公开(公告)号：US20160065964A1

公开(公告)日：2016-03-03

申请号：US14785011

申请日：2014-06-24

申请人： Kai ZHANG ,  Yi-wen CHEN ,  Ji-an-Liang LIN ,  Jicheng AN ,  Xianguo ZHANG

发明人： Kai ZHANG ,  Yi-Wen CHEN ,  Jian-Liang LIN ,  Jicheng AN ,  Xianguo ZHANG

IPC分类号： H04N19/13 ,  H04N19/96 ,  H04N19/597 ,  H04N19/157 ,  H04N19/176

CPC分类号： H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/597 ,  H04N19/91 ,  H04N19/96

摘要： A method for reducing the storage requirement or complexity of context-based coding in three-dimensional or multi-view video encoding and decoding is disclosed. The system selects the context based on selected information associated with one or more neighboring blocks of the current block conditionally depending on whether the one or more neighboring blocks are available. The syntax element is then encoded or decoded using context-based coding according to the context selection. The syntax element to be coded may correspond to an IC (illumination compensation) flag or an ARP (advanced residual prediction) flag. In another example, one or more syntax elements for coding a current depth block using DMM (Depth Map Model) are encoded or decoded using context-based coding, where the context-based coding selects a by-pass mode for at least one selected syntax element.

摘要翻译： 公开了一种用于减少三维或多视图视频编码和解码中的基于上下文的编码的存储要求或复杂性的方法。 该系统有条件地根据一个或多个相邻块是否可用，基于与当前块的一个或多个相邻块相关联的所选择的信息来选择上下文。 然后根据上下文选择使用基于上下文的编码对语法元素进行编码或解码。 要编码的语法元素可以对应于IC（照明补偿）标志或ARP（高级残差预测）标志。 在另一示例中，使用DMM（深度图模型）对当前深度块进行编码的一个或多个语法元素使用基于上下文的编码进行编码或解码，其中基于上下文的编码为至少一个选择的语法选择旁路模式 元件。

公开(公告)号：US20170019682A1

公开(公告)日：2017-01-19

申请号：US15123882

申请日：2015-03-17

申请人： Kai ZHANG ,  Jicheng AN ,  Xianguo ZHANG ,  Han HUANG

发明人： Kai ZHANG ,  Jicheng AN ,  Xianguo ZHANG ,  Han HUANG

IPC分类号： H04N19/597 ,  H04N19/503 ,  H04N19/34 ,  H04N19/70

CPC分类号： H04N19/597 ,  H04N19/34 ,  H04N19/503 ,  H04N19/70

摘要： A method and apparatus for depth lookup table (DLT) signaling in a three-dimensional and multi-view coding system are disclosed. According to the present invention, if the pictures contain only texture data, no DLT information is incorporated in the picture parameter set (PPS) corresponding to the pictures. On the other hand, if the pictures contain depth data, the DLT associated with the pictures is determined. If a previous DLT required for predicting the DLT exists, the DLT will be predicted based on the previous DLT. Syntax related to the DLT is included in the PPS. Furthermore, first bit-depth information related to first depth samples of the DLT is also included in the PPS and the first bit-depth information is consistent with second bit-depth information signaled in a sequence level data for second depth samples of a sequence containing the pictures.

摘要翻译： 公开了一种用于三维和多视图编码系统中的深度查找表（DLT）信令的方法和装置。 根据本发明，如果图像仅包含纹理数据，则不对应于图像的图像参数集（PPS）中并入DLT信息。 另一方面，如果图像包含深度数据，则确定与图像相关联的DLT。 如果存在用于预测DLT所需的先前DLT，则将基于先前的DLT预测DLT。 与DLT相关的语法包含在PPS中。 此外，与DLT的第一深度样本相关的第一位深度信息也包括在PPS中，并且第一位深度信息与第二深度信息一致，该第二位深度信息与序列级数据中信号的第二位深度信息一致， 图片。

公开(公告)号：US20160165209A1

公开(公告)日：2016-06-09

申请号：US14905705

申请日：2015-06-18

申请人： Han HUANG ,  Xianguo ZHANG ,  Jicheng AN ,  Jian-Liang LIN ,  Kai ZHANG

发明人： Han HUANG ,  Xianguo ZHANG ,  Jicheng AN ,  Jian-Liang LIN ,  Kai ZHANG

IPC分类号： H04N13/00 ,  H04N19/44 ,  H04N19/51 ,  H04N19/597 ,  H04N19/70 ,  H04N19/30 ,  H04N19/187 ,  H04N19/176 ,  H04N13/04 ,  H04N19/136

CPC分类号： H04N13/161 ,  H04N13/128 ,  H04N13/15 ,  H04N19/136 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/44 ,  H04N19/51 ,  H04N19/597 ,  H04N19/70 ,  H04N2013/0077 ,  H04N2013/0081

摘要： A method of sub-PU (prediction unit) syntax element signaling for a three-dimensional or multi-view video coding system is disclosed. A first syntax element associated with a texture sub-PU size is transmitted only for texture video data and a second syntax element associated with a depth sub-PU size is transmitted only for depth video data. The first syntax element associated with the texture sub-PU size is used to derive an IVMP (inter-view motion prediction) prediction candidate used for a texture block. The second syntax element associated with the depth sub-PU size is used to a MPI (motion parameter inheritance) prediction candidate for a depth block.

摘要翻译： 公开了一种用于三维或多视点视频编码系统的子PU（预测单元）语法元素信令的方法。 仅针对纹理视频数据传送与纹理子PU尺寸相关联的第一语法元素，并且仅针对深度视频数据传送与深度子PU尺寸相关联的第二语法元素。 与纹理子PU尺寸相关联的第一语法元素用于导出用于纹理块的IVMP（视角间运动预测）预测候选。 与深度子PU尺寸相关联的第二语法元素用于深度块的MPI（运动参数继承）预测候选。

公开(公告)号：US20170171558A1

公开(公告)日：2017-06-15

申请号：US15323809

申请日：2015-07-15

申请人： Han HUANG ,  Jicheng AN ,  Kai ZHANG ,  Xianguo ZHANG

发明人： Han HUANG ,  Jicheng AN ,  Kai ZHANG ,  Xianguo ZHANG

IPC分类号： H04N19/577 ,  H04N19/517

CPC分类号： H04N19/577 ,  H04N19/517 ,  H04N19/52 ,  H04N19/70

摘要： A method and apparatus of deriving a temporal derived motion vector in a second direction based on a given motion vector in a first direction for motion vector prediction are disclosed. According to the present invention, a given motion vector for a current block is determined, where the given motion vector points from the current block in a first direction. A reference motion vector associated with a first reference block in a first reference frame is identified. Then, based on the reference motion vector and the given motion vector, a temporal derived motion vector is derived. The temporal derived motion vector points from the current block to a second reference block in a second reference frame in a second direction different from the first direction. The temporal derived motion vector is then used as one predictor for encoding or decoding of the motion vector of the current block.

公开(公告)号：US20160182883A1

公开(公告)日：2016-06-23

申请号：US14891129

申请日：2014-07-02

申请人： Kai ZHANG ,  Jicheng AN ,  Jian-Liang LIN ,  Xianguo ZHANG

发明人： Kai ZHANG ,  Jicheng AN ,  Jian-Liang LIN ,  Xianguo ZHANG

IPC分类号： H04N13/00 ,  H04N19/44 ,  H04N19/52 ,  H04N19/136 ,  H04N19/176

CPC分类号： H04N13/161 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/52 ,  H04N19/597 ,  H04N2013/0081

摘要： A method and apparatus for three-dimensional video encoding and decoding using disparity derived depth prediction are disclosed. Embodiments of the present invention determine a disparity vector related to a collocated texture block in the dependent view and generate converted depth samples from the disparity vector. The generated converted depth samples are used as a predictor or Merge candidate for the current depth block. The Merge candidate corresponding to the converted depth samples can be placed in the merging candidate list at a location before TMVP (temporal motion vector predictor) merging candidate. The converted depth samples can be generated from the disparity vector according to a function of the disparity vector. Information associated with the function can be signaled explicitly to a decoder or derived implicitly by the decoder. One aspect of the present invention addresses simplified disparity to depth conversion, specifically division-free disparity-to-depth conversion.

摘要翻译： 公开了一种使用视差衍生深度预测进行三维视频编码和解码的方法和装置。 本发明的实施例确定从属视图中与并置纹理块有关的视差矢量，并从视差矢量生成转换的深度样本。 生成的转换深度样本用作当前深度块的预测或合并候选。 对应于转换的深度样本的合并候选可以在TMVP（时间运动矢量预测器）合并候选之前的位置放置在合并候选列表中。 可以根据视差向量的函数从视差向量生成转换的深度样本。 与该功能相关联的信息可以明确地发送给解码器或由解码器隐式地导出。 本发明的一个方面解决了对深度转换的简化视差，特别是无分辨率的视差到深度转换。

公开(公告)号：US20150341664A1

公开(公告)日：2015-11-26

申请号：US14759042

申请日：2013-12-13

申请人： Yi-Wen CHEN ,  Jian-Liang LIN ,  Jicheng AN ,  Kai ZHANG ,  ZHANG, Na

发明人： Na ZHANG ,  Yi-Wen CHEN ,  Jian-Liang LIN ,  Jicheng AN ,  Kai ZHANG

IPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176

CPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176

摘要： A derived disparity vector is determined based on spatial neighboring blocks and temporal neighboring blocks of the current block. The temporal neighboring blocks are searched according to a temporal search order and the temporal search order is the same for all dependent views. Any temporal neighboring block from a CTU below the current CTU row may be omitted in the temporal search order. The derived DV can also be used for predicting a DV of a DCP (disparity-compensated prediction) block for the current block in the AMVP mode, the Skip mode or the Merge mode. The temporal neighboring blocks may correspond to a temporal CT block and a temporal BR block. In one embodiment, the temporal search order checks the temporal BR block first and the temporal CT block next.

摘要翻译： 基于当前块的空间相邻块和时间相邻块来确定派生视差向量。 根据时间搜索顺序搜索时间相邻块，并且所有相关视图的时间搜索顺序是相同的。 可以在时间搜索顺序中省略来自当前CTU行下方的CTU的任何临时相邻块。 导出的DV还可以用于在AMVP模式，跳过模式或合并模式中预测当前块的DCP（视差补偿预测）块的DV。 时间相邻块可以对应于时间CT块和时间BR块。 在一个实施例中，时间搜索顺序首先检查时间BR块，然后检查时间CT块。

公开(公告)号：US20160021393A1

公开(公告)日：2016-01-21

申请号：US14762508

申请日：2014-04-03

申请人： Kai ZHANG ,  Yi-Wen CHEN ,  Jicheng AN ,  Jian-Liang LIN

发明人： Kai Zhang ,  Yi-Wen CHEN ,  Jicheng AN ,  Jian-Liang LIN

IPC分类号： H04N19/597 ,  H04N19/105 ,  H04N13/00 ,  H04N19/503

CPC分类号： H04N19/597 ,  H04N13/10 ,  H04N19/105 ,  H04N19/50 ,  H04N19/503

摘要： A method of illumination compensation for three-dimensional or multi-view encoding and decoding. The method incorporates an illumination compensation flag only if the illumination compensation is enabled and the current coding unit is processed by one 2N×2N prediction unit. The illumination compensation is applied to the current coding unit according to the illumination compensation flag. The illumination compensation flag is incorporated when the current coding unit is coded in Merge mode without checking whether a current reference picture is an inter-view reference picture.

摘要翻译： 一种用于三维或多视图编码和解码的照明补偿方法。 该方法仅在照明补偿被使能并且当前编码单元被一个2N×2N个预测单元处理时才包含照明补偿标志。 根据照明补偿标志将照明补偿应用于当前编码单元。 当当前编码单元以合并模式编码而不检查当前参考图片是否是视频间参考图片时，结合照明补偿标志。

公开(公告)号：US20150341663A1

公开(公告)日：2015-11-26

申请号：US14442951

申请日：2013-11-14

申请人： Kai ZHANG ,  Jicheng AN ,  Jian-Liang LIN

发明人： Kai ZHANG ,  Jicheng AN ,  Jian-Liang LIN

IPC分类号： H04N19/597 ,  H04N19/174 ,  H04N19/14 ,  H04N19/172 ,  H04N19/52 ,  H04N19/176

CPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/14 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

摘要： A method and apparatus using pseudo residues to predict current residues for three-dimensional or multi-view video coding are disclosed. The method first receives input data associated with a current block of a current picture in a current dependent view and determines an inter-view reference block in a first inter-view reference picture in a reference view according to a DV (disparity vector), where the current picture and the first inter-view reference picture correspond to same time instance. Pseudo residues are then determined and used for encoding or decoding of the current block, where the pseudo residues correspond to differences between a corresponding region in an inter-time reference picture in the current dependent view and a pseudo reference region in a pseudo reference picture in the reference view, and where the inter-time reference picture and the pseudo reference picture correspond to same time instance.

摘要翻译： 公开了一种使用伪残差来预测三维或多视点视频编码的当前残差的方法和装置。 该方法首先在当前依赖视图中接收与当前图像的当前块相关联的输入数据，并根据DV（视差向量）在参考视图中确定第一视景间参考图片中的视角间参考块，其中 当前图片和第一视景间参考图片对应于相同的时间实例。 然后确定伪残差并用于当前块的编码或解码，其中伪残差对应于当前依赖视图中的时间间参考图像中的对应区域与伪参考图像中的伪参考区域之间的差异 参考视图，以及时间间参考图片和伪参考图片对应于相同的时间实例。

公开(公告)号：US20190068977A1

公开(公告)日：2019-02-28

申请号：US16078193

申请日：2017-02-21

申请人： Kai ZHANG ,  Jicheng AN ,  Han HUANG

发明人： Kai ZHANG ,  Jicheng AN ,  Han HUANG

IPC分类号： H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/186

CPC分类号： H04N19/159 ,  H04N19/11 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/186 ,  H04N19/61

摘要： A method and apparatus of Inter/Intra prediction for a chroma component performed by a video encoder or video decoder are disclosed. According to this method, a current chroma prediction block (e.g. a prediction unit, PU) is divided into multiple chroma prediction sub-blocks (e.g. sub-PUs). A corresponding luma prediction block is identified for each chroma prediction sub-block. A chroma prediction mode for each chroma prediction sub-block is determined from a luma prediction mode associated with the corresponding luma prediction block. A local chroma predictor for the current chroma prediction block is generated by applying a prediction process to the multiple chroma prediction sub-blocks using respective chroma prediction modes. In other words, the prediction process is applied at the chroma prediction sub-block level. After the local chroma predictor is derived, a coding block associated with the current chroma prediction block is encoded or decoded using information comprising the local chroma predictor.

公开(公告)号：US20180352226A1

公开(公告)日：2018-12-06

申请号：US15777417

申请日：2016-10-18

申请人： Jicheng AN ,  Kai ZHANG ,  Han HUANG

发明人： Jicheng AN ,  Kai ZHANG ,  Han HUANG

IPC分类号： H04N19/119 ,  H04N19/107 ,  H04N19/12

CPC分类号： H04N19/46 ,  H04N19/119 ,  H04N19/12 ,  H04N19/176

摘要： A method and apparatus of block partition for prediction process or transform process in video coding are disclosed. Whether a smallest allowed block size smaller than 4 is allowed is determined and information related to the decision is signalled in SPS (sequence parameter set), PPS (picture parameter set) or slice header regarding. If the smallest allowed block size smaller than 4 is allowed, the current block is partitioned into one or more sub-blocks using a block size set including the smallest allowed block size. The smallest allowed block size is 2 in one embodiment. According to another method, a threshold area is determined and transform skip mode is applied to the current block if the current block area of the current block is equal to or smaller than the threshold area.