公开(公告)号：US20180249146A1

公开(公告)日：2018-08-30

申请号：US15967694

申请日：2018-05-01

申请人： HFI Innovation Inc.

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

IPC分类号： H04N13/161 ,  H04N19/136 ,  H04N19/46 ,  H04N19/176 ,  H04N19/597 ,  H04N13/106 ,  H04N19/119 ,  H04N13/15

CPC分类号： H04N13/161 ,  H04N13/106 ,  H04N13/15 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/597

摘要： A method of simplified depth-based block partitioning (DBBP) for three-dimensional and multi-view video coding is disclosed. In one embodiment, the method receives input data associated with a current texture block in a dependent view, and determines a corresponding depth block or a reference texture block in a reference view for the current texture block. Then, the method derives a representative value based on the corresponding depth block or the reference texture block, and generates a current segmentation mask from the corresponding depth block or the reference texture block. Then, the method selects a current block partition from block partition candidates, wherein the representative value is used for generating the segmentation mask or selecting the current block partition or both, and applies DBBP coding to the current texture block according to the current segmentation mask generated and the current block partition selected.

公开(公告)号：US20170214933A1

公开(公告)日：2017-07-27

申请号：US15480671

申请日：2017-04-06

申请人： HFI Innovation Inc.

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

IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/597

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

摘要： A method for three-dimensional or multi-view video coding receives input data associated with a current block of a current picture in a current dependent view, wherein the current block is inter-time coded based on an inter-time reference block located by a motion vector (MV), determines estimated DV (disparity vector) candidates from neighboring DVs, applies an evaluation function to the estimated DV candidates to obtain evaluation results for the estimated DV candidates, and selects a final estimated DV. The method then determines an inter-view reference region in an inter-view reference picture, determines first pseudo residues, wherein the first pseudo residues correspond to first differences between the inter-view reference region and a pseudo reference region in a pseudo reference picture located by the MV, and applies encoding or decoding to the input data associated with residues of the current block utilizing the first pseudo residues.

公开(公告)号：US20160366441A1

公开(公告)日：2016-12-15

申请号：US15114116

申请日：2015-01-27

申请人： HFI INNOVATION INC.

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

IPC分类号： H04N19/597 ,  H04N19/52 ,  H04N19/176 ,  H04N19/105 ,  H04N19/139

CPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/436 ,  H04N19/52

摘要： A method and apparatus for coding a depth block in three-dimensional video coding are disclosed. Embodiments of the present invention divide a depth block into depth sub-blocks and determine default motion parameters. For each depth sub-block, the motion parameters of a co-located texture block covering the center sample of the depth sub-block are determined. If the motion parameters are available, the motion parameters are assigned as inherited motion parameters for the depth sub-block. If the motion parameters are unavailable, the default motion parameters are assigned as inherited motion parameters for the depth sub-block. The depth sub-block is then encoded or decoded using the inherited motion parameters or a motion candidate selected from a motion candidate set including the inherited motion parameters. The depth block may correspond to a depth prediction unit (PU) and the depth sub-block corresponds to a depth sub-PU.

摘要翻译： 公开了一种用于对三维视频编码中的深度块进行编码的方法和装置。 本发明的实施例将深度​​块划分为深度子块并确定默认运动参数。 对于每个深度子块，确定覆盖深度子块的中心样本的同位置纹理块的运动参数。 如果运动参数可用，运动参数被分配为深度子块的继承运动参数。 如果运动参数不可用，则将默认运动参数分配为深度子块的继承运动参数。 然后使用继承的运动参数或从包括继承运动参数的运动候选集中选择的运动候选来对深度子块进行编码或解码。 深度块可以对应于深度预测单元（PU），深度子块对应于深度子PU。

公开(公告)号：US20160330481A1

公开(公告)日：2016-11-10

申请号：US15108878

申请日：2014-12-31

申请人： HFI INNOVATION INC.

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

IPC分类号： H04N19/597 ,  H04N19/117 ,  H04N19/182 ,  H04N19/96 ,  H04N19/172 ,  H04N19/159 ,  H04N19/176

摘要： A method and apparatus for Intra prediction coding in multi-view video coding, three-dimensional video coding, or screen content video coding are disclosed. A first filtering-disable-flag associated with a high-level video data is determined to indicate whether to disable at least one filter from a filter group. If the first filtering-disable-flag is asserted, one or more selected Intra prediction modes from an Intra prediction mode group is determined, and at least one filter from the filter group for the current block is skipped if the current Intra prediction mode of the current block belongs to the selected Intra prediction modes. The system may further determine a second filtering-disable-flag associated with a low-level video data corresponding to a current block level or a higher level than the current block level to disable said at least one filter from a filter group for the low-level video data.

摘要翻译： 公开了一种用于多视点视频编码，三维视频编码或屏幕内容视频编码中的帧内预测编码的方法和装置。 确定与高级视频数据相关联的第一滤波禁用标志以指示是否从滤波器组禁用至少一个滤波器。 如果第一滤波禁止标志被断言，则确定来自帧内预测模式组的一个或多个所选择的帧内预测模式，并且如果当前帧预测模式的当前帧内预测模式被跳过，则跳过来自当前块的滤波器组的至少一个滤波器 当前块属于所选择的帧内预测模式。 该系统还可以确定与当前块级别相对应的低级视频数据相关联的第二过滤禁用标志或比当前块级别更高的级别，以使所述至少一个过滤器从用于低级别 级视频数据。

公开(公告)号：US20190182508A1

公开(公告)日：2019-06-13

申请号：US15895314

申请日：2018-02-13

申请人： HFI Innovation Inc.

发明人： Liang ZHAO ,  Jicheng AN ,  Xin ZHAO ,  Xun GUO

IPC分类号： H04N19/60 ,  H04N19/186 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46 ,  H04N19/96

CPC分类号： H04N19/60 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/96

摘要： A method includes receiving the video bitstream from a media or a processor, recovering a first coded block flag (cbf) from the video bitstream based on a context-based adaptive binary arithmetic coding (CABAC) decoding process according to a first context formation, wherein the first cbf is associated with a first transform unit (TU) of a first color component, and the first cbf indicates whether the first TU of the first color component has at least one non-zero transform coefficient, and recovering a second cbf from the video bitstream based on the CABAC decoding process according to a second context formation, wherein the second cbf is associated with a second TU of a second color component, and the second cbf indicates whether the second TU of the second color component has at least one non-zero transform coefficient.

公开(公告)号：US20190068948A1

公开(公告)日：2019-02-28

申请号：US16171149

申请日：2018-10-25

申请人： HFI Innovation Inc.

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

IPC分类号： H04N13/161 ,  H04N19/597 ,  H04N19/52 ,  H04N19/44 ,  H04N19/176 ,  H04N19/139

CPC分类号： H04N13/161 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/597

摘要： A method for a three-dimensional encoding or decoding system incorporating sub-block based inter-view motion prediction is disclosed. The system utilizes motion or disparity parameters associated with reference sub-blocks in a reference picture of a reference view corresponding to the texture sub-PCU split from a current texture PU (prediction unit) to predict the motion or disparity parameters of the current texture PU. Candidate motion or disparity parameters for the current texture PU may comprise candidate motion or disparity parameters derived for all texture sub-PUs from splitting the current texture PU. The candidate motion or disparity parameters for the current texture PU can be used as a sub-block-based inter-view Merge candidate for the current texture PU in Merge mode. The sub-block-based inter-view Merge candidate can be inserted into a first position of a candidate list.

公开(公告)号：US20170295370A1

公开(公告)日：2017-10-12

申请号：US15514129

申请日：2015-09-30

申请人： HFI Innovation Inc.

发明人： Xiaozhong XU ,  Kai ZHANG ,  Shan LIU ,  Jicheng AN ,  Xianguo ZHANG

IPC分类号： H04N19/117 ,  H04N19/139 ,  H04N19/86 ,  H04N19/52 ,  H04N19/523 ,  H04N19/124 ,  H04N19/176

摘要： A method of MVP (motion vector prediction) for video coding with adaptive motion vector resolution is disclosed. According to the present invention, the MVP coding is applied to the current MV or the current MV is stored depending on the current MV resolution, the reference MV resolution, or both the current MV resolution and the reference MV resolution. In one embodiment, when the current MV resolution corresponds to integer pixel resolution, MVP coding is then applied to the current MV using a modified temporal MV as a motion vector predictor for the current MV, where the modified temporal MV is generated by right-shifting the temporal MV. In another embodiment, when the current MV resolution corresponds to integer pixel resolution, the current MV is left-shifted before it is stored in a memory.

公开(公告)号：US20190191180A1

公开(公告)日：2019-06-20

申请号：US16282773

申请日：2019-02-22

申请人： HFI INNOVATION INC.

发明人： Jicheng AN ,  Kai Zhang ,  Jian-Liang Lin

IPC分类号： H04N19/597 ,  H04N19/176 ,  H04N19/139 ,  H04N19/52 ,  H04N19/436 ,  H04N19/105

CPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/436 ,  H04N19/52

摘要： A method and apparatus for coding a depth block in three-dimensional video coding are disclosed. Embodiments of the present invention divide a depth block into depth sub-blocks and determine default motion parameters. For each depth sub-block, the motion parameters of a co-located texture block covering the center sample of the depth sub-block are determined. If the motion parameters are available, the motion parameters are assigned as inherited motion parameters for the depth sub-block. If the motion parameters are unavailable, the default motion parameters are assigned as inherited motion parameters for the depth sub-block. The depth sub-block is then encoded or decoded using the inherited motion parameters or a motion candidate selected from a motion candidate set including the inherited motion parameters. The depth block may correspond to a depth prediction unit (PU) and the depth sub-block corresponds to a depth sub-PU.

公开(公告)号：US20180014029A1

公开(公告)日：2018-01-11

申请号：US15696260

申请日：2017-09-06

申请人： HFI Innovation Inc.

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

IPC分类号： H04N19/597 ,  H04N19/34 ,  H04N19/503 ,  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. The method identifies one or more pictures to be processed. If one or more pictures contain depth data, then the method determines the DLT associated with said one or more pictures, applies predictive coding to the DLT based on the previous DLT, includes syntax related to the DLT in the PPS, and includes first bit-depth information related to first depth samples of the DLT in the PPS. The first bit-depth information is consistent with second bit depth information signaled in a sequence level. The method further signals the PPS in a video bitstream for a sequence including said one or more pictures. A circuit is also provided that embodies circuitry configured to carry out the operations specified above.

公开(公告)号：US20160323581A1

公开(公告)日：2016-11-03

申请号：US15107909

申请日：2014-12-16

申请人： HFI Innovation Inc.

发明人： Xianguo ZHANG ,  Kai ZHANG ,  Jicheng AN

IPC分类号： H04N19/13 ,  H04N19/196 ,  H04N19/159 ,  H04N19/186

摘要： A method for inter-color residual prediction using an improved scaling parameter coding is disclosed. In one embodiment, a scaling parameter is used for inter-color residual prediction between a first color component and a second color component. The scaling parameter is coded using context-based coding having the same number of context models as the longest binary code for the absolute values of the scaling parameter. For example, when the first scaling parameter is selected from a group consisting of 8, 4, 2, 1, 0, −1, −2 −4 and −8, the absolute values of the scaling parameter can be represented by binary codes with the longest binary code having 4 bits. The context-based coding for the absolute scaling parameter also uses 4 context models. In a second embodiment, the scaling parameter is coded using binary codes by assigning a shorter binary code to a larger non-zero scaling parameter.

摘要翻译： 公开了一种使用改进的缩放参数编码进行颜色间残差预测的方法。 在一个实施例中，缩放参数用于第一颜色分量和第二颜色分量之间的颜色间残差预测。 使用与用于缩放参数的绝对值的最长二进制码相同数量的上下文模型的基于上下文的编码来对缩放参数进行编码。 例如，当从由8,4,2,1,0，-1，-2 -4和-8组成的组中选择第一缩放参数时，缩放参数的绝对值可以用二进制代码表示， 最长的二进制代码具有4位。 绝对缩放参数的基于上下文的编码也使用4个上下文模型。 在第二实施例中，通过将更短的二进制码分配给更大的非零比例参数，使用二进制码对缩放参数进行编码。