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    • 42. 发明申请
    • SIMPLIFIED SUB-PREDICTION UNIT (SUB-PU) MOTION PARAMETER INHERITENCE (MPI)
    • 简化子预测单元(SUB PU)运动参数不动(MPI)
    • WO2015131387A1
    • 2015-09-11
    • PCT/CN2014/073039
    • 2014-03-07
    • QUALCOMM INCORPORATEDLIU, HongbinCHEN, Ying
    • LIU, HongbinCHEN, Ying
    • H04N19/50
    • H04N19/597H04N19/52H04N19/70H04N2213/005
    • This disclosure describes techniques for simplifying depth inter mode coding in a three-dimensional (3D) video coding process, such as 3D-HEVC. The techniques include generating a motion parameter candidate list, e.g., merging candidate list, for a current depth prediction unit (PU). In some examples, the described techniques include determining that a sub-PU motion parameter inheritance (MPI) motion parameter candidate is unavailable for inclusion in the motion parameter candidate list for the current depth PU if motion parameters of a co-located texture block to a representative block of the current depth PU are unavailable. In some examples, the described techniques include deriving a sub-PU MPI candidate for inclusion in the motion parameter candidate list for the current depth PU only if a partition mode of the current depth PU is 2Nx2N.
    • 本公开描述了用于简化3D-HEVC等三维(3D)视频编码处理中的深度帧间编码的技术。 这些技术包括为当前深度预测单元(PU)生成运动参数候选列表,例如合并候选列表。 在一些示例中,所描述的技术包括确定如果将位置相同的纹理块的运动参数移动到一个或多个运动参数继承(MPI)运动参数候选的运动参数,则不能使用用于当前深度PU的运动参数候选列表 当前深度PU的代表块不可用。 在一些示例中,所描述的技术包括仅当当前深度PU的分区模式是2Nx2N时,才导出用于当前深度PU的运动参数候选列表中的子PU MPI候选。
    • 43. 发明申请
    • RESIDUAL CODING FOR DEPTH INTRA PREDICTION MODES
    • 用于深度预测模式的剩余编码
    • WO2015043501A1
    • 2015-04-02
    • PCT/CN2014/087511
    • 2014-09-26
    • QUALCOMM INCORPORATEDLIU, HongbinCHEN, YingZHANG, LiZHAO, Xin
    • LIU, HongbinCHEN, YingZHANG, LiZHAO, Xin
    • H04N13/00
    • H04N19/597H04N19/11H04N19/13H04N19/159H04N19/174H04N19/176H04N19/18H04N19/593H04N19/70H04N19/91
    • A video coder may perform a simplified depth coding (SDC) mode, including simplified residual coding, to code a depth block according to any of a variety of, e.g., at least three, depth intra prediction modes. For example, the video coder may perform the SDC mode for coding a depth block according to depth modeling mode (DMM) 3, DMM 4, or a region boundary chain coding mode. In such examples, the video coder may partition the depth block, and code respective DC residual values for each partition. In some examples, the video coder may perform the SDC mode for coding a depth block according to an intra prediction mode, e.g., an HEVC base specification intra prediction mode, such as a DC intra prediction mode or one of the directional intra prediction modes. In such examples, the video coder may code a single DC residual value for the depth block.
    • 视频译码器可执行包含简化残差译码的简化深度译码(SDC)模式以根据多种(例如,至少三种)深度帧内预测模式中的任一者对深度块进行译码 。 例如,视频译码器可根据深度建模模式(DMM)3,DMM4或区域边界链编码模式执行用于编码深度块的SDC模式。 在这样的示例中,视频编码器可以对深度块进行分区,并对每个分区的相应DC残差值进行编码。 在一些示例中,视频译码器可执行SDC模式以根据例如HEVC基本规格帧内预测模式(例如DC帧内预测模式或定向帧内预测模式中的一者)的帧内预测模式译码深度块。 在这样的示例中,视频编码器可以编码深度块的单个DC残余值。
    • 45. 发明申请
    • SIGNALING DEPTH RANGES FOR THREE-DIMENSIONAL VIDEO CODING
    • 用于三维视频编码的信令深度范围
    • WO2013074162A1
    • 2013-05-23
    • PCT/US2012/051139
    • 2012-08-16
    • QUALCOMM IncorporatedZHANG, LiCHEN, YingKARCZEWICZ, Marta
    • ZHANG, LiCHEN, YingKARCZEWICZ, Marta
    • H04N7/26H04N7/50
    • H04N19/61H04N19/30H04N19/597H04N19/70
    • In one example, a video coder, such as a video encoder or a video decoder, is configured to code a first set of one or more depth range values for a first set of video data, wherein the first set of one or more depth range values have respective first precisions, code a second set of one or more depth range values for a second set of video data, wherein the second set of one or more depth range values have respective second precisions different than the respective first precisions, and code at least a portion of the second set of video data using the second set of one or more depth range values. In this manner, the video coder may update precisions (e.g., numbers of bits) used to represent depth range values for coding multiview plus depth video data.
    • 在一个示例中,诸如视频编码器或视频解码器的视频编码器被配置为对第一组视频数据的第一组深度范围值进行编码,其中第一组一个或多个深度范围 值具有相应的第一精度,为第二组视频数据编码一个或多个深度范围值的第二组,其中一个或多个深度范围值的第二组具有与各自的第一精度不同的相应的第二精度, 使用第二组一个或多个深度范围值的第二组视频数据的至少一部分。 以这种方式,视频编码器可以更新用于表示用于对多视点加上深度视频数据进行编码的深度范围值的精度(例如,位数)。
    • 49. 发明申请
    • MOTION VECTOR PREDICTION IN VIDEO CODING
    • 运动矢量预测在视频编码
    • WO2012145663A1
    • 2012-10-26
    • PCT/US2012/034508
    • 2012-04-20
    • QUALCOMM INCORPORATEDCHEN, YingCHEN, PeisongKARCZEWICZ, Marta
    • CHEN, YingCHEN, PeisongKARCZEWICZ, Marta
    • H04N7/26
    • H04N19/513H04N19/105H04N19/147H04N19/176H04N19/46H04N19/52H04N19/597
    • Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.
    • 本公开的方面在一个示例中涉及一种包括从第一视图识别第一时间位置中的第一视频数据块的方法,其中第一块与第一视差运动矢量相关联。 该方法还包括确定与第二视频数据块相关联的第二运动矢量的运动矢量预测器,其中运动矢量预测器基于第一视差运动矢量。 当第二运动矢量包括视差运动矢量时,该方法包括确定运动矢量预测器包括缩放第一视差运动矢量以产生缩放运动矢量预测器,其中缩放第一视差运动矢量包括应用包括视距 的第二视差运动矢量除以第一运动矢量与第一视差运动矢量的视距。
    • 50. 发明申请
    • COMBINED REFERENCE PICTURE LIST CONSTRUCTION AND MAPPING
    • 组合参考图表列表结构和映射
    • WO2012134956A1
    • 2012-10-04
    • PCT/US2012/030153
    • 2012-03-22
    • QUALCOMM IncorporatedCHIEN, Wei-JungCHEN, YingKARCZEWICZ, Marta
    • CHIEN, Wei-JungCHEN, YingKARCZEWICZ, Marta
    • H04N7/26
    • H04N19/172H04N19/103H04N19/44H04N19/70
    • The example techniques of this disclosure are directed to default construction techniques for the construction of a combined reference picture list, and default mapping techniques for the combined reference picture list. In some examples, a video coder may construct first and second reference picture lists from frame number values, and construct the combined reference picture list from the frame number values of the first and second reference picture lists. In some examples, a video coder may construct first and second reference picture lists from picture order count (POC) values, and construct the combined reference picture list from the POC values of the first and second reference picture lists. In some examples, a video coder may construct a combined reference picture list from received information for the construction, and map the pictures of the combined reference picture list to one of a first or second reference picture list.
    • 本公开的示例性技术涉及用于构建组合参考图片列表的默认构造技术以及用于组合的参考图片列表的默认映射技术。 在一些示例中,视频编码器可以从帧号值构造第一和第二参考图片列表,并且从第一和第二参考图片列表的帧号码构造组合的参考图片列表。 在一些示例中,视频编码器可以从图像顺序计数(POC)值构建第一和第二参考图像列表,并且从第一和第二参考图像列表的POC值构建组合的参考图像列表。 在一些示例中,视频编码器可以从用于构造的接收信息构建组合参考图片列表,并将组合的参考图片列表的图片映射到第一或第二参考图片列表中的一个。