公开(公告)号：US20150281733A1

公开(公告)日：2015-10-01

申请号：US14433303

申请日：2013-08-29

Applicant: MEDIATEK INC.

Inventor： Chih-Ming Fu ,  Yi-Wen Chen ,  Jian-Liang Lin ,  Yu-Wen Huang

IPC: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/513 ,  H04N19/187

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/187 ,  H04N19/30 ,  H04N19/513 ,  H04N19/70

Abstract: A method and apparatus for three-dimensional and scalable video coding are disclosed. Embodiments according to the present invention determine a motion information set associated with the video data, wherein at least part of the motion information set is made available or unavailable conditionally depending on the video data type. The video data type may correspond to depth data, texture data, a view associated with the video data in three-dimensional video coding, or a layer associated with the video data in scalable video coding. The motion information set is then provided for coding or decoding of the video data, other video data, or both. At least a flag may be used to indicate whether part of the motion information set is available or unavailable. Alternatively, a coding profile for the video data may be used to determine whether the motion information is available or not based on the video data type.

Abstract translation: 公开了一种用于三维和可缩放视频编码的方法和装置。 根据本发明的实施例确定与视频数据相关联的运动信息集，其中运动信息集的至少一部分根据视频数据类型有条件地可用或不可用。 视频数据类型可以对应于深度数据，纹理数据，与三维视频编码中的视频数据相关联的视图，或者与可分级视频编码中的视频数据相关联的层。 然后提供运动信息集用于视频数据，其他视频数据或两者的编码或解码。 至少可以使用标志来指示运动信息集的部分是可用还是不可用。 或者，视频数据的编码简档可以用于基于视频数据类型来确定运动信息是否可用。

公开(公告)号：US20150189321A1

公开(公告)日：2015-07-02

申请号：US14538200

申请日：2014-11-11

Applicant: MEDIATEK INC.

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

IPC: H04N19/597 ,  H04N19/13 ,  H04N19/176 ,  H04N19/70 ,  H04N19/139

CPC classification number: H04N19/597 ,  H04N19/70 ,  H04N19/91

Abstract: A method for improved binarization and entropy coding process of syntax related to depth coding is disclosed. In one embodiment, a first value associated with the current depth block is bypass coded, where the first value corresponds to the residual magnitude of a block coded by an Intra or Inter SDC mode, the delta magnitude of a block coded by a DMM mode, or a residual sign of a block coded by the Inter SDC mode. In another embodiment, a first bin of a binary codeword is coded using arithmetic coding and the rest bins of the binary codeword are coded using bypass coding. The codeword corresponds to the residual magnitude of a block coded by the Intra or Inter SDC mode, or the delta DC magnitude of a block coded by the DMM mode.

Abstract translation: 公开了一种用于改进与深度编码相关的语法的二值化和熵编码处理的方法。 在一个实施例中，与当前深度块相关联的第一值被旁路编码，其中第一值对应于通过内部或内部SDC模式编码的块的剩余幅度，由DMM模式编码的块的增量幅度， 或通过Inter SDC模式编码的块的残余符号。 在另一个实施例中，使用算术编码对二进制码字的第一个二进制编码，并且使用旁路编码对二进制码字的其余的存储体进行编码。 码字对应于通过帧间或间隔SDC模式编码的块的剩余幅度或由DMM模式编码的块的增量DC幅度。

公开(公告)号：US09525879B2

公开(公告)日：2016-12-20

申请号：US15047943

申请日：2016-02-19

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen ,  Yu-Wen Huang ,  Chih-Ming Fu ,  Chi-Ling Wu ,  Yu-Pao Tsai ,  Ching-Yeh Chen ,  Shaw-Min Lei

IPC: H04N11/02 ,  H04N19/109 ,  H04N19/52 ,  H04N19/65 ,  H04N19/895 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/174 ,  H04N19/177 ,  H04N19/184 ,  H04N19/567 ,  H04N19/593 ,  H04N19/615 ,  H04N19/70

CPC classification number: H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/174 ,  H04N19/177 ,  H04N19/184 ,  H04N19/52 ,  H04N19/567 ,  H04N19/593 ,  H04N19/615 ,  H04N19/65 ,  H04N19/70 ,  H04N19/895

Abstract: A method and apparatus for deriving a motion vector predictor (MVP) are disclosed. The MVP is selected from spatial MVP and temporalone or more MVP candidates. The method determines a value of a flag in a video bitstream, where the flag is utilized for selectively disabling use of one or more temporal MVP candidates for motion vector prediction. The method selects, based on an index derived from the video bitstream, the MVP from one or more non-temporal MVP candidates responsive to the flag indicating that said one or more temporal MVP candidates are not to be utilized for motion vector prediction. Further, the method provides the MVP for the current block.

Abstract translation: 公开了一种用于导出运动矢量预测器（MVP）的方法和装置。 MVP是从空间MVP和temporalㄧ或更多MVP候选中选出的。 该方法确定视频比特流中的标志的值，其中该标志用于选择性地禁用一个或多个用于运动矢量预测的时间MVP候选的使用。 该方法基于从视频比特流导出的索引，根据指示所述一个或多个时间MVP候选不用于运动矢量预测的标志从一个或多个非时间MVP候选中选择MVP。 此外，该方法为当前块提供MVP。

公开(公告)号：US09503751B2

公开(公告)日：2016-11-22

申请号：US14480788

申请日：2014-09-09

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

IPC: H04N11/02 ,  H04N19/597 ,  H04N19/11 ,  H04N19/593

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

Abstract: A method and apparatus for Simplified Depth Coding (SDC) with extended Intra prediction modes are disclosed. Embodiments of the present invention use an extended Intra prediction mode set including Horizontal mode and Vertical mode. When the Horizontal mode is selected, the prediction samples for the current depth block are derived based on a reconstructed neighboring depth column adjacent to a left block boundary of the current depth block by generating rows of the prediction samples from the reconstructed neighboring depth column. When the Vertical mode is selected, the prediction samples for the current depth block are derived based on a reconstructed neighboring depth row adjacent to a top block boundary of the current depth block by generating columns of the prediction samples from the reconstructed neighboring depth row.

Abstract translation: 公开了一种具有扩展帧内预测模式的简化深度编码（SDC）的方法和装置。 本发明的实施例使用包括水平模式和垂直模式的扩展帧内预测模式集合。 当选择水平模式时，通过从重建的相邻深度列生成预测样本的行，基于与当前深度块的左边界相邻的重建的相邻深度列，导出当前深度块的预测样本。 当选择垂直模式时，通过从重构的相邻深度行生成预测样本的列，基于与当前深度块的顶部块边界相邻的重建的相邻深度行来导出当前深度块的预测样本。

公开(公告)号：US20150201216A1

公开(公告)日：2015-07-16

申请号：US14412203

申请日：2013-07-05

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen ,  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 ,  H04N19/176 ,  H04N19/513

Abstract: A method and apparatus for three-dimensional video coding or multi-view video coding are disclosed. Embodiments according to the present invention derive a unified disparity vector from depth information for Inter mode and Skip/Direct mode. The unified disparity vector is derived from a subset of depth samples in an associated depth block corresponding to the current block using a unified derivation method. The unified derivation method is applied in Inter mode, Skip mode, or Direct mode when a disparity vector derived from depth data is required for encoding or decoding. The unified disparity vector can also be applied to derive a disparity vector for locating a corresponding block, and thus an inter-view motion vector candidate can be determined for Skip mode or Direct mode.

Abstract translation: 公开了一种用于三维视频编码或多视点视频编码的方法和装置。 根据本发明的实施例从Inter模式和Skip / Direct模式的深度信息导出统一的视差矢量。 使用统一的导出方法，从与当前块相对应的相关深度块中的深度样本的子集导出统一的视差矢量。 当需要从深度数据导出的视差矢量进行编码或解码时，统一推导方法应用于Inter模式，跳过模式或直接模式。 统一的视差矢量也可以应用于导出用于定位相应块的视差矢量，因此可以为跳跃模式或直接模式确定视角间的运动矢量候选。

公开(公告)号：US20150201214A1

公开(公告)日：2015-07-16

申请号：US14408956

申请日：2013-06-27

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen ,  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 ,  H04N19/157 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52

Abstract: A method and apparatus for three-dimensional video encoding or decoding using the disparity vector derived from an associated depth block are disclosed. The method determines an associated depth block for a current texture block and derives a derived disparity vector based on a subset of depth samples of the associated depth block. The subset contains less depth samples than the associated depth block and the subset excludes a single-sample subset cprresponding to a center sample of the associated depth block. The derived disparity vector can be used as an inter-view motion (disparity) vector predictor in Inter mode, an inter-view (disparity) candidate in Merge mode or Skip mode. The derived disparity vector can also be used to locate a reference block for inter-view motion prediction in Inter mode, inter-view candidate in Merge or Skip mode, inter-view motion prediction, inter-view disparity prediction, or inter-view residual prediction.

Abstract translation: 公开了使用从相关深度块导出的视差矢量进行三维视频编码或解码的方法和装置。 该方法确定当前纹理块的相关深度块，并且基于相关深度块的深度样本的子集导出导出的视差向量。 该子集包含比相关联的深度块更少的深度样本，并且子集排除对应于相关深度块的中心样本的单样本子集cpr。 导出的视差矢量可以用作Inter模式中的视角间运动（视差）矢量预测器，合并模式或跳跃模式下的视差（视差）候选者。 导出的视差矢量也可以用于定位Inter模式下的视角间运动预测的参考块，合并或跳过模式的视角间候选，视角间运动预测，视角间视差预测或视角间残差 预测。

公开(公告)号：US10484696B2

公开(公告)日：2019-11-19

申请号：US15038599

申请日：2015-01-07

Applicant: MEDIATEK INC.

Inventor： Yu-Chen Sun ,  Tzu-Der Chuang ,  Yi-Wen Chen ,  Yu-Wen Huang

IPC: H04N19/186 ,  H04N19/70 ,  H04N19/463 ,  H04N19/93 ,  H04N19/176 ,  H04N19/182 ,  H04N19/129

Abstract: A method and apparatus for coding a block of video data using index or pixel value prediction including a copy-by-pattern-search mode are disclosed. According to the present invention, a current search pattern is determined based on one or more previous coded pixels. One or more predictors are derived according to the current search pattern for a current index or pixel value of a current pixel in the current block. Encoding or decoding is then applied to one or more following indices or pixel values of one or more following pixels including the current pixel using the predictors. In a simplest case, the one or more previous coded pixels correspond to a single previous coded pixel at the left side of the current pixel and the one or more following pixels contain only the current pixel.

公开(公告)号：US10075690B2

公开(公告)日：2018-09-11

申请号：US14916462

申请日：2014-10-17

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

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

CPC classification number: H04N13/161 ,  G06K9/6201 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

Abstract: 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：US09998755B2

公开(公告)日：2018-06-12

申请号：US14433348

申请日：2013-09-30

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

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

CPC classification number: H04N19/55 ,  H04N13/161 ,  H04N19/105 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

Abstract: 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

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

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

CPC classification number: H04N19/513 ,  H04N19/00 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/573 ,  H04N19/58 ,  H04N19/593 ,  H04N19/597

Abstract: 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.