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：US20160127747A1

公开(公告)日：2016-05-05

申请号：US14889406

申请日：2014-07-15

Applicant: MediaTek Inc.

Inventor： Shih-Ta Hsiang ,  Yu-Wen Huang

IPC: H04N19/82 ,  H04N19/567 ,  H04N19/70

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/147 ,  H04N19/182 ,  H04N19/567 ,  H04N19/70 ,  H04N19/86 ,  H04N19/91

Abstract: A method of modified SAO (sample-adaptive offset) processing for a reconstructed picture in a video coding system to improve the performance is disclosed. In one example, a SAO-sign threshold is introduced to determine the sign of the difference between a current reconstructed pixel and a neighboring reconstructed pixel. A range of difference values greater than the negative SAO-sign threshold and smaller than the positive SAO-sign threshold is assigned to have a sign value of 0. In another example, the SAO-offset value is derived by multiplying the SAO-offset sign with a result from applying left shift by the SAO-bit-shift value to the absolute SAO-offset value. In yet another example, the absolute SAO-offset value is coded by truncated Rice (TR) codes and a maximum TR value is indicated by a syntax element.

Abstract translation: 公开了一种用于视频编码系统中的重构图像的改进的SAO（采样自适应偏移）处理方法，以提高性能。 在一个示例中，引入SAO符号阈值以确定当前重建像素和相邻重构像素之间的差的符号。 分配大于负SAO符号阈值且小于正SAO符号阈值的差值的范围以具有符号值0.在另一示例中，SAO偏移值通过将SAO-偏移符号 其结果是将左移由SAO位移位值应用于绝对SAO偏移值。 在另一个示例中，绝对SAO偏移值由截断的Rice（TR）代码编码，并且最大TR值由语法元素指示。

公开(公告)号：US20150341636A1

公开(公告)日：2015-11-26

申请号：US14408947

申请日：2013-04-25

Applicant: MEDIATEK INC.

Inventor： Chia-Yang Tsai ,  Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC: H04N19/105 ,  H04N19/593 ,  H04N19/186

CPC classification number: H04N19/105 ,  H04N19/136 ,  H04N19/186 ,  H04N19/30 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70

Abstract: A method and apparatus of inter-layer and the inter-view adaptive Intra prediction (IL-AIP and IV-AIP) for a video coding system are disclosed. The video data is configured into a Base Layer (BL) and an Enhancement Layer (EL) for the inter-layer video coding system, and the video data is configured into a Base View (BV) and an Enhancement View (EV) for the inter-view video coding system. The adaptive Intra predictor for the to-be-processed block in the EL or the EV is derived based on the BL or the BV. For inter-layer and inter-view adaptive LM Intra prediction, the LM adaptive Intra predictor for the to-be-processed chroma block in the EL or the EV is derived based on the BL or the BV.

Abstract translation: 公开了一种用于视频编码系统的层间方法和装置以及视频间自适应帧内预测（IL-AIP和IV-AIP）。 视频数据被配置为用于层间视频编码系统的基本层（BL）和增强层（EL），视频数据被配置为基本视图（BV）和增强视图（EV），用于 视频间视频编码系统。 EL或EV中待处理块的自适应Intra预测器基于BL或BV导出。 对于层间和视角间自适应LM帧内预测，​​EL或EV中待处理色度块的LM自适应Intra预测器基于BL或BV导出。

公开(公告)号：US09118891B2

公开(公告)日：2015-08-25

申请号：US14258047

申请日：2014-04-22

Applicant: MEDIATEK INC.

Inventor： Yu-Wen Huang ,  Chih-Hui Kuo ,  Kun-Bin Lee

IPC: H04N19/88 ,  H04N19/127 ,  H04N19/48 ,  H04N19/423

CPC classification number: H04N19/127 ,  H04N19/423 ,  H04N19/48 ,  H04N19/88

Abstract: A video processing method for a video image consisting of a plurality of units includes: generating a plurality of information types of at least a first unit and a second unit neighboring the first unit; and storing the plurality of information types of the first unit in a first continuous address space in a buffer and storing the plurality of information types of the second unit in a second continuous address space in the buffer, wherein the first continuous address space is adjacent to the second continuous address space. The plurality of information types of the first and second units are required for coding a specific unit, and the order of the stored plurality of information types of the first and second units is manipulated in each of the first and second continuous address spaces.

Abstract translation: 一种用于由多个单元组成的视频图像的视频处理方法包括：生成与第一单元相邻的至少第一单元和第二单元的多种信息类型; 以及将所述第一单元的所述多个信息类型存储在缓冲器中的第一连续地址空间中，并将所述第二单元的所述多个信息类型存储在所述缓冲器中的第二连续地址空间中，其中，所述第一连续地址空间与 第二个连续地址空间。 需要第一和第二单元的多种信息类型来对特定单元进行编码，并且在第一和第二连续地址空间中的每一个中操纵存储的第一和第二单元的多个信息类型的顺序。

公开(公告)号：US20150124866A1

公开(公告)日：2015-05-07

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 ,  H04N19/136 ,  H04N19/86 ,  H04N19/182

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：US08913656B2

公开(公告)日：2014-12-16

申请号：US13633162

申请日：2012-10-02

Applicant: Mediatek Inc.

Inventor： Chih-Wei Hsu ,  Yu-Wen Huang

IPC: H04N7/26 ,  H04N19/86 ,  H04N19/423 ,  H04N19/82 ,  H04N7/12

CPC classification number: H04N19/117 ,  H04N19/129 ,  H04N19/176 ,  H04N19/423 ,  H04N19/82 ,  H04N19/86

Abstract: A method and apparatus for in-loop processing of reconstructed video are disclosed. The reconstructed video data is partitioned into image units. The image unit corresponds to a Largest Coding Unit (LCU), a slice, or a tile. Horizontal deblocking is applied to the reconstructed video data across vertical image-unit boundaries and then vertical deblocking operates on n pixels of horizontal-deblocked video data on each side of horizontal image-unit boundaries. According to various embodiments of the present invention, the horizontal deblocking is applied to at least one of said n reconstructed lines to generate at least a horizontal-deblocked line for line pn−1. Sample adaptive offset (SAO) processing is then applied to at least a horizontal-deblocked line for line pn based on the horizontal-deblocked line for line pn−1. The above steps are performed before a neighboring image unit below the current image unit arrives.

Abstract translation: 公开了重建视频的环路处理方法和装置。 重建的视频数据被分割成图像单元。 图像单元对应于最大编码单元（LCU），切片或瓦片。 横向图像单位边界对重构的视频数据进行水平去块，然后垂直去块操作在水平图像单位边界两边的水平解块视频数据的n个像素上。 根据本发明的各种实施例，水平解块被施加到所述n个重构线中的至少一个，以生成用于线pn-1的至少一个水平解块线。 然后基于线pn-1的水平解块线将样本自适应偏移（SAO）处理应用于线pn的至少水平去块线。 上述步骤在当前图像单元下方的相邻图像单元到达之前执行。

公开(公告)号：US20140146891A1

公开(公告)日：2014-05-29

申请号：US14114993

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: H04N19/593

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.

Abstract translation: 公开了一种用于可缩放视频编码的方法和装置，其中视频数据被配置为基本层（BL）和增强层（EL），并且其中EL具有比BL更高的空间分辨率或更好的视频质量。 根据本发明的实施例，利用来自基础层的信息来对增强层进行编码。 增强层的信息编码包括CU结构，运动信息，运动信息，MVP /合并候选，帧内预测模式，残余四叉树信息，纹理信息，残差信息，上下文自适应熵编码，自适应Lop滤波器（ALF） 偏移（SAO）和去块滤波器。

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：US20130094568A1

公开(公告)日：2013-04-18

申请号：US13633162

申请日：2012-10-02

Applicant: MEDIATEK INC.

Inventor： Chih-Wei Hsu ,  Yu-Wen Huang

IPC: H04N7/26

CPC classification number: H04N19/117 ,  H04N19/129 ,  H04N19/176 ,  H04N19/423 ,  H04N19/82 ,  H04N19/86

Abstract: A method and apparatus for in-loop processing of reconstructed video are disclosed. The reconstructed video data is partitioned into image units. The image unit corresponds to a Largest Coding Unit (LCU), a slice, or a tile. Horizontal deblocking is applied to the reconstructed video data across vertical image-unit boundaries and then vertical deblocking operates on n pixels of horizontal-deblocked video data on each side of horizontal image-unit boundaries. According to various embodiments of the present invention, the horizontal deblocking is applied to at least one of said n reconstructed lines to generate at least a horizontal-deblocked line for line pn−1. Sample adaptive offset (SAO) processing is then applied to at least a horizontal-deblocked line for line pn based on the horizontal-deblocked line for line pn−1. The above steps are performed before a neighboring image unit below the current image unit arrives.

Abstract translation: 公开了重建视频的环路处理方法和装置。 重建的视频数据被分割成图像单元。 图像单元对应于最大编码单元（LCU），切片或瓦片。 横向图像单位边界对重建的视频数据进行水平去块，然后垂直去块操作在水平图像单位边界两边的水平解块视频数据的n个像素上。 根据本发明的各种实施例，水平解块被施加到所述n个重构线中的至少一个，以生成用于线pn-1的至少一个水平解块线。 然后基于线pn-1的水平解块线将样本自适应偏移（SAO）处理应用于线pn的至少水平去块线。 上述步骤在当前图像单元下方的相邻图像单元到达之前执行。

公开(公告)号：US20130058400A1

公开(公告)日：2013-03-07

申请号：US13668316

申请日：2012-11-05

Applicant: MEDIATEK INC.

Inventor： Shaw-Min Lei ,  Yu-Wen Huang

IPC: H04N7/26

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适应性恢复块对自适应恢复块的输出执行恢复 恢复信息。