公开(公告)号：US10412407B2

公开(公告)日：2019-09-10

申请号：US15772876

申请日：2016-10-28

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

IPC: H04N19/52 ,  H04N19/91 ,  H04N19/176 ,  H04N19/159 ,  H04N19/124

Abstract: A method and apparatus for video coding utilizing a motion vector predictor (MVP) for a motion vector (MV) for a block are disclosed. According to an embodiment, a mean candidate is derived from at least two candidates in the current candidate list. The mean candidate includes two MVs for the bi-prediction or one MV for the uni-prediction, and at least one MV of the mean candidate is derived as a mean of the MVs of said at least two candidates in one of list 0 and list 1. The mean candidate is added to the current candidate list to form a modified candidate list, and one selected candidate is determined as a MVP or MVPs from the modified candidate list, for current MV or MVs of the current block. The current block is then encoded or decoded in Inter, Merge, or Skip mode utilizing the MVP or MVPs selected.

公开(公告)号：US10182242B2

公开(公告)日：2019-01-15

申请号：US15101139

申请日：2014-12-26

Applicant: MediaTek Inc.

Inventor： Yu-Chen Sun ,  Jungsun Kim ,  Tzu-Der Chuang ,  Yi-Wen Chen ,  Wang Lin Lai ,  Shan Liu ,  Yu-Wen Huang

IPC: H04N19/593 ,  H04N19/186 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182

Abstract: A method and apparatus for color index coding of a block of video data using index prediction based on reconstructed neighboring pixels are disclosed. In one embodiment, color index encoding or decoding is applied to the current pixel indices by deriving index prediction from neighboring pixel indices of the reconstructed neighboring pixels. The reconstructed neighboring pixel values are first transformed into the neighboring pixel indices according to a quantization table to map between major color indices and major color values of the current block. The quantization table can be based on a major color table for the current block or can also be derived at a decoder side. The decoding process may reconstruct the current pixels by converting decoded current pixel indices to reconstructed current pixel values according to the quantization table or by directly copying the reconstructed neighboring pixel values indicated by decoded current pixel indices.

公开(公告)号：US10003810B2

公开(公告)日：2018-06-19

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 ,  H04N19/52 ,  H04N19/577 ,  H04N19/96

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 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.

公开(公告)号：US20160309186A1

公开(公告)日：2016-10-20

申请号：US15191428

申请日：2016-06-23

Applicant: MediaTek Inc.

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

IPC: H04N19/597 ,  H04N19/172 ,  H04N19/61 ,  H04N19/70 ,  H04N19/105 ,  H04N19/176 ,  H04N19/52

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 includes receiving first data associated with a current block of a current frame corresponding to a current view; determining a derived disparity vector for disparity-vector based motion-compensated-prediction (DV-MCP) of the current block, wherein the derived disparity vector is derived from a constrained neighboring block set of the current block, and the constrained neighboring block set corresponds to one or more spatial neighboring blocks on left side of the current block, one or more collocated blocks of the current block, or both said one or more spatial neighboring blocks on the left side and said one or more collocated blocks of the current block; and applying inter-view predictive encoding or decoding to the first data based on the derived disparity vector.

Abstract translation: 一种用于三维视频编码或解码的方法包括接收与当前视图对应的当前帧的当前块相关联的第一数据; 确定当前块的基于视差矢量的运动补偿预测（DV-MCP）的导出视差向量，其中从当前块的约束相邻块集合导出导出的视差矢量，并且约束相邻块集对应于 到当前块的左侧上的一个或多个空间相邻块，当前块的一个或多个并置块，或者左侧的所述一个或多个空间相邻块以及当前块的所述一个或多个并置块; 以及基于导出的视差向量将视频间预测编码或解码应用于第一数据。

公开(公告)号：US20160205410A1

公开(公告)日：2016-07-14

申请号：US15072807

申请日：2016-03-17

Applicant: MediaTek Inc.

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

IPC: H04N19/513 ,  H04N19/56 ,  H04N19/583 ,  H04N19/57

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56 ,  H04N19/57 ,  H04N19/583

Abstract: A method and apparatus for deriving a motion vector predictor (MVP) for a motion vector (MV) of a current block of a current picture in Inter, or Merge, or Skip mode. The method selects a co-located block corresponding to a co-located picture and receives one or more reference motion vectors (MVs) of one or more co-located reference blocks associated with the co-located block. The method also determines a search set and determines a search order for the search set, if the search MV corresponding to the given reference list is not available, the search order then searches the search MV corresponding to a reference list different from the given reference list. Finally, the method determines the MVP for the current block based on the search set and the search order and provides the MVP for the current block.

Abstract translation: 一种用于在Inter或Merge或Skip模式中导出当前图像的当前块的运动矢量（MV）的运动矢量预测器（MVP）的方法和装置。 该方法选择与同位置图片相对应的共定位块，并且接收与同位置块相关联的一个或多个同位置参考块的一个或多个参考运动矢量（MV）。 该方法还确定搜索集并确定搜索集的搜索顺序，如果与给定参考列表相对应的搜索MV不可用，则搜索顺序然后搜索与给定参考列表不同的参考列表对应的搜索MV 。 最后，该方法基于搜索集和搜索顺序确定当前块的MVP，并为当前块提供MVP。

公开(公告)号：US20150288985A1

公开(公告)日：2015-10-08

申请号：US14442937

申请日：2013-11-15

Applicant: MEDIATEK INC.

Inventor： Yi-Wen Chen ,  Jian-Liang Lin

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

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

Abstract: A method and apparatus for three-dimensional video encoding or decoding with conditionally constrained disparity vector are disclosed. In one embodiment, a derived DV (disparity vector) for the current texture block is determined and DV constraint is applied or is not applied to the derived DV to obtain a final derived DV. Inter-view predictive encoding or decoding is then applied to the input data utilizing at least one of selected coding tools, wherein a same final derived DV is used by all selected coding tools, and the selected coding tools comprise inter-view residual prediction, view synthesis prediction and inter-view motion parameter prediction.

Abstract translation: 公开了一种用于具有条件约束的视差矢量的三维视频编码或解码的方法和装置。 在一个实施例中，确定当前纹理块的导出DV（视差向量），并且DV约束被应用或不应用于导出的DV以获得最终导出的DV。 然后使用所选择的编码工具中的至少一个将视图间预测编码或解码应用于输入数据，其中由所有选择的编码工具使用相同的最终导出的DV，并且所选择的编码工具包括视图间残差预测，视图 综合预测和视角间运动参数预测。

公开(公告)号：US20140092981A1

公开(公告)日：2014-04-03

申请号：US14123200

申请日：2012-06-12

Applicant: MEDIATEK INC.

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

IPC: H04N7/36

CPC classification number: H04N19/513 ,  H04N19/119 ,  H04N19/52 ,  H04N19/625 ,  H04N19/70

Abstract: A method and apparatus of deriving a motion vector predictor (MVP) for a current block in an Inter, Merge, or Skip mode are disclosed. Embodiments according to the present invention determine redundant MVP candidates according to a non-MV-value based criterion. The redundant MVP candidates are then removed from the MVP candidate set. In other embodiments according to the present invention, motion IDs are assigned to MVP candidates to follow the trail of motion vectors associated with the MVP candidate. An MVP candidate having a same motion ID as a previous MVP is redundant and can be removed from the MVP candidate set. In yet another embodiment, redundant MVP candidates correspond to one or more of the MVP candidates that cause the second 2N×N or N×2N PU to be merged into a 2N×2N PU are removed from the MVP candidate set.

Abstract translation: 公开了以Inter，Merge或Skip模式为当前块导出运动矢量预测器（MVP）的方法和装置。 根据本发明的实施例根据基于非基于MV值的准则来确定冗余MVP候选。 然后从MVP候选集中删除冗余MVP候选。 在根据本发明的其他实施例中，运动ID被分配给MVP候选以跟随与MVP候选相关联的运动矢量的轨迹。 具有与先前MVP相同的运动ID的MVP候选是冗余的，并且可以从MVP候选集中移除。 在另一个实施例中，冗余MVP候选对应于使MVP候选集中的第2N×N或N×2N个PU合并成2N×2N个PU的一个或多个MVP候选。

公开(公告)号：US10341638B2

公开(公告)日：2019-07-02

申请号：US14758413

申请日：2014-01-07

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

IPC: H04N19/176 ,  H04N13/161 ,  H04N19/105 ,  H04N19/597 ,  H04N19/52

Abstract: A method and apparatus using a single converted DV (disparity vector) from the depth data for a conversion region are disclosed. Embodiments according to the present invention receive input data and depth data associated with a conversion region of a current picture in a current dependent view. The conversion region is checked to determine whether it is partitioned into multiple motion prediction sub-blocks. If the conversion region is partitioned into multiple motion prediction sub-blocks, then a single converted DV from the depth data associated with the conversion region is determined and each of the multiple motion prediction sub-blocks of the conversion region is processed according to a first coding tool using the single converted DV. If the conversion region is not partitioned into multiple motion prediction sub-blocks, the conversion region is processed according to the first coding tool or a second coding tool using the single converted DV.

公开(公告)号：US09843820B2

公开(公告)日：2017-12-12

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 ,  H04N19/176 ,  H04N19/513

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.

公开(公告)号：US09736498B2

公开(公告)日：2017-08-15

申请号：US14433318

申请日：2013-09-25

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

IPC: H04N19/597 ,  H04N19/52 ,  H04N19/573 ,  H04N19/176 ,  H04N13/00

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.