公开(公告)号：US20150016506A1

公开(公告)日：2015-01-15

申请号：US14380710

申请日：2013-02-22

Applicant: MEDIATEK INC.

Inventor： Chih-Ming Fu ,  Chia-Yang Tsai ,  Chih-Wei Hsu ,  Ching-Yeh Chen ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/82 ,  H04N19/167

Abstract: A method and apparatus for loop filter processing of video data in a video encoder or decoder are disclosed. Embodiments according to the present invention conditionally allow sharing of loop filter parameters. In one embodiment, sharing of loop filter information between the current block and a neighboring block is determined according to a condition. If the condition indicates that sharing of loop filter information is allowed, a merge flag is coded and incorporated in the video bitstream in an encoder, and a merge flag is parsed from the video bitstream and decoded in a decoder. In one embodiment, the condition depends on region partitioning of the picture, where region partitioning partitions the picture into regions and the region may correspond to a slice or a tile. The condition is set to indicate that sharing of loop filter information is allowed if the block and the neighboring block are in a same slice/tile.

Abstract translation: 公开了一种用于视频编码器或解码器中的视频数据的环路滤波处理的方法和装置。 根据本发明的实施例有条件地允许共享环路滤波器参数。 在一个实施例中，根据条件确定当前块和相邻块之间的环路滤波器信息的共享。 如果条件指示允许共享环路滤波器信息，则将合并标志编码并并入编码器中的视频比特流中，并且从视频比特流中解析合并标志并在解码器中进行解码。 在一个实施例中，条件取决于图像的区域划分，其中区域划分将图像分割成区域，并且该区域可以对应于切片或瓦片。 条件被设置为指示如果块和相邻块在相同的片/片中，则允许共享环路滤波器信息。

公开(公告)号：US20150003514A1

公开(公告)日：2015-01-01

申请号：US14368264

申请日：2012-11-22

Applicant: MEDIATEK INC.

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

IPC: H04N19/136 ,  H04N19/129 ,  H04N19/60

CPC classification number: H04N19/647 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/46 ,  H04N19/60

Abstract: A method and apparatus for significance map context selection are disclosed. According to the present invention, the TUs are divided into sub-blocks and at least two context sets are used. Non-DC transform coefficients in each sub-block are coded based on the same context, context set, or context formation. The context, context set, or context formation for each sub- block can be determined based on sub-block index in scan order, horizontal sub-block index, vertical sub-block index, video component type, TU width, TU height, or any combination of the above. In one embodiment, the sum of the horizontal and the vertical sub-block indexes is used to classify each sub-block into a class and the context, context set, or context formation is then determined according to the class.

Abstract translation: 公开了一种重要地图上下文选择的方法和装置。 根据本发明，将TU划分为子块，并使用至少两个上下文集合。 基于相同的上下文，上下文集或上下文形成对每个子块中的非DC变换系数进行编码。 可以基于扫描顺序的子块索引，水平子块索引，垂直子块索引，视频分量类型，TU宽度，TU高度或者根据子块索引来确定每个子块的上下文，上下文集或上下文形成 以上任何组合。 在一个实施例中，水平和垂直子块索引的和用于将每个子块分类到类中，然后根据该类确定上下文，上下文集或上下文形成。

公开(公告)号：US20140072033A1

公开(公告)日：2014-03-13

申请号：US14115051

申请日：2012-05-31

Applicant: MEDIATEK INC.

Inventor： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu- Wen Huang ,  Shaw-Min Lei ,  Chih-Ming Fu ,  Chia-Yang TSai

IPC: H04N7/26

CPC classification number: H04N19/13 ,  H04N19/117 ,  H04N19/119 ,  H04N19/146 ,  H04N19/154 ,  H04N19/187 ,  H04N19/30 ,  H04N19/33 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: A method and apparatus for scalable video coding are disclosed, wherein the video data is configured into a Base Layer (BL) and an Enhancement Layer (EL) and wherein the EL has higher spatial resolution or better video quality than the BL. According to embodiments of the present invention, information from the base layer is exploited for coding the enhancement layer. The information coding for the enhancement layer includes CU structure, motion information, motion information, MVP/merge candidates, intra prediction mode, residual quadtree information, texture information, residual information, context adaptive entropy coding, Adaptive Lop Filter (ALF), Sample Adaptive Offset (SAO), and deblocking filter.