公开(公告)号：US10075690B2

公开(公告)日：2018-09-11

申请号：US14916462

申请日：2014-10-17

申请人： MediaTek Inc.

发明人： Jian-Liang Lin ,  Yi-Wen Chen

IPC分类号： H04N19/52 ,  H04N13/00 ,  H04N19/597 ,  H04N19/176 ,  G06K9/62

CPC分类号： H04N13/161 ,  G06K9/6201 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

摘要： A method for three-dimensional video coding using aligned motion parameter derivation for motion information prediction and inheritance is disclosed. Embodiments according to the present invention utilize motion parameters associated with a corresponding block for motion information prediction or inheritance. The aligned motion parameters may be derived by searching each current reference picture list of the current block to find a matched reference picture having a same POC (Picture Order Count) or a same view index as that of the reference picture pointed by the MV of the corresponding block. The aligned motion parameters may also be derived by searching each current reference picture list to check whether the reference picture index of the reference picture in the reference view to be inherited exceeds a maximum reference picture index of each current reference picture list of the current block.

公开(公告)号：US20180192024A1

公开(公告)日：2018-07-05

申请号：US15860671

申请日：2018-01-03

申请人： MEDIATEK INC.

发明人： Jian-Liang Lin ,  Peng Wang ,  Hung-Chih Lin ,  Shen-Kai Chang

IPC分类号： H04N13/00 ,  G06T3/00

CPC分类号： H04N13/161 ,  G06T3/0087 ,  H04N13/139 ,  H04N19/00 ,  H04N19/59 ,  H04N19/597

摘要： A video processing method includes receiving an omnidirectional content corresponding to a sphere, generating a projection-based frame according to the omnidirectional content and a pyramid projection layout, and encoding, by a video encoder, the projection-based frame to generate a part of a bitstream. The projection-based frame has a 360-degree content represented by a base projection face and a plurality of lateral projection faces packed in the pyramid projection layout. The base projection face and the lateral projection faces are obtained according to at least projection relationship between a pyramid and the sphere.

公开(公告)号：US09998755B2

公开(公告)日：2018-06-12

申请号：US14433348

申请日：2013-09-30

申请人： MediaTek Inc.

发明人： Jian-Liang Lin ,  Yi-Wen Chen

IPC分类号： H04N19/55 ,  H04N19/176 ,  H04N19/174 ,  H04N19/597 ,  H04N13/00 ,  H04N19/105 ,  H04N19/52 ,  H04N19/159

CPC分类号： H04N19/55 ,  H04N13/161 ,  H04N19/105 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

摘要： A method and apparatus to determine motion information for a current depth region depending on the motion information associated with a co-located texture region are provided for three-dimensional video. The motion information for the current depth region is set to pre-defined motion information or derived motion information if the co-located texture region of the texture picture or any texture sub-region in the co-located texture region is Intra-coded or has no valid motion information. The pre-defined motion information may correspond to motion vector (0,0), reference index 0, and a prediction type as indicated by a slice type. In one embodiment, the motion information for the current depth region is determined according to a subset of 8×8 texture sub-regions for a system with asymmetric resolution and the texture region corresponding to a macroblock.

公开(公告)号：US09967586B2

公开(公告)日：2018-05-08

申请号：US14655951

申请日：2013-12-20

申请人： MediaTek Inc.

发明人： Jian-Liang Lin ,  Yi-Wen Chen

IPC分类号： H04N19/00 ,  H04N19/513 ,  H04N19/176 ,  H04N19/597 ,  H04N19/593 ,  H04N19/573 ,  H04N19/58 ,  H04N19/105 ,  H04N19/11 ,  H04N19/103

CPC分类号： H04N19/513 ,  H04N19/00 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/573 ,  H04N19/58 ,  H04N19/593 ,  H04N19/597

摘要： A method and apparatus for spatial motion vector prediction (MVP) candidate derivation for Direct mode and Skip mode in three-dimensional video coding are disclosed. The motion vector of each neighboring block is associated with a corresponding reference picture index pointing to a corresponding reference picture. For both the Direct mode and the Skip mode, the motion vector of each neighboring block is selected as the spatial MVP candidate for each neighboring block only if the corresponding reference picture index is the same as a selected target reference picture index. In one embodiment, the target reference picture index is set to 0. In another embodiment, the target reference picture index corresponds to a majority of the corresponding reference picture indexes associated with the neighboring blocks in Direct mode or Skip mode.

公开(公告)号：US20160173905A1

公开(公告)日：2016-06-16

申请号：US15053207

申请日：2016-02-25

申请人： MediaTek Inc.

发明人： Jian-Liang Lin ,  Yi-Wen Chen ,  Yu-Pao Tsai ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC分类号： H04N19/52 ,  H04N19/56 ,  H04N19/533

CPC分类号： H04N19/52 ,  H04N19/533 ,  H04N19/56

摘要： A method for deriving a motion vector predictor (MVP) receives motion vectors (MVs) associated with reference blocks of the current block. The method determines at least one first spatial search MV associated with a first MV searching order and at least one second spatial search MV associated with a second MV searching order for each neighboring reference block. Then, the method determines whether a first available-first spatial search MV exists for said at least one neighboring reference block according to the first MV searching order, and provides the first available-first spatial search MV as a spatial MVP for the current block. Finally, the method determines whether a first available-second spatial search MV exists for said at least one neighboring reference block according to the second MV searching order only if none of first spatial search MVs for said at least one neighboring reference block is available.

摘要翻译： 用于导出运动矢量预测器（MVP）的方法接收与当前块的参考块相关联的运动矢量（MV）。 该方法确定与第一MV搜索顺序相关联的至少一个第一空间搜索MV和与每个相邻参考块的第二MV搜索顺序相关联的至少一个第二空间搜索MV。 然后，该方法根据第一MV搜索顺序确定对于所述至少一个相邻参考块是否存在第一可用第一空间搜索MV，并且提供第一可用第一空间搜索MV作为当前块的空间MVP。 最后，如果所述至少一个相邻参考块的第一空间搜索MV都不可用，则该方法根据第二MV搜索顺序来确定是否存在针对所述至少一个相邻参考块的第一可用第二空间搜索MV。

公开(公告)号：US20150281708A1

公开(公告)日：2015-10-01

申请号：US14378965

申请日：2013-03-19

申请人： MEDIATEK INC.

发明人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang ,  Jian-Liang Lin ,  Yi-Wen Chen ,  Shih-Ta Hsiang ,  Shan Liu ,  Shaw-Min Lei

IPC分类号： H04N19/33 ,  H04N19/577 ,  H04N19/52

CPC分类号： H04N19/33 ,  H04N19/52 ,  H04N19/577 ,  H04N19/96

摘要： A method and apparatus for coding video data using Inter prediction mode or Merge mode in a video coding system are disclosed, where the video data is configured into a Base Layer (BL) and an Enhancement Layer (EL), and the EL has higher spatial resolution or better video quality than the BL. In one embodiment, at least one information piece of motion information associated with one or more BL blocks in the BL is identified. A motion vector prediction (MVP) candidate list or a Merge candidate list for the selected block in the EL is then determined, where said at least one information piece associated with said one or more BL blocks in the BL is included in the MVP-candidate list or a Merge candidate MVP candidate list or the Merge candidate list. The input data associated with the selected block is coded or decoded using the MVP candidate list or the Merge candidate list.

摘要翻译： 公开了一种在视频编码系统中使用帧间预测模式或合并模式对视频数据进行编码的方法和装置，其中将视频数据配置为基本层（BL）和增强层（EL），并且EL具有较高的空间 分辨率或更好的视频质量比BL。 在一个实施例中，识别与BL中的一个或多个BL块相关联的运动信息的至少一个信息片段。 然后确定EL中所选块的运动矢量预测（MVP）候选列表或合并候选列表，其中与BL中的所述一个或多个BL块相关联的所述至少一个信息片段被包括在MVP候选中 列表或合并候选MVP候选列表或合并候选列表。 与所选择的块相关联的输入数据使用MVP候选列表或合并候选列表进行编码或解码。

公开(公告)号：US20150264397A1

公开(公告)日：2015-09-17

申请号：US14433318

申请日：2013-09-25

申请人： MEDIATEK INC.

发明人： Jian-Liang Lin ,  Yi-Wen Chen

IPC分类号： H04N19/597 ,  H04N19/176 ,  H04N13/00 ,  H04N19/52

CPC分类号： H04N19/597 ,  H04N13/161 ,  H04N19/176 ,  H04N19/52 ,  H04N19/573

摘要： A method and apparatus for three-dimensional video coding and multi-view video coding are disclosed. Embodiments according to the present invention derive a unified disparity vector (DV) based on neighboring blocks of the current block or depth information associated with the current block and locate a single corresponding block in a reference view according to the unified DV. An inter-view motion vector prediction (MVP) candidate is then derived for both list0 and list1 from the single corresponding block. List0 and list1 MVs of the inter-view MVP candidate are derived from the single corresponding block located according to the unified DV.

摘要翻译： 公开了一种用于三维视频编码和多视点视频编码的方法和装置。 根据本发明的实施例基于当前块的相邻块或与当前块相关联的深度信息导出统一的视差矢量（DV），并且根据统一的DV在参考视图中定位单个相应的块。 然后从单个对应的块中为list0和list1导出视角间的运动矢量预测（MVP）候选。 视频间MVP候选的List0和List1 MV从根据统一DV定位的单个对应块导出。

公开(公告)号：US20150201215A1

公开(公告)日：2015-07-16

申请号：US14411503

申请日：2013-07-25

申请人： MEDIATEK INC.

发明人： Yi-Wen Chen ,  Jian-Liang Lin ,  Jicheng An ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/513 ,  H04N19/176

CPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

摘要： A method for three-dimensional video encoding or decoding are disclosed. In one embodiment, the method constrains the disparity vector (DV) to generate a constrained DV, wherein horizontal, vertical, or both components of the constrained DV is constrained to be zero or within a range from M to N units of DV precision, and M and N are integers. In another embodiment, a derived DV for DV based motion-compensated-prediction is determined from a constrained neighboring block set of the current block. In yet another embodiment, a derived disparity vector is derived to replace an inter-view Merge candidate if the inter-view Merge candidate of the current block is not available or not valid. In yet another embodiment, a DV difference (DVD) or a motion vector difference (MVD) for the current block is determined according to a DV and the DVD/MVP is constrained to be zero or within a range.

摘要翻译： 公开了一种用于三维视频编码或解码的方法。 在一个实施例中，该方法约束视差矢量（DV）以产生受约束的DV，其中约束DV的水平，垂直或两个分量被约束为零或在从M到N个DV精度的范围内，以及 M和N是整数。 在另一个实施例中，从当前块的约束相邻块集合确定用于基于DV的运动补偿预测的导出DV。 在另一个实施例中，如果当前块的视图间合并候选不可用或不可用，则导出导出的视差向量来替换视角间合并候选。 在另一个实施例中，根据DV确定当前块的DV差（DVD）或运动矢量差（MVD），并且将DVD / MVP约束为零或在一个范围内。

公开(公告)号：US20150181229A1

公开(公告)日：2015-06-25

申请号：US14406531

申请日：2013-07-02

申请人： MEDIATEK INC.

发明人： Jian-Liang Lin ,  Yi-Wen Chen

IPC分类号： H04N19/597 ,  H04N19/176 ,  H04N19/159 ,  H04N19/105 ,  H04N19/52 ,  H04N19/513

CPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/31 ,  H04N19/52 ,  H04N19/521

摘要： A method and apparatus for three-dimensional video coding are disclosed. Embodiments according to the present invention apply the pruning process to one or more spatial candidates and at least one of the inter-view candidate and the temporal candidate to generate a retained candidate set. The pruning process removes any redundant candidate among one or more spatial candidates and at least one of the inter-view candidate and the temporal candidate. A Merge/Skip candidate list is then generated, which includes the retained candidate set. In one embodiment, the temporal candidate is exempted from the pruning process. In another embodiment, the inter-view candidate is exempted from the pruning process. In other embodiments of the present invention, the pruning process is applied to the inter-view candidate and two or more spatial candidates. The pruning process compares the spatial candidates with the inter-view candidate.

摘要翻译： 公开了一种用于三维视频编码的方法和装置。 根据本发明的实施例将修剪过程应用于一个或多个空间候选和视角间候选和时间候选中的至少一个，以生成保留候选集。 修剪过程去除一个或多个空间候选者中的任何冗余候选以及视角间候选和时间候选中的至少一个。 然后生成合并/跳过候选列表，其包括保留的候选集。 在一个实施例中，时间候选者免于修剪过程。 在另一个实施例中，视频间候选者被免除修剪过程。 在本发明的其他实施例中，修剪过程被应用于视角间候选者和两个或更多空间候选。 修剪过程将空间候选者与视频间候选者进行比较。

公开(公告)号：US20140247884A1

公开(公告)日：2014-09-04

申请号：US14353025

申请日：2012-11-07

申请人： MEDIATEK INC.

发明人： Tzu-Der Chuang ,  Jian-Liang Lin ,  Ching-Yeh Chen ,  Yi-Wen Chen ,  Yu-Wen Huang

IPC分类号： H04N19/51 ,  H04N19/583 ,  H04N19/30

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/42 ,  H04N19/513 ,  H04N19/567 ,  H04N19/58 ,  H04N19/91

摘要： A method and apparatus for deriving a scaled MV (motion vector) for a current block based on a candidate MV associated with a candidate block are disclosed. Embodiments according to the present invention increase effective scaling factor of motion vector scaling. In one embodiment, a distance ratio of a first picture distance between a current picture and a target reference picture pointed to by a current motion vector of the current block to a second picture distance between a candidate picture corresponding to the candidate block and a candidate reference picture pointed to by the candidate MV is computed. The scaled MV is then generated based on the candidate MV according to the distance ratio, where the scaled MV has an effective scaling ratio between −m and n, and wherein m and n are positive integers greater than 4. The values of m and n can be 8, 16 or 32.

摘要翻译： 公开了一种用于基于与候选块相关联的候选MV导出当前块的缩放MV（运动矢量）的方法和装置。 根据本发明的实施例增加了运动矢量缩放的有效缩放因子。 在一个实施例中，由当前块的当前运动矢量指向的当前画面和目标参考画面之间的第一画面距离与候选块对应的候选画面与候选画面之间的第二画面距离的距离比 计算由候选MV指向的图片。 然后根据距离比，基于候选MV生成缩放的MV，其中缩放的MV具有-m和n之间的有效缩放比率，并且其中m和n是大于4的正整数。m和n的值 可以是8,16或32。