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    • 2. 发明公开
    • SUB-PREDICTION UNIT (PU) BASED TEMPORAL MOTION VECTOR PREDICTION IN HEVC AND SUB-PU DESIGN IN 3D-HEVC
    • AUF EINERSUBPRÄDIKTIONSEINHEITBASERERENDE ZEITLICHE BEWEGUNGSVEKTORVORHERSHERSAGE IN HEVC UNDSUBPRÄDIKTIONSEINHEITSKONZEPTIN 3D-HEVC
    • EP3050295A1
    • 2016-08-03
    • EP14782053.4
    • 2014-09-26
    • Qualcomm Incorporated
    • CHEN, YingVAN DER AUWERA, GeertZHANG, LiLIU, Hongbin
    • H04N19/00
    • H04N19/597H04N19/197H04N19/52H04N19/53H04N19/56
    • Techniques are described for sub-prediction unit (PU) based motion prediction for video coding in HEVC and 3D-HEVC. In one example, the techniques include an advanced temporal motion vector prediction (TMVP) mode to predict sub-PUs of a PU in single layer coding for which motion vector refinement may be allowed. The advanced TMVP mode includes determining motion vectors for the PU in at least two stages to derive motion information for the PU that includes different motion vectors and reference indices for each of the sub-PUs of the PU. In another example, the techniques include storing separate motion information derived for each sub-PU of a current PU predicted using a sub-PU backward view synthesis prediction (BVSP) mode even after motion compensation is performed. The additional motion information stored for the current PU may be used to predict subsequent PUs for which the current PU is a neighboring block.
    • 描述了用于在HEVC和3D-HEVC中用于视频编码的子预测单元(PU)的运动预测技术。 在一个示例中,这些技术包括高级时间运动矢量预测(TMVP)模式,用于预测可以允许运动矢量细化的单层编码中的PU的子PU。 高级TMVP模式包括至少在两个阶段中确定PU的运动矢量,以导出PU的运动信息,其包括PU的每个子PU的不同运动矢量和参考索引。 在另一示例中,该技术包括存储针对使用子PU后视合成预测(BVSP)模式预测的当前PU预测的每个子PU导出的分离运动信息,即使在执行运动补偿之后。 为当前PU存储的附加运动信息可以用于预测当前PU是相邻块的后续PU。
    • 3. 发明公开
    • SIMPLIFIED ADVANCED MOTION PREDICTION FOR 3D-HEVC
    • 三维3D-HEVC ERWEITERTE VEREINFACHTEBEWEGUNGSPRÄDIKTION
    • EP3028466A1
    • 2016-06-08
    • EP13889840.8
    • 2013-12-24
    • Qualcomm Incorporated
    • ZHANG, LiCHEN, YingTHIRUMALAI, VijayaraghavanLIU, Hongbin
    • H04N19/51
    • H04N19/597H04N19/52H04N19/70H04N19/96
    • A video coder determines a candidate for inclusion in a candidate list for a current prediction unit (PU). The candidate is based on motion parameters of a plurality of sub-PUs of the current PU. If a reference block corresponding to a sub-PU is not coded using motion compensated prediction, the video coder sets the motion parameters of the sub-PU to default motion parameters. For each respective sub-PU from the plurality of sub-PUs, if a reference block for the respective sub-PU is not coded using motion compensated prediction, the motion parameters of the respective sub-PU are not set in response to a subsequent determination that a reference block for any later sub-PU in an order is coded using motion compensated prediction.
    • 视频编码器确定用于包括在当前预测单元(PU)的候选列表中的候选。 候选者基于当前PU的多个子PU的运动参数。 如果对应于子PU的参考块不使用运动补偿预测编码,则视频编码器将子PU的运动参数设置为默认运动参数。 对于来自多个子PU的各个子PU,如果用于各个子PU的参考块不使用运动补偿预测编码,则相应子PU的运动参数不响应于随后的确定而被设置 使用运动补偿预测编码用于任何后续子PU的参考块。
    • 4. 发明公开
    • CONSTRAINED DEPTH INTRA MODE CODING FOR 3D VIDEO CODING
    • INTRAMODALE CODIERUNG MITEINGESCHRÄNKTERTIEFEFÜR3D-VIDEOCODIERUNG
    • EP3117616A1
    • 2017-01-18
    • EP14885275.9
    • 2014-03-13
    • Qualcomm Incorporated
    • LIU, HongbinCHEN, Ying
    • H04N19/597
    • H04N19/597H04N19/11H04N19/119H04N19/159H04N19/176H04N19/593H04N19/70H04N19/96
    • This disclosure describes techniques for constraining depth intra mode coding in a three-dimensional (3D) video coding process, such as 3D-High Efficiency Video Coding (3D-HEVC). In some examples, the techniques for constraining depth intra mode coding may prevent transform tree nodes from being split into sub-transform tree nodes when a depth prediction unit that corresponds to the transform tree node is predicted according to a depth modeling mode (DMM). In further examples, the techniques for constraining depth intra mode coding may prevent the DMM mode from being used when the maximum transform unit size that corresponds to a depth prediction unit is greater than the size of the depth prediction unit. The techniques for constraining depth intra mode coding may prevent characteristics of the DMM prediction modes used in 3D-HEVC and characteristics of the transform tree subdivision used in 3D-HEVC from interfering with each other.
    • 本公开描述了在3D-高效率视频编码(3D-HEVC)三维(3D)视频编码过程中约束深度帧内模式编码的技术。 在一些示例中,当根据深度建模模式(DMM)预测与变换树节点相对应的深度预测单元时,用于约束深度帧内模式编码的技术可以防止变换树节点被分割成子变换树节点。 在另外的例子中,当对应于深度预测单元的最大变换单位大小大于深度预测单元的大小时,用于约束深度帧内编码的技术可以防止使用DMM模式。 限制深度帧内模式编码的技术可以防止在3D-HEVC中使用的DMM预测模式的特征和3D-HEVC中使用的变换树细分的特征彼此干扰。
    • 5. 发明公开
    • SIMPLIFIED SUB-PREDICTION UNIT (SUB-PU) MOTION PARAMETER INHERITENCE (MPI)
    • 简化的子预测单元(SUB-PU)运动参数遗留(MPI)
    • EP3114839A1
    • 2017-01-11
    • EP14884610.8
    • 2014-03-07
    • Qualcomm Incorporated
    • 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 2N×2N.
    • 本发明描述用于简化三维(3D)视频译码过程(例如3D-HEVC)中的深度帧间模式译码的技术。 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:如果共同定位的纹理块的运动参数与当前深度PU的运动参数一致,则确定子PU运动参数继承(MPI)运动参数候选不可用于包括在针对当前深度PU的运动参数候选列表中 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2N×2N时导出用于包括在当前深度PU的运动参数候选列表中的子PU MPI候选。