公开(公告)号：US09560362B2

公开(公告)日：2017-01-31

申请号：US14365032

申请日：2012-12-14

Applicant: MEDIATEK INC.

Inventor： Chih-Ming Fu ,  Yi-Wen Chen ,  Chih-Wei Hsu

IPC: H04N7/12 ,  H04N19/117 ,  H04N19/597 ,  H04N19/172 ,  H04N19/463 ,  H04N19/136 ,  H04N19/187 ,  H04N19/82

CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/172 ,  H04N19/187 ,  H04N19/463 ,  H04N19/597 ,  H04N19/82

Abstract: A method and apparatus for 3D video coding system are disclosed. Embodiments according to the present invention apply SAO process (sample adaptive offset process) to at least one dependent-view image of the processed multi-view images if processed multi-view images are received. Also embodiments according to the present invention apply the SAO process to at least one dependent-view image of the processed multi-view images or at least one depth map of the processed multi-view depth maps if both processed multi-view images and the processed multi-view depth maps are received. The SAO can be applied to each color component of the processed multi-view images or the processed multi-view depth maps. The SAO parameters associated with a target region in one dependent-view image or in one depth map corresponding to one view may share or may be predicted by second SAO parameters associated with a source region corresponding to another view.

Abstract translation: 公开了一种用于3D视频编码系统的方法和装置。 如果接收到处理的多视图图像，则根据本发明的实施例将SAO过程（样本自适应偏移处理）应用于经处理的多视图图像的至少一个从属视图图像。 根据本发明的实施例还将SAO过程应用于经处理的多视图图像的至少一个从属视图图像或处理的多视图深度图的至少一个深度图，如果处理的多视图图像和处理的多视图图像 收到多视图深度图。 可以将SAO应用于经处理的多视图图像的每个颜色分量或经处理的多视图深度图。 与一个依赖视图图像中的目标区域相关联的SAO参数或对应于一个视图的一个深度图中的SAO参数可以共享或者可以通过与对应于另一个视图的源区域相关联的第二SAO参数来预测。

公开(公告)号：US20160173905A1

公开(公告)日：2016-06-16

申请号：US15053207

申请日：2016-02-25

Applicant: MediaTek Inc.

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

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

CPC classification number: H04N19/52 ,  H04N19/533 ,  H04N19/56

Abstract: 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.

Abstract translation: 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：US20150296222A1

公开(公告)日：2015-10-15

申请号：US14434258

申请日：2013-10-08

Applicant: MEDIATEK INC.

Inventor： Jian-Liang LIin ,  Yi-Wen Chen

IPC: H04N19/597 ,  H04N19/52 ,  H04N19/34

CPC classification number: H04N19/597 ,  H04N19/30 ,  H04N19/34 ,  H04N19/52

Abstract: Embodiments of the present invention re-use at least a portion of motion information of the corresponding block for the motion information of the current block if a corresponding reference picture corresponding to a reference picture pointed by the corresponding block is in a current reference picture list of the current block. If the corresponding reference picture is not in the current reference picture list of the current block, the motion information of the current block is determined using an alternative process, where at least a portion of the motion information, which was used in the previous case, is not re-used for the current block according to the alternative process.

Abstract translation: 如果对应于由相应块指向的参考图像的相应参考图片在当前块的当前参考图片列表中，则本发明的实施例重新使用对应块的运动信息的至少一部分用于当前块的运动信息 当前块。 如果对应的参考图像不在当前块的当前参考图像列表中，则使用替代处理来确定当前块的运动信息，其中在先前情况下使用的运动信息的至少一部分， 根据替代过程不会对当前块重新使用。

公开(公告)号：US20150281708A1

公开(公告)日：2015-10-01

申请号：US14378965

申请日：2013-03-19

Applicant: MEDIATEK INC.

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

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

CPC classification number: H04N19/33 ,  H04N19/52 ,  H04N19/577 ,  H04N19/96

Abstract: 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.

Abstract translation: 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

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

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

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N19/176 ,  H04N19/52 ,  H04N19/573

Abstract: 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.

Abstract translation: 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

Applicant: MEDIATEK INC.

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

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

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

Abstract: 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.

Abstract translation: 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

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

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

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/31 ,  H04N19/52 ,  H04N19/521

Abstract: 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.

Abstract translation: 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

Applicant: MEDIATEK INC.

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

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

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 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.

Abstract translation: 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。

公开(公告)号：US20140226725A1

公开(公告)日：2014-08-14

申请号：US14256971

申请日：2014-04-20

Applicant: MEDIATEK INC.

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

IPC: H04N19/51

CPC classification number: H04N19/513 ,  H04N19/52

Abstract: An apparatus and method of deriving a motion vector predictor (MVP) for a current MV of a current block in Inter, Merge or Skip mode are disclosed based on motion vector (MV) attribute search. The system determines first MV attribute search comprising whether a given MV pointing to the target reference picture in the given reference list, or whether the given MV pointing to the target reference picture in other reference list, and determines second MV attribute search comprising whether the given MV pointing to other reference pictures in the given reference list, or whether the given MV pointing to the other reference pictures in the other reference list. The MVP for the current block is then determined from the neighboring blocks according to a search order.

Abstract translation: 基于运动矢量（MV）属性搜索，公开了针对Inter，Merge或者Skip模式中的当前块的当前MV的导出运动矢量预测器（MVP）的装置和方法。 系统确定第一MV属性搜索，其包括指定给定参考列表中的目标参考图片的给定MV，或者指定给定MV在其他参考列表中的目标参考图片，以及确定第二MV属性搜索，包括是否给定 MV指向给定参考列表中的其他参考图片，或者给定MV是否指向另一个参考列表中的其他参考图片。 然后根据搜索顺序从相邻块确定当前块的MVP。

公开(公告)号：US10999595B2

公开(公告)日：2021-05-04

申请号：US15776154

申请日：2016-11-08

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Tzu-Der Chuang ,  Yu-Wen Huang ,  Yi-Wen Chen

IPC: H04N19/517 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: A method and apparatus of priority-based MVP (motion vector predictor) derivation for motion compensation in a video encoder or decoder are disclosed. According to this method, one or more final motion vector predictors (MVPs) are derived using priority-based MVP derivation process. The one or more final MVPs are derived by selecting one or more firstly available MVs from a priority-based MVP list for Inter prediction mode, Skip mode or Merge mode based on reference data of one or two target reference pictures that are reconstructed prior to the current block according to a priority order. Therefore, there is no need for transmitting information at the encoder side nor deriving information at the decoder side that is related to one or more MVP indices to identify the one or more final MVPs in the video bitstream.