Motion vector rounding
    61.
    发明授权
    Motion vector rounding 有权
    运动矢量四舍五入

    公开(公告)号:US09325991B2

    公开(公告)日:2016-04-26

    申请号:US13860460

    申请日:2013-04-10

    Abstract: A video decoder determines, based at least in part on a size of a prediction unit (PU), whether to round either or both a horizontal or a vertical component of a motion vector of the PU from sub-pixel accuracy to integer-pixel accuracy. The video decoder generates, based at least in part on the motion vector, a predictive sample block for the PU and generates, based in part on the predictive sample block for the PU, a reconstructed sample block.

    Abstract translation: 视频解码器至少部分地基于预测单元(PU)的大小来确定是否将PU的运动矢量的水平或垂直分量从子像素精度舍入到整数像素精度 。 视频解码器至少部分地基于运动矢量生成PU的预测采样块,并且部分地基于PU的预测采样块产生重建的采样块。

    Alternative transform in scalable video coding
    62.
    发明授权
    Alternative transform in scalable video coding 有权
    可扩展视频编码中的替代变换

    公开(公告)号:US09319684B2

    公开(公告)日:2016-04-19

    申请号:US13969406

    申请日:2013-08-16

    Abstract: An apparatus for coding video data according to certain aspects includes a memory and a processor in communication with the memory. The memory stores video block information. The video block information includes reference layer block information. The processor determines, based on a parameter of the video block information, a transform function that may be used to code the video block information. The processor may encode or decode the video block information. The transform function may be an alternative transform when the parameter is a predetermined value and a primary transform when the parameter is not the predetermined value. The alternative transform includes one of: a discrete-sine-transform (DST), a Type-I DST, a Type-III DST, a Type-IV DST, a Type-VII DST, a discrete-cosine-transform (DCT), a DCT of different types, and a Karhunen-Loeve transform (KLT).

    Abstract translation: 根据某些方面的用于编码视频数据的装置包括与存储器通信的存储器和处理器。 存储器存储视频块信息。 视频块信息包括参考层块信息。 处理器基于视频块信息的参数确定可用于对视频块信息进行编码的变换函数。 处理器可以对视频块信息进行编码或解码。 当参数是预定值时,变换函数可以是替代变换,并且当参数不是预定值时,变换函数可以是一次变换。 替代变换包括以下之一:离散正弦变换(DST),I型DST,III型DST,Type-IV DST,Type-VII DST,离散余弦变换(DCT) ,不同类型的DCT,以及Karhunen-Loeve变换(KLT)。

    CONFORMANCE WINDOW INFORMATION IN MULTI-LAYER CODING
    64.
    发明申请
    CONFORMANCE WINDOW INFORMATION IN MULTI-LAYER CODING 有权
    多层编码中的兼容窗口信息

    公开(公告)号:US20150304666A1

    公开(公告)日:2015-10-22

    申请号:US14689000

    申请日:2015-04-16

    Abstract: A system and method for coding a picture in a multi-layer bitstream is disclosed. In one aspect, the method includes encoding at least one layer of the multi-layer bitstream in accordance with a first coding scheme. The multi-layer bitstream may comprise a base layer. The method further includes encoding a conformance window flag and at least one position offset for the picture in a Video Parameter Set (VPS) of the base layer. The conformance window flag may indicate that the VPS comprises the at least one position offset.

    Abstract translation: 公开了一种用于对多层比特流中的图像进行编码的系统和方法。 一方面,该方法包括根据第一编码方案对多层比特流的至少一层进行编码。 多层比特流可以包括基本层。 该方法还包括对基本层的视频参数集(VPS)中的一致性窗口标志和图像的至少一个位置偏移进行编码。 一致性窗口标志可以指示VPS包括至少一个位置偏移。

    COLOR RESIDUAL PREDICTION FOR VIDEO CODING
    65.
    发明申请
    COLOR RESIDUAL PREDICTION FOR VIDEO CODING 审中-公开
    用于视频编码的颜色残留预测

    公开(公告)号:US20150124865A1

    公开(公告)日:2015-05-07

    申请号:US14528794

    申请日:2014-10-30

    Abstract: A method of decoding video data includes decoding a first block of video data to produce a block of reconstructed luma residual values and a block of predicted chroma residual values, wherein the block of video data has one of a 4:2:0 or a 4:2:2 chroma sub-sampling format. The method further includes performing a color residual prediction process to reconstruct a block of chroma residual values for the first block of video data using a subset of the reconstructed luma residual values as luma predictors for the block of predicted chroma residual values.

    Abstract translation: 解码视频数据的方法包括解码第一视频数据块以产生重构亮度残差值块和预测色度残差值块,其中视频数据块具有4:2:0或4中的一个 :2:2色度次采样格式。 该方法还包括执行彩色残差预测处理,以使用重建的亮度残差值的子集作为预测色度残差值块的亮度预测器来重构第一视频数据块的色度残差块。

    ADAPTIVE INTER-COLOR COMPONENT RESIDUAL PREDICTION
    66.
    发明申请
    ADAPTIVE INTER-COLOR COMPONENT RESIDUAL PREDICTION 有权
    自适应互连色彩组件残留预测

    公开(公告)号:US20150117519A1

    公开(公告)日:2015-04-30

    申请号:US14524601

    申请日:2014-10-27

    Abstract: A device for decoding video data includes a memory configured to store video data, and at least one processor. The at least one processor is configured to: determine a first bit-depth of luma residual samples for a block of video data, determine a second bit-depth of predicted chroma residual samples for the block of video data, adjust the luma residual samples based on the first bit-depth and the second bit-depth to produce bit-depth adjusted luma residual samples, determine chroma residual samples for the block of video data based on the bit-depth adjusted luma residual samples and the predicted chroma residual samples, and decode the block of video data based on the luma residual samples and the chroma residual samples.

    Abstract translation: 用于解码视频数据的设备包括被配置为存储视频数据的存储器以及至少一个处理器。 所述至少一个处理器被配置为:确定视频数据块的亮度残差样本的第一位深度,确定所述视频数据块的预测色度残差样本的第二位深度,基于所述视差数据块调整所述亮度残差样本 在第一位深度和第二位深度上,以产生位深度调整的亮度残差样本,基于比特深度调整的亮度残差样本和预测色残余样本,确定视频数据块的色度残差样本,以及 基于亮度残差样本和色度残差样本对视频数据块进行解码。

    OPTIMIZATIONS ON INTER-LAYER PREDICTION SIGNALLING FOR MULTI-LAYER VIDEO CODING
    67.
    发明申请
    OPTIMIZATIONS ON INTER-LAYER PREDICTION SIGNALLING FOR MULTI-LAYER VIDEO CODING 有权
    用于多层视频编码的层间预测信号优化

    公开(公告)号:US20150010050A1

    公开(公告)日:2015-01-08

    申请号:US14318193

    申请日:2014-06-27

    Abstract: A method of coding video data includes receiving one or more layers of video information. Each layer may include at least one picture. The method can include processing an indicator within at least one of a video parameter set (VPS), a sequence parameter set (SPS), or a picture parameter set (PPS) that indicates whether all direct reference layer pictures associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS) are added to an inter-layer reference picture set. Based on the indicator, the method can further include refraining from further signaling inter-layer reference picture information in any video slice associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS). Alternatively, based on the indicator, the method can further include adding to the inter-layer reference picture set all direct reference layer pictures for any video slice associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS).

    Abstract translation: 一种编码视频数据的方法包括接收一层或多层视频信息。 每个层可以包括至少一个图片。 该方法可以包括处理视频参数集(VPS),序列参数集(SPS)或图像参数集(PPS)中的至少一个中的指示符,该指示符指示是否与至少一个 的视频参数集(VPS),序列参数集(SPS)或图像参数集(PPS)被添加到层间参考图像集合中。 基于指示符,该方法还可以包括在与视频参数集(VPS),序列参数集(SPS)或图像中的至少一个相关联的任何视频片段中进一步抑制信号层间参考图像信息 参数集(PPS)。 或者,基于指示符,该方法还可以包括将与视频参数集(VPS),序列参数集(VPS)中的至少一个相关联的任何视频片段的所有直接参考图像集合添加到层间参考图像集合 SPS)或图像参数集(PPS)。

    CROSS-LAYER ALIGNMENT IN MULTI-LAYER VIDEO CODING
    68.
    发明申请
    CROSS-LAYER ALIGNMENT IN MULTI-LAYER VIDEO CODING 审中-公开
    多层视频编码中的跨层对齐

    公开(公告)号:US20140301436A1

    公开(公告)日:2014-10-09

    申请号:US14230853

    申请日:2014-03-31

    CPC classification number: H04N19/30 H04N19/172 H04N19/187 H04N19/188 H04N19/70

    Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a video processor in communication with the memory unit. The video processor is configured to identify a first picture included in the first set of pictures, wherein pictures within the first set of pictures having an output position after the output position of the first picture also have a decoding position after the decoding position of the first picture. The video processor is further configured to identify a second picture included in the second set of pictures, wherein pictures within the second set of pictures having an output position after the output position of the second pictures also have a decoding position after the decoding position of the second picture. The video processor is also configured to code the identified first picture and the identified second picture via one syntax element into one access unit.

    Abstract translation: 根据某些方面的用于编码视频信息的装置包括与存储器单元通信的存储器单元和视频处理器。 视频处理器被配置为识别包括在第一组图像中的第一图像,其中在第一图像的输出位置之后具有输出位置的第一组图像内的图像在第一图像的解码位置之后还具有解码位置 图片。 视频处理器还被配置为识别包括在第二组图像中的第二图像,其中具有在第二图像的输出位置之后的输出位置的第二组图像内的图像还具有在解码位置之后的解码位置 第二张图片。 视频处理器还被配置为经由一个语法元素将所识别的第一图像和所识别的第二图像编码为一个访问单元。

    COEFFICIENT LEVEL CODING
    69.
    发明申请
    COEFFICIENT LEVEL CODING 审中-公开
    系统级编码

    公开(公告)号:US20130188698A1

    公开(公告)日:2013-07-25

    申请号:US13743846

    申请日:2013-01-17

    Abstract: In one example, a device includes a video coder configured to code a first set of syntax elements for the coefficients of a residual block of video data, and code, using at least a portion of the first set of syntax elements as context data, a second set of syntax elements for the coefficients, wherein the first set of syntax elements each correspond to a first type of syntax element for the coefficients, and wherein the second set of syntax elements each correspond to a second, different type of syntax element for the coefficients. For example, the first set of syntax elements may comprise values indicating whether the coefficients are significant (that is, have non-zero level values), and the second set of syntax elements may comprise values indicating whether level values for the coefficients have absolute values greater than one.

    Abstract translation: 在一个示例中,设备包括视频编码器,其被配置为使用第一组语法元素的至少一部分作为上下文数据来编码视频数据的残余块的系数的第一组语法元素和代码, 用于所述系数的第二组语法元素,其中所述第一语法元素集合每个对应于所述系数的第一类型的语法元素,并且其中所述第二语法元素集合每个对应于用于所述系数的第二不同类型的语法元素 系数。 例如,第一组语法元素可以包括指示系数是否是重要的值(即,具有非零电平值)的值,并且第二组语法元素可以包括指示系数的电平值是否具有绝对值的值 大于一。

    MOTION VECTOR CANDIDATE INDEX SIGNALING IN VIDEO CODING
    70.
    发明申请
    MOTION VECTOR CANDIDATE INDEX SIGNALING IN VIDEO CODING 审中-公开
    运动矢量候选指令在视频编码中的信号

    公开(公告)号:US20130177083A1

    公开(公告)日:2013-07-11

    申请号:US13733736

    申请日:2013-01-03

    CPC classification number: H04N19/70 H04N19/52

    Abstract: A video encoder generates a first and a second candidate list. The first candidate list includes a plurality of motion vector (MV) candidates. The video encoder selects, from the first candidate list, a MV candidate for a first prediction unit (PU) of a coding unit (CU). The second MV candidate list includes each of the MV candidates of the first MV candidate list except the MV candidate selected for the first PU. The video encoder selects, from the second MV candidate list, a MV candidate for a second PU of the CU. A video decoder generates the first and second MV candidate lists in a similar way and generates predictive sample blocks for the first and second PUs based on motion information of the selected MV candidates.

    Abstract translation: 视频编码器生成第一和第二候选列表。 第一候选列表包括多个运动矢量(MV)候选。 视频编码器从第一候选列表中选择用于编码单元(CU)的第一预测单元(PU)的MV候选。 第二MV候选列表包括除了为第一PU选择的MV候选之外的第一MV候选列表的MV候选中的每一个。 视频编码器从第二MV候选列表中选择CU的第二PU的MV​​候选。 视频解码器以类似的方式生成第一和第二MV候选列表,并且基于所选择的MV候选的运动信息生成第一和第二PU的预测采样块。

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