公开(公告)号：US09432670B2

公开(公告)日：2016-08-30

申请号：US14594158

申请日：2015-01-11

Applicant: MEDIATEK INC.

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

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/176 ,  H04N19/147 ,  H04N19/14 ,  H04N19/182 ,  H04N19/136 ,  H04N19/86 ,  H04N19/61 ,  H04N19/85

CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/82 ,  H04N19/85 ,  H04N19/86

Abstract: A method and apparatus for sample adaptive offset (SAO) compensation of reconstructed video data are disclosed. In one embodiment, the relation between the current pixel and said one or more neighboring pixels is stored so that the SAO compensated current pixel can replace the current pixel without buffering the to-be-processed pixels for classification. The SAO process may be performed on a region by region basis to adapt to the local characteristics of the picture.

Abstract translation: 公开了一种重建视频数据采样自适应偏移（SAO）补偿的方法和装置。 在一个实施例中，存储当前像素和所述一个或多个相邻像素之间的关系，使得SAO补偿的当前像素可以替代当前像素而不缓冲待分析的待处理像素。 可以在逐个区域的基础上执行SAO处理，以适应图像的局部特征。

公开(公告)号：US09154778B2

公开(公告)日：2015-10-06

申请号：US13904294

申请日：2013-05-29

Applicant: MEDIATEK INC.

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

IPC: H04N19/10 ,  H04N19/86 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/134 ,  H04N19/96 ,  H04N19/117 ,  H04N19/463 ,  H04N19/14 ,  H04N19/137 ,  H04N19/186 ,  H04N19/154 ,  H04N19/174 ,  H04N19/82 ,  H04N19/42

CPC classification number: H04N19/117 ,  H04N19/10 ,  H04N19/115 ,  H04N19/129 ,  H04N19/134 ,  H04N19/137 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/439 ,  H04N19/463 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: A method and apparatus for processing of coded video using adaptive offset (AO) are disclosed. Embodiments of the present invention divide reconstructed video data into multiple filter units and apply adaptive offset to the filter units to generate filtered video data, where boundaries of filter units correspond to boundaries of coding units and each filter unit contains at one or more coding units. Furthermore, two or more of the multiple filter units can be merged as indicated by a merge index to share filter information of the adaptive offset. A filter control flag can be used to indicate filter ON/OFF control. The luma and chroma components may also share the same filter information. In another embodiment, the filter information sharing among filter units can be applied regardless of whether the boundaries of the filter units are aligned with the boundaries of the coding units.

Abstract translation: 公开了一种使用自适应偏移（AO）处理编码视频的方法和装置。 本发明的实施例将重构的视频数据划分为多个滤波器单元，并对滤波器单元应用自适应偏移以产生滤波视频数据，其中滤波器单元的边界对应于编码单元的边界，并且每个滤波器单元包含一个或多个编码单元。 此外，多个滤波器单元中的两个或更多个可以合并，如合并索引所指示的，以共享自适应偏移的滤波器信息。 滤波器控制标志可用于指示滤波器ON / OFF控制。 亮度和色度分量也可以共享相同的过滤器信息。 在另一个实施例中，可以应用滤波器单元之间的滤波器信息共享，而不管滤波器单元的边界是否与编码单元的边界对齐。

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：US20150172666A1

公开(公告)日：2015-06-18

申请号：US14388818

申请日：2013-02-26

Applicant: MEDIATEK INC.

Inventor： Chih-Ming Fu ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N19/132 ,  H04N19/169 ,  H04N19/196 ,  H04N19/167 ,  H04N19/17

CPC classification number: H04N19/132 ,  H04N19/167 ,  H04N19/17 ,  H04N19/1887 ,  H04N19/196 ,  H04N19/463 ,  H04N19/82 ,  H04N19/91

Abstract: A method and apparatus for encoding or decoding SAO (sample adaptive offset) parameters in a video encoder or decoder are disclosed. Embodiments according to the present invention encode or decode signs and magnitudes of SAO offset values separately for a region using band offset, where the signs are coded using bypass mode coding or fixed length coding. In one embodiment, the magnitudes of the SAO offset values for a region are grouped and coded together. If the SAO type is not band offset, the signs of the SAO offset values are omitted from the compressed data associated with the region. In another embodiment, the magnitude of the SAO offset value for band offset is checked to determine whether it is zero. If the magnitude of the SAO offset value is zero, there is no need to incorporate the sign of the SAO offset value in the compressed data.

Abstract translation: 公开了一种在视频编码器或解码器中对SAO（采样自适应偏移）参数进行编码或解码的方法和装置。 根据本发明的实施例对于使用频带偏移的区域分别编码或解码SAO偏移值的符号和幅度，其中使用旁路模式编码或固定长度编码对符号进行编码。 在一个实施例中，区域的SAO偏移值的大小被分组并编码在一起。 如果SAO类型不是带偏移，则与该区域相关联的压缩数据中省略SAO偏移值的符号。 在另一个实施例中，检查频带偏移的SAO偏移值的大小以确定其是否为零。 如果SAO偏移值的大小为零，则不需要在压缩数据中包含SAO偏移值的符号。

公开(公告)号：US20150146782A1

公开(公告)日：2015-05-28

申请号：US14614422

申请日：2015-02-05

Applicant: MEDIATEK INC.

Inventor： Shaw-Min Lei ,  Yu-Wen Huang ,  Xun Guo

IPC: H04N19/82 ,  H04N19/86 ,  H04N19/61 ,  H04N19/91

CPC classification number: H04N19/82 ,  H04N19/46 ,  H04N19/61 ,  H04N19/86 ,  H04N19/865 ,  H04N19/91 ,  H04N19/96

Abstract: An encoder for receiving a video frame and performing encoding processes to generate an encoded bitstream includes: a fidelity enhancement block, for performing a fidelity enhancement technique on processed data utilizing a partition method, and generating fidelity enhancement information comprising at least one parameter associated with a partition structure, wherein the fidelity enhancement technique comprises applying discrepancy modeling based on DC offset; and an entropy coding block, coupled to the fidelity enhancement block, for encoding the fidelity enhancement information, and embedding the encoded fidelity enhancement information into the encoded bitstream.

Abstract translation: 一种用于接收视频帧并执行编码处理以生成编码比特流的编码器包括：保真度增强块，用于使用分区方法对处理后的数据执行保真度增强技术，以及生成保真度增强信息，其包括与 分层结构，其中，保真度增强技术包括基于DC偏移应用差异建模; 以及耦合到保真度增强块的熵编码块，用于对保真度增强信息进行编码，以及将编码的保真度增强信息嵌入到编码比特流中。

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：US20150010091A1

公开(公告)日：2015-01-08

申请号：US14374918

申请日：2013-01-30

Applicant: MEDIATEK INC.

Inventor： Chih-Wei Hsu ,  Chia-Yang Tsai ,  Yu-Wen Huang

IPC: H04N19/82 ,  H04N19/124

CPC classification number: H04N19/124 ,  H04N19/117 ,  H04N19/14 ,  H04N19/154 ,  H04N19/174 ,  H04N19/176 ,  H04N19/82 ,  H04N19/86

Abstract: A method and apparatus for loop filter processing of boundary pixels across a block boundary aligned with a slice or tile boundary is disclosed. Embodiments according to the present invention use a parameter of a neighboring slice or tile for loop filter processing across slice or tile boundaries according to a flag indicating whether cross slice or tile loop filter processing is allowed not. According to one embodiment of the present invention, the parameter is a quantization parameter corresponding to a neighboring slice or tile, and the quantization parameter is used for filter decision in deblocking filter.

Abstract translation: 公开了一种用于与切片或瓦片边界对齐的块边界的边界像素的环路滤波处理的方法和装置。 根据本发明的实施例，根据指示是否允许跨切片或平铺环路滤波处理的标志，使用相邻切片或瓦片的参数进行切片或平铺边界的环路滤波处理。 根据本发明的一个实施例，该参数是对应于相邻切片或瓦片的量化参数，量化参数用于去块滤波器中的滤波器决定。

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：US08798141B2

公开(公告)日：2014-08-05

申请号：US13668316

申请日：2012-11-05

Applicant: Mediatek Inc.

Inventor： Shaw-Min Lei ,  Yu-Wen Huang

IPC: H04N7/12 ,  H04N7/26 ,  H04N7/50

CPC classification number: H04N19/00139 ,  H04N19/117 ,  H04N19/136 ,  H04N19/147 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82

Abstract: A coding system includes a decoding block and a reconstruction loop with first and second adaptive restoration blocks. The decoding block receives and decodes an encoded bitstream to derive residues, prediction information, and adaptive restoration information. The reconstruction loop reconstructs a current frame according to the residues and prediction information. The first adaptive restoration block performs restoration on a first set of processed data according to a first set of the adaptive restoration information, and the second adaptive restoration block performs restoration on an output of the first adaptive restoration block according to a second set of the adaptive restoration information.

Abstract translation: 编码系统包括解码块和具有第一和第二自适应恢复块的重建循环。 解码块接收并解码编码的比特流以导出残差，预测信息和自适应恢复信息。 重建循环根据残差和预测信息重构当前帧。 第一自适应恢复块根据第一组自适应恢复信息对第一组处理数据执行恢复，并且第二自适应恢复块根据第二组自适应恢复块对自适应恢复块的输出执行恢复 恢复信息。

公开(公告)号：US20140085416A1

公开(公告)日：2014-03-27

申请号：US14115099

申请日：2012-06-15

Applicant: MEDIATEK INC.

Inventor： Yu-Lin Chang ,  Shih-Ta Hsiang ,  Chi-Ling Wu ,  Chih-Ming Fu ,  Chia-Ping Chen ,  Yu-Pao Tsai ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N13/00

CPC classification number: H04N13/161 ,  G06T9/00 ,  H04N19/119 ,  H04N19/503 ,  H04N19/597

Abstract: A method and apparatus for texture image compression in a 3D video coding system are disclosed. Embodiments according to the present invention derive depth information related to a depth map associated with a texture image and then process the texture image based on the depth information derived. The invention can be applied to the encoder side as well as the decoder side. The encoding order or decoding order for the depth maps and the texture images can be based on block-wise interleaving or picture-wise interleaving. One aspect of the present invent is related to partitioning of the texture image based on depth information of the depth map. Another aspect of the present invention is related to motion vector or motion vector predictor processing based on the depth information.

Abstract translation: 公开了一种用于3D视频编码系统中的纹理图像压缩的方法和装置。 根据本发明的实施例导出与纹理图像相关联的深度图相关的深度信息，然后基于导出的深度信息处理纹理图像。 本发明可以应用于编码器侧以及解码器侧。 深度图和纹理图像的编码顺序或解码顺序可以基于块式交织或图像交错。 本发明的一个方面涉及基于深度图的深度信息对纹理图像的划分。 本发明的另一方面涉及基于深度信息的运动矢量或运动矢量预测器处理。