公开(公告)号：US20170195687A1

公开(公告)日：2017-07-06

申请号：US15468490

申请日：2017-03-24

Applicant: HFI Innovation Inc.

Inventor： Tzu-Der CHUANG ,  Jian-Liang LIN ,  Ching-Yeh CHEN ,  Yi-Wen CHEN ,  Yu-Wen HUANG

IPC: H04N19/52 ,  H04N19/91 ,  H04N19/105

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/42 ,  H04N19/513 ,  H04N19/567 ,  H04N19/58 ,  H04N19/91

Abstract: A method and apparatus for deriving a scaled motion vector (MV) for a current block based on a candidate MV associated with a candidate block determines a first picture distance between a current picture corresponding to the current block and a target reference picture pointed to by a current motion vector of the current block, and then determines a second picture distance between a candidate picture corresponding to the candidate block and a candidate reference picture pointed to by the candidate MV of the candidate block. The method further determines a pre-scaled distance division having a first value related to dividing a pre-scaling factor by the second picture distance, and determines an intermediate scaling factor by right-shifting a multiplication result associated with the first picture distance and the pre-scaled distance division by q bits, wherein q is a positive integer.

公开(公告)号：US20170019665A1

公开(公告)日：2017-01-19

申请号：US15123825

申请日：2015-03-11

Applicant: HFI Innovation Inc.

Inventor： Yi-Wen CHEN ,  Jian-Liang LIN ,  Yu-Chen SUN

IPC: H04N19/105 ,  H04N19/597 ,  H04N19/96

CPC classification number: H04N19/105 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/597 ,  H04N19/96

Abstract: A method and apparatus of video coding including a Single Sample Mode are disclosed. Embodiments according to the present invention construct a sample candidate list comprising one or more sample candidates from previously reconstructed neighboring samples of the current depth block or the current texture block. A sample candidate is selected from the sample candidate list and the selected sample candidate is used as reconstructed samples for the current depth block or the current texture block. A sample candidate index indicating the selected sample candidate can be signaled at the encoder side or parsed at the decoder side. Alternatively, the sample candidate index can be derived implicitly.

Abstract translation: 公开了包括单采样模式的视频编码方法和装置。 根据本发明的实施例构造包括来自当前深度块或当前纹理块的先前重建的相邻样本的一个或多个样本候选的样本候选列表。 从样本候选列表中选择样本候选，并且将所选择的候选样本用作当前深度块或当前纹理块的重建样本。 指示所选样本候选的样本候选索引可以在编码器侧发信号通知或在解码器一侧解析。 或者，可以隐式地导出样本候选索引。

公开(公告)号：US20190068948A1

公开(公告)日：2019-02-28

申请号：US16171149

申请日：2018-10-25

Applicant: HFI Innovation Inc.

Inventor： Jicheng AN ,  Kai ZHANG ,  Jian-Liang LIN

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

CPC classification number: H04N13/161 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/597

Abstract: 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：US20180115764A1

公开(公告)日：2018-04-26

申请号：US15849207

申请日：2017-12-20

Applicant: HFI INNOVATION INC.

Inventor： Jian-Liang LIN ,  Yi-Wen CHEN ,  Yu-Pao TSAI ,  Yu-Wen HUANG ,  Shaw-Min LEI

IPC: H04N13/00 ,  H04N19/593 ,  H04N19/513 ,  H04N19/70 ,  H04N19/597 ,  H04N19/58 ,  H04N19/52

CPC classification number: H04N13/161 ,  H04N19/513 ,  H04N19/52 ,  H04N19/58 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70

Abstract: A method and apparatus for deriving MV/MVP (motion vector or motion vector predictor) or DV/DVP (disparity vector or disparity vector predictor) associated Skip mode, Merge mode or Inter mode for a block of a current picture in three-dimensional (3D) video coding are disclosed. The 3D video coding may use temporal prediction and inter-view prediction to exploit temporal and inter-view correlation. MV/DV prediction is applied to reduce bitrate associated with MV/DV coding. The MV/MVP or DV/DVP for a block is derived from spatial candidates, temporal candidates and inter-view candidates. For the inter-view candidate, the position of the inter-view co-located block can be located using a global disparity vector (GDV) or warping the current block onto the co-located picture according to the depth information. The candidate can also be derived as the vector corresponding to warping the current block onto the co-located picture according to the depth information.

公开(公告)号：US20180249146A1

公开(公告)日：2018-08-30

申请号：US15967694

申请日：2018-05-01

Applicant: HFI Innovation Inc.

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

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

CPC classification number: H04N13/161 ,  H04N13/106 ,  H04N13/15 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/597

Abstract: 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

Applicant: HFI Innovation Inc.

Inventor： Kai ZHANG ,  Jicheng AN ,  Jian-Liang LIN

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

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/14 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

Abstract: 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：US20170041623A1

公开(公告)日：2017-02-09

申请号：US15299939

申请日：2016-10-21

Applicant: HFI Innovation Inc.

Inventor： Jian-Liang LIN ,  Yi-Wen CHEN

IPC: H04N19/176 ,  H04N19/593

CPC classification number: H04N19/176 ,  H04N19/11 ,  H04N19/593 ,  H04N19/597

Abstract: A method and apparatus of Intra coding for a block in a coding system. The method includes receiving input data associated with a current block; determining a current Intra prediction mode for the current block; deriving prediction samples for the current block based on reconstructed neighboring samples according to the current Intra prediction mode, wherein a predicting value representing a single prediction value for the current block is determined based on at least two corner samples corresponding to the current block according to the current Intra prediction mode; and applying encoding or decoding to the input data associated with the current block using the prediction samples derived for the current block.

Abstract translation: 一种对编码系统中的块进行内编码的方法和装置。 该方法包括接收与当前块相关联的输入数据; 确定当前块的当前帧内预测模式; 根据当前帧内预测模式，基于重构的相邻样本导出当前块的预测样本，其中基于根据当前块对应于当前块的至少两个角样本来确定表示当前块的单个预测值的预测值 当前帧内预测模式; 以及使用为当前块导出的预测样本将编码或解码应用于与当前块相关联的输入数据。

公开(公告)号：US20170013276A1

公开(公告)日：2017-01-12

申请号：US15121142

申请日：2015-03-17

Applicant: HFI Innovation Inc.

Inventor： Yi-Wen CHEN ,  Kai ZHANG ,  Jian-Liang LIN ,  Yu-Wen HUANG

IPC: H04N19/597 ,  H04N19/46 ,  H04N19/105 ,  H04N19/174 ,  H04N19/176

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/136 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46

Abstract: A method and apparatus for low-latency illumination compensation in a three-dimensional (3D) and multi-view coding system are disclosed. According to the present invention, the encoder determines whether to enable or disable the illumination compensation for the current picture or slice based on a condition related to statistic associated with a selected reference picture or slice respectively, or related to high-level coding information associated with the current picture or slice respectively. The high-level coding information associated with the current picture or slice excludes any information related to pixel values of the current picture or slice respectively. The illumination compensation is them applied according to the decision made by the encoder. A similar low-latency method is also applied for depth lookup table (DLT) based coding.

Abstract translation: 公开了一种用于三维（3D）和多视图编码系统中的低延迟照明补偿的方法和装置。 根据本发明，编码器基于与所选择的参考图像或切片相关联的统计量相关的条件，或者与与所选择的参考图像相关联的高级编码信息相关联地确定是否启用或禁用当前图片或切片的照明补偿 分别是当前图片或片。 与当前图片或片段相关联的高级编码信息分别排除与当前图片或片段的像素值相关的任何信息。 照明补偿是根据编码器做出的决定而应用的。 类似的低延迟方法也被应用于基于深度查找表（DLT）的编码。

公开(公告)号：US20160366441A1

公开(公告)日：2016-12-15

申请号：US15114116

申请日：2015-01-27

Applicant: HFI INNOVATION INC.

Inventor： Jicheng AN ,  Kai ZHANG ,  Jian-Liang LIN

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

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/436 ,  H04N19/52

Abstract: 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.

Abstract translation: 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

Applicant: HFI INNOVATION INC.

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

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

Abstract: 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.

Abstract translation: 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。