公开(公告)号：US20150010072A1

公开(公告)日：2015-01-08

申请号：US14371414

申请日：2012-09-20

Applicant: MEDIATEK INC.

Inventor： Chih-Wei Hsu ,  Tzu-Der Chuang ,  Yu-Wen Huang

IPC: H04N19/61

CPC classification number: H04N19/63 ,  H04N19/129 ,  H04N19/157

Abstract: A method and apparatus for processing 2N×2N transform units (TUs) are disclosed. In one embodiment, the method comprises determining a first-layer scanning order among four N×N sub-blocks of the 2N×2N TU; determining a second-layer scanning pattern for said four N×N sub-blocks; and providing scanned 2N×2N transform coefficients of the intra-coded or the inter-coded 2N×2N TU using double scanning based on the first-layer scanning order and the second-layer scanning pattern. In another embodiment, said determining the first-layer scanning order is dependent on the second-layer scanning pattern. The second-layer scanning pattern can be diagonal, horizontal or vertical. In an embodiment, the first-layer scanning order can be from an upper-left sub-block, to an upper-right sub-block, to a lower-left sub-block and to a lower-right sub-block for the second-layer horizontal scanning pattern and from an upper-left sub-block, to a lower-left sub-block, to an upper-right sub-block and to a lower-right sub-block for other second-layer scanning patterns.

Abstract translation: 公开了一种用于处理2N×2N个变换单元（TU）的方法和装置。 在一个实施例中，该方法包括确定2N×2NTU的四个N×N个子块中的第一层扫描顺序; 确定所述四个N×N子块的第二层扫描模式; 以及基于第一层扫描顺序和第二层扫描图案，使用双扫描提供帧内编码或帧间编码的2N×2NTU的扫描的2N×2N个变换系数。 在另一个实施例中，所述确定第一层扫描顺序取决于第二层扫描图案。 第二层扫描图案可以是对角线，水平方向或垂直方向。 在一个实施例中，第一层扫描顺序可以是从左上子块到右上子块，到左下子块和第二层子块的右下子块 层级水平扫描图案，并且从左上子块到左下子块，到右上子块和用于其他第二层扫描图案的右下子块。

公开(公告)号：US20140241434A1

公开(公告)日：2014-08-28

申请号：US14342374

申请日：2012-10-09

Applicant: MEDIATEK INC

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

IPC: H04N19/51 ,  H04N19/597

CPC classification number: H04N19/597 ,  H04N19/51 ,  H04N19/52 ,  H04N19/96 ,  H04N2013/0081

Abstract: A method and apparatus for deriving MVP (motion vector predictor) for a block for three-dimensional video coding or multi-view video coding are disclosed. Embodiments according to the present invention replace an unavailable inter-view MV of one neighboring block with a disparity vector derived from depth data of a subset of a depth block corresponding to one neighboring block. A method and apparatus for generating additional candidates for motion vector prediction associated with Merge mode or AMVP (Inter) mode for a block are disclosed. Embodiments according to the present invention generate one or more additional MVP candidates to add to the MVP list if the MVP list size is less than a given list size. The additional MVP candidates are generated either by reducing precision of an available MVP in the MVP list or by adding an offset to the available MVP in the MVP list.

Abstract translation: 公开了一种用于导出用于三维视频编码或多视点视频编码的块的MVP（运动矢量预测器）的方法和装置。 根据本发明的实施例用从与一个相邻块相对应的深度块的子集的深度数据导出的视差向量来代替一个相邻块的不可用视角MV。 公开了一种用于生成与块的合并模式或AMVP（Inter）模式相关联的运动矢量预测的附加候选的方法和装置。 如果MVP列表大小小于给定的列表大小，根据本发明的实施例生成一个或多个附加的MVP候选以添加到MVP列表。 通过降低MVP列表中的可用MVP的精度或通过向MVP列​​表中的可用MVP添加偏移来生成附加的MVP候选。