION IN 3D VIDEO CODING 审中-公开
    三维视频编码中的高级隐性预测方法

    公开(公告)号:WO2015196988A1

    公开(公告)日:2015-12-30

    申请号:PCT/CN2015/082169

    申请日:2015-06-24

    CPC classification number: H04N19/597 H04N19/52 H04N19/537 H04N19/573

    Abstract: A method and apparatus for inter-view ARP (advanced residual prediction) are disclosed. According to one embodiment, a first inter-view reference block of a first inter-view reference picture in a first reference view is determined using a current MV (motion vector) of the current block in an inter-view direction. A first MV associated with the first inter-view reference block is derived. If the first MV points to a second inter-view reference picture in a second reference view, the derived MV is set to a default derived MV. A second temporal reference block in the second temporal reference picture corresponding to the current block is identified using the derived MV. An inter-view residual predictor corresponding to the difference between a second inter-view reference block in the first reference view and the second temporal reference block is generated and used as a predictor for the current inter-view residual of the current block.

    Abstract translation: 公开了一种视频间ARP(高级残差预测)的方法和装置。 根据一个实施例,使用当前块在视图间方向上的当前MV(运动矢量)来确定第一参考视图中的第一视景间参考图片的第一视角间参考块。 导出与第一视频间参考块相关联的第一MV。 如果第一MV指向第二参考视图中的第二视图间参考图像,则将导出的MV设置为默认导出的MV。 使用导出的MV来识别对应于当前块的第二时间参考图像中的第二时间参考块。 产生与第一参考视图中的第二视角间参考块和第二时间参考块之间的差相对应的视角间残差预测器,并将其用作当前块的当前视角间残差的预测器。

    USING A CURRENT PICTURE AS A REFERENCE FOR VIDEO CODING
    16.
    发明申请
    USING A CURRENT PICTURE AS A REFERENCE FOR VIDEO CODING 审中-公开
    使用电流图像作为视频编码的参考

    公开(公告)号:WO2015143395A1

    公开(公告)日:2015-09-24

    申请号:PCT/US2015/021866

    申请日:2015-03-20

    Abstract: An example method for encoding or decoding video data includes storing, by a video coder and in a reference picture buffer, a version of a current picture of the video data, including the current picture in a reference picture list (RPL) used to predict the current picture, and coding, by the video coder and based on the RPL, a block of video data in the current picture based on a predictor block of video data included in the version of the current picture stored in the reference picture buffer.

    Abstract translation: 用于对视频数据进行编码或解码的示例性方法包括:通过视频编码器和参考图像缓冲器,将用于预测图像数据的参考图像列表(RPL)中的包括当前图像的视频数据的当前图像的版本存储 通过视频编码器并且基于RPL,基于存储在参考图像缓冲器中的当前图像的版本中包括的视频数据的预测块,当前图像中的视频数据块。

    CONTENT ADAPTIVE DOMINANT MOTION COMPENSATED PREDICTION FOR NEXT GENERATION VIDEO CODING
    18.
    发明申请
    CONTENT ADAPTIVE DOMINANT MOTION COMPENSATED PREDICTION FOR NEXT GENERATION VIDEO CODING 审中-公开
    内容自适应运动补偿预测下一代视频编码

    公开(公告)号:WO2015099816A1

    公开(公告)日:2015-07-02

    申请号:PCT/US2014/024694

    申请日:2014-03-12

    Abstract: A computer-implemented method for video coding comprising obtaining frames of pixel data and having a current frame and a decoded reference frame to use as a motion compensation reference frame for the current frame, forming a warped global compensated reference frame by displacing at least one portion of the decoded reference frame by using global motion trajectories, determining a motion vector indicating the motion of the at least one portion and motion from a position based on the warped global compensated reference frame to a position at the current frame, and forming a prediction portion based, at least in part, on the motion vectors and corresponding to a portion on the current frame.

    Abstract translation: 一种用于视频编码的计算机实现方法,包括获得像素数据的帧并具有当前帧和解码的参考帧以用作当前帧的运动补偿参考帧,通过移位至少一个部分来形成翘曲的全局补偿参考帧 通过使用全局运动轨迹来确定解码的参考帧,确定指示所述至少一个部分的运动的运动矢量和从基于所述翘曲的全局补偿参考帧的位置到当前帧的位置的运动,以及形成预测部分 至少部分地基于运动矢量并对应于当前帧上的一部分。

    BIT DEPTH VARIABLE FOR HIGH PRECISION DATA IN WEIGHTED PREDICTION SYNTAX AND SEMANTICS
    19.
    发明申请
    BIT DEPTH VARIABLE FOR HIGH PRECISION DATA IN WEIGHTED PREDICTION SYNTAX AND SEMANTICS 审中-公开
    加权预测语言和语义中高精度数据的位深可变

    公开(公告)号:WO2015069734A1

    公开(公告)日:2015-05-14

    申请号:PCT/US2014/064083

    申请日:2014-11-05

    Inventor: YU, Yue WANG, Limin

    CPC classification number: H04N19/577 H04N19/573 H04N19/70

    Abstract: Particular embodiments provide a variable, BitDepth, that may be set at a value based on a number of bits used to represent pixels in pictures of a video. The variable may be used in syntax elements in HEVC, such as the HEVC range extension, but other coding standards may be used. By using the variable, different resolutions for the video may be accommodated during the encoding and decoding process. For example, the number of pixels in the pictures may be represented by 8 bits, 10 bits, 12 bits, or another number of bits depending on the resolution. Using the BitDepth variable in the syntax provides flexibility in the motion estimation and motion compensation process. For example, syntax elements used in the weighted prediction process may take into account different numbers of bits used to represent the pictures.

    Abstract translation: 特定实施例提供可以被设置在基于用于表示视频的图片中的像素的位数的值的变量BitDepth。 该变量可用于HEVC中的语法元素,例如HEVC范围扩展,但也可以使用其他编码标准。 通过使用变量,可以在编码和解码过程期间适应视频的不同分辨率。 例如,根据分辨率,图像中的像素数可以由8位,10位,12位或其他位数表示。 在语法中使用BitDepth变量提供运动估计和运动补偿过程的灵活性。 例如,在加权预测处理中使用的语法元素可以考虑用于表示图像的不同位数。

    SIMPLIFIED PROCESSING OF WEIGHTED PREDICTION SYNTAX AND SEMANTICS USING A BIT DEPTH VARIABLE FOR HIGH PRECISION DATA
    20.
    发明申请
    SIMPLIFIED PROCESSING OF WEIGHTED PREDICTION SYNTAX AND SEMANTICS USING A BIT DEPTH VARIABLE FOR HIGH PRECISION DATA 审中-公开
    使用位深度可变的高精度数据的加权预测语言和语义的简化处理

    公开(公告)号:WO2015069729A1

    公开(公告)日:2015-05-14

    申请号:PCT/US2014/064073

    申请日:2014-11-05

    Inventor: YU, Yue WANG, Limin

    Abstract: Particular embodiments may remove a condition check in the semantics for checking a high-precision data flag. This simplifies the semantics used in the encoding and decoding process. In this case, even if the high-precision data flag is not set, the value of the weighted prediction syntax element is set by the BitDepth variable. However, even if the BitDepth is not considered high-precision data, such as 8 bits, the range for the weighted prediction syntax element is still the same as the fixed value. For example, the syntax elements luma_offset_l0[ i ], luma_offset_l1[ i ], delta_chroma_offset_l0[i][j], and delta_chroma_offset_l1[i][j] use the variable BitDepth as described above whether the flag extended_precision_processing_flag is enabled and not enabled to indicate whether the bit depth is above a threshold.

    Abstract translation: 特定实施例可以去除用于检查高精度数据标志的语义中的条件检查。 这简化了编码和解码过程中使用的语义。 在这种情况下,即使未设置高精度数据标志,加权预测语法元素的值也由BitDepth变量来设定。 然而,即使BitDepth不被认为是诸如8位的高精度数据,加权预测语法元素的范围仍然与固定值相同。 例如,语法元素luma_offset_l0 [i],luma_offset_l1 [i],delta_chroma_offset_l0 [i] [j]和delta_chroma_offset_l1 [i] [j]使用如上所述的变量BitDepth,无论标志extended_precision_processing_flag是否被使能,并且未被使能以指示 位深度是否高于阈值。

Patent Agency Ranking