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1. 发明申请

WO2015070739A1 METHOD OF BLOCK-BASED ADAPTIVE LOOP FILTERING 审中-公开
标题翻译：基于块的自适应环路滤波方法
公开(公告)号：WO2015070739A1
公开(公告)日：2015-05-21
申请号：PCT/CN2014/090683
申请日：2014-11-10
申请人： MEDIATEK INC.
发明人： TSAI, Chia-Yang , CHEN, Ching-Yeh , HUANG, Yu-Wen
IPC分类号： H04N19/00
CPC分类号： H04N19/82 , H04N19/117 , H04N19/119 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/196 , H04N19/68 , H04N19/70
摘要： A method of adaptive loop filtering for reconstructed video to improve the performance is disclosed. In one embodiment, a loop filter is selected from one or more candidate filters including a circular symmetrical filter candidate. The candidate filters also may include a 1/2-symmetry filter candidate and a flag is used to select between different symmetries. In another embodiment, a priority-based block filter merge is disclosed. A filter merge list consisting of no more than a first number of filter candidates selected from corresponding filters used by corresponding set members in the neighboring block set is generated according to a priority order of the set members in the neighboring block set. In yet another embodiment, the loop filter is shared by reconstructed video in multiple image units of a same group. The filter merge groups are identified by differences of consecutive group indices.
摘要翻译：公开了一种重建视频自适应环路滤波方法，以提高性能。在一个实施例中，从包括圆形对称滤波器候选的一个或多个候选滤波器中选择一个环路滤波器。候选滤波器还可以包括1/2对称滤波器候选，并且标记用于在不同对称之间进行选择。在另一个实施例中，公开了基于优先级的块过滤器合并。根据相邻块集合中的集合成员的优先顺序，生成由相邻块集合中的相应集合成员使用的相应过滤器中选择的不超过第一数目的过滤器候选的过滤器合并列表。在另一个实施例中，环路滤波器由同一组的多个图像单元中的重构视频共享。过滤器合并组由连续组索引的差异来标识。

2. 发明申请

WO2013189205A1 METHOD AND APPARATUS OF ADAPTIVE INTRA PREDICTION FOR INTER-LAYER AND INTER-VIEW CODING 审中-公开
标题翻译：自适应内部预测的方法和装置，用于层间和视频间的编码
公开(公告)号：WO2013189205A1
公开(公告)日：2013-12-27
申请号：PCT/CN2013/074686
申请日：2013-04-25
申请人： MEDIATEK INC.
发明人： TSAI, Chia-Yang , CHUANG, Tzu-Der , CHEN, Ching-Yeh , HUANG, Yu-Wen
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/136 , H04N19/186 , H04N19/30 , H04N19/593 , H04N19/597 , H04N19/70
摘要： 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.
摘要翻译：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。

3. 发明申请

WO2012167713A1 METHOD AND APPARATUS OF SCALABLE VIDEO CODING 审中-公开
标题翻译：可缩放视频编码的方法和设备
公开(公告)号：WO2012167713A1
公开(公告)日：2012-12-13
申请号：PCT/CN2012/076321
申请日：2012-05-31
申请人： MEDIATEK INC. , CHUANG, Tzu-Der , CHEN, Ching-Yeh , HUANG, Yu-Wen , LEI, Shaw-Min , FU, Chih-Ming , TSAI, Chia-Yang
发明人： CHUANG, Tzu-Der , CHEN, Ching-Yeh , HUANG, Yu-Wen , LEI, Shaw-Min , FU, Chih-Ming , TSAI, Chia-Yang
IPC分类号： H04N7/32
CPC分类号： H04N19/13 , H04N19/119 , H04N19/146 , H04N19/154 , H04N19/187 , H04N19/30 , H04N19/33 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/86 , H04N19/96
摘要： 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.
摘要翻译：公开了一种用于可伸缩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具有更高的空间分辨率或更好的视频质量比BL。根据本发明的实施例，来自基础层的信息被用于编码增强层。编码增强层的信息包括CU结构，运动信息，运动信息，MVP /合并候选，帧内预测模式，残差四叉树信息，纹理信息，残差信息，上下文自适应熵编码，自适应滤波器（ALF），采样自适应偏移（SAO）和去块滤波器。

4. 发明申请

WO2012152174A1 METHOD AND APPARATUS FOR REDUCTION OF IN-LOOP FILTER BUFFER 审中-公开
标题翻译：减少内循环滤波器缓冲器的方法和装置
公开(公告)号：WO2012152174A1
公开(公告)日：2012-11-15
申请号：PCT/CN2012/074354
申请日：2012-04-19
申请人： MEDIATEK INC. , HUANG, Yu-Wen , TSAI, Chia-Yang , CHEN, Ching-Yeh , FU, Chih-Ming , LEI, Shaw-Min
发明人： HUANG, Yu-Wen , TSAI, Chia-Yang , CHEN, Ching-Yeh , FU, Chih-Ming , LEI, Shaw-Min
IPC分类号： H04N7/32
CPC分类号： H04N19/0089 , H04N19/117 , H04N19/132 , H04N19/134 , H04N19/182 , H04N19/423 , H04N19/46 , H04N19/80 , H04N19/82 , H04N19/86
摘要： A method and apparatus for in-loop processing of reconstructed video are disclosed. The method and apparatus configure the in-loop processing so that the processing requires no pixel or reduced pixels from other side of a virtual boundary. When the in-loop processing of the to- be- processed pixel requires a pixel from the other side of the virtual boundary, the pixel from the other side of the virtual boundary is replaced by a replacement pixel. The in-loop processing can also be configured to skip the pixel when the processing requires a pixel from other side of the virtual boundary. The in-loop processing can also be configured to change ALF filter shape or filter size when the in-loop processing requires a pixel from other side of the virtual boundary. A filtered output can be combined linearly or nonlinearly with the to-be- processed pixel to generate a final filter output.
摘要翻译：公开了一种重建视频的环路处理方法和装置。该方法和装置配置循环处理，使得处理不需要来自虚拟边界的另一侧的像素或缩小的像素。当被处理像素的循环处理需要来自虚拟边界的另一侧的像素时，来自虚拟边界的另一侧的像素被替换像素替代。当处理需要来自虚拟边界的另一侧的像素时，内循环处理也可以被配置为跳过像素。当循环内处理需要来自虚拟边界的另一侧的像素时，也可以将循环处理配置为改变ALF滤波器形状或滤波器大小。经滤波的输出可以与要处理的像素线性或非线性组合以产生最终的滤波器输出。

5. 发明申请

WO2011140960A1 METHOD AND APPARATUS FOR ADAPTIVE LOOP FILTERING 审中-公开
标题翻译：用于自适应环路滤波的方法和装置
公开(公告)号：WO2011140960A1
公开(公告)日：2011-11-17
申请号：PCT/CN2011/073818
申请日：2011-05-09
申请人： MEDIATEK INC. , FU, Chih-Ming , CHEN, Ching-Yeh , TSAI, Chia-Yang , HUANG, Yu-Wen , LEI, Shaw-Min
发明人： FU, Chih-Ming , CHEN, Ching-Yeh , TSAI, Chia-Yang , HUANG, Yu-Wen , LEI, Shaw-Min
IPC分类号： H04N7/26
CPC分类号： 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
摘要： A method for processing of code video using adaptive loop filtering (ALF) comprises: receiving reconstructed video data corresponding to coded video data from a processing unit; applying ALF using a candidate filter set to the reconstructed video data to generate filtered video data, wherein the candidate filter set is selected from at least two filters according to ALF set selection; and providing the filtered video data. An apparatus for processing of code video using ALF is also disclosed. The present invention can reconstruct video data adaptively, provide more flexible and/or localized processing for the filtering process, and derive respective information for the filtering process without side information.
摘要翻译：一种使用自适应环路滤波（ALF）处理码视频的方法包括：从处理单元接收对应于编码视频数据的重构视频数据; 使用对所述重建的视频数据设置的候选滤波器来应用ALF以产生滤波的视频数据，其中所述候选滤波器组根据ALF集合选择从至少两个滤波器中选择; 并提供经滤波的视频数据。还公开了一种使用ALF处理代码视频的装置。本发明可以自适应地重构视频数据，为滤波过程提供更灵活和/或局部化的处理，并且导出用于无侧信息的滤波处理的相应信息。

6. 发明申请

WO2015070772A1 METHOD OF FILTER CONTROL FOR BLOCK-BASED ADAPTIVE LOOP FILTERING 审中-公开
标题翻译：基于块式自适应环路滤波的滤波器控制方法
公开(公告)号：WO2015070772A1
公开(公告)日：2015-05-21
申请号：PCT/CN2014/090978
申请日：2014-11-13
申请人： MEDIATEK INC.
发明人： CHEN, Ching-Yeh , TSAI, Chia-Yang , HUANG, Yu-Wen
IPC分类号： H04N19/00
CPC分类号： H04N19/82 , H04N19/117 , H04N19/119 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/196 , H04N19/68 , H04N19/70
摘要： A method of adaptive loop filtering with implicit sample-based On/Off control for reconstructed video to improve the performance is disclosed. In one embodiment, each pixel of the video data associated with the reconstructed current image unit is classified into a first group and a second group. Adaptive Loop Filter (ALF) is then applied to these pixels belonging to the first group. For pixels in the second group, ALF is not applied. The image unit may correspond to one coding tree block (CTB) or one coding tree unit (CTU). Various classification means for classifying each pixel into a first group or a second group have also been disclosed. The adaptive loop filtering with implicit sample-based On/Off control may also be used as an additional mode in a system supporting block-based On/Off control.
摘要翻译：公开了一种采用基于隐含采样的开/关控制重建视频来提高性能的自适应环路滤波方法。在一个实施例中，与重建的当前图像单元相关联的视频数据的每个像素被分类为第一组和第二组。然后，将自适应环路滤波器（ALF）应用于属于第一组的这些像素。对于第二组中的像素，不应用ALF。图像单元可以对应于一个编码树块（CTB）或一个编码树单元（CTU）。还已经公开了用于将每个像素分类成第一组或第二组的各种分类装置。具有隐含采样的开/关控制的自适应环路滤波也可以用作支持基于块的开/关控制的系统中的附加模式。

7. 发明申请

WO2013113274A1 METHOD AND APPARATUS FOR LOOP FILTERING CROSS TILE OR SLICE BOUNDARIES 审中-公开
标题翻译：用于环路过滤的方法和装置跨边界或边界边界
公开(公告)号：WO2013113274A1
公开(公告)日：2013-08-08
申请号：PCT/CN2013/071108
申请日：2013-01-30
申请人： MEDIATEK INC.
发明人： HSU, Chih-Wei , TSAI, Chia-Yang , HUANG, Yu-Wen
IPC分类号： H04N7/50
CPC分类号： H04N19/124 , H04N19/117 , H04N19/14 , H04N19/154 , H04N19/174 , H04N19/176 , H04N19/82 , H04N19/86
摘要： 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 or 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.
摘要翻译：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，以跨片段或瓦片边界进行环路滤波处理。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。

8. 发明申请

WO2012155553A1 APPARATUS AND METHOD OF SAMPLE ADAPTIVE OFFSET FOR LUMA AND CHROMA COMPONENTS 审中-公开
标题翻译： LUMA和CHROMA组件的样品自适应偏移的装置和方法
公开(公告)号：WO2012155553A1
公开(公告)日：2012-11-22
申请号：PCT/CN2012/071147
申请日：2012-02-15
申请人： MEDIATEK INC. , FU, Chih-Ming , CHEN, Ching-Yeh , TSAI, Chia-Yang , HUANG, Yu-Wen , LEI, Shaw-Min
发明人： FU, Chih-Ming , CHEN, Ching-Yeh , TSAI, Chia-Yang , HUANG, Yu-Wen , LEI, Shaw-Min
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/96
摘要： A method and apparatus for processing reconstructed video using in-loop filter in a video coding system are disclosed. The method uses chroma in-loop filter indication to indicate whether chroma components are processed by in-loop filter when the luma in-loop filter indication indicates that in-loop filter processing is applied to the luma component. An additional flag may be used to indicate whether the in-loop filter processing is applied to an entire picture using same in-loop filter information or each block of the picture using individual in-loop filter information. Various embodiments according to the present invention to increase efficiency are disclosed, wherein various aspects of in-loop filter information are taken into consideration for efficient coding such as the property of quadtree -based partition, boundary conditions of a block, in-loop filter information sharing between luma and chroma components, indexing to a set of in-loop filter information, and prediction of in-loop filter information..
摘要翻译：公开了一种使用视频编码系统中的环路滤波器处理重构视频的方法和装置。该方法使用色度环路滤波器指示来指示当亮度环路滤波器指示表明将环路滤波处理应用于亮度分量时，是否通过环路滤波器处理色度分量。可以使用附加标志来指示使用相同的环路滤波器信息或使用各个循环过滤器信息的图像的每个块来将整个图像应用于环路滤波处理。公开了根据本发明的用于增加效率的各种实施例，其中考虑到环路滤波器信息的各个方面以进行有效的编码，例如四叉树分区的属性，块的边界条件，环路滤波器信息在亮度和色度分量之间共享，索引到一组环路滤波器信息，以及对环路滤波器信息的预测。

9. 发明申请

WO2012092777A1 APPARATUS AND METHOD OF SAMPLE ADAPTIVE OFFSET FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的样本自适应偏差的装置和方法
公开(公告)号：WO2012092777A1
公开(公告)日：2012-07-12
申请号：PCT/CN2011/078644
申请日：2011-08-19
申请人： MEDIATEK INC. , FU, Chih-Ming , CHEN, Ching-Yeh , TSAI, Chia-Yang , HUANG, Yu-Wen , LEI, Shaw-Min
发明人： FU, Chih-Ming , CHEN, Ching-Yeh , TSAI, Chia-Yang , HUANG, Yu-Wen , LEI, Shaw-Min
IPC分类号： H04N7/32
CPC分类号： H04N19/61 , H04N19/117 , H04N19/119 , H04N19/14 , H04N19/162 , H04N19/167 , H04N19/174 , H04N19/179 , H04N19/182 , H04N19/192 , H04N19/439 , H04N19/70 , H04N19/82 , H04N19/85 , H04N19/96
摘要： An apparatus and method for sample adaptive offset to restore intensity shift of processed video data are described. In a video coding system, the video data are subject to various processing such as prediction, transformation, quantization, deblocking, and adaptive loop filtering. Along the processing path in the video coding system, certain characteristics of the processed video data may be altered from the original video data due to the operations applied to video data. For example, the mean value of the processed video may be shifted. Therefore, the pixel intensity shift has to be carefully compensated or restored to alleviate the artifacts. Accordingly a sample adaptive offset scheme is disclosed that can take into consideration of the dynamic characteristics within a frame using a region partition scheme. Furthermore, the sample adaptive offset scheme also supports multiple sample adaptive offset types that can be tailored to the characteristics of processed video data and achieves better quality.
摘要翻译：描述了用于恢复处理的视频数据的强度偏移的采样自适应偏移的装置和方法。在视频编码系统中，视频数据经受诸如预测，变换，量化，去块和自适应环路滤波的各种处理。沿着视频编码系统中的处理路径，由于应用于视频数据的操作，处理的视频数据的某些特性可能会从原始视频数据中改变。例如，处理的视频的平均值可能被移位。因此，必须仔细地补偿或恢复像素强度偏移以减轻伪影。因此，公开了可以使用区域分区方案考虑帧内的动态特性的样本自适应偏移方案。此外，样本自适应偏移方案还支持多个样本自适应偏移类型，可以根据处理的视频数据的特性进行调整，并实现更好的质量。

10. 发明申请

WO2012045270A1 METHOD AND APPARATUS OF ADAPTIVE LOOP FILTERING 审中-公开
标题翻译：自适应环路滤波的方法与装置
公开(公告)号：WO2012045270A1
公开(公告)日：2012-04-12
申请号：PCT/CN2011/080431
申请日：2011-09-30
申请人： MEDIATEK INC. , TSAI, Chia-Yang , FU, Chih-Ming , CHEN, Ching-Yeh , HUANG, Yu-Wen , LEI, Shaw-Min
发明人： TSAI, Chia-Yang , FU, Chih-Ming , CHEN, Ching-Yeh , HUANG, Yu-Wen , LEI, Shaw-Min
IPC分类号： H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/119 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/439 , H04N19/80
摘要： A method and apparatus for processing in-loop reconstructed video using an in-loop filter is disclosed. In the recent HEVC development, adaptive loop filtering (ALF) is being adopted to process in-loop reconstruction video data, where ALF can be selectively turned ON or OFF for each block in a frame or a slice. An advanced ALF is disclosed later that allows a choice of multiple filter sets that can be applied to the reconstructed video data adaptively. In the present disclosure, pixels of the in-loop reconstructed video data are divided into a plurality of to-be-filtered regions, and an in-loop filter from a filter set is determined for each to-be-filtered region based on a rate-distortion optimization procedure. According to one embodiment of the present invention, computation of cost function associated with the rate-distortion optimization procedure is related to correlation values associated with original video data and the in-loop reconstructed video data. Furthermore, the correlation values can be shared by the multiple candidate filters during the rate-distortion optimization procedure for said each to-be-filtered region. In another embodiment, the correlation values can be shared by multiple candidate to-be-filtered regions of an area of the in-loop reconstructed video data during the rate-distortion optimization procedure for the area of the in-loop reconstructed video data.
摘要翻译：公开了一种使用环路滤波器来处理环路重建视频的方法和装置。在最近的HEVC开发中，正在采用自适应环路滤波（ALF）来处理环路重建视频数据，其中ALF可以针对帧或片中的每个块选择性地打开或关闭。稍后公开了一种先进的ALF，其允许选择可以自适应地应用于重建的视频数据的多个滤波器组。在本公开中，环路内重建的视频数据的像素被划分成多个要被滤波的区域，并且基于一个滤波器组确定针对每个被过滤区域的滤波器组的环路滤波器速率失真优化程序。根据本发明的一个实施例，与速率失真优化过程相关联的成本函数的计算与与原始视频数据和环路内重建视频数据相关联的相关值相关。此外，在针对所述每个待被过滤的区域的速率失真优化过程期间，相关值可由多个候选滤波器共享。在另一个实施例中，相关值可以在针对环路内重建的视频数据的区域的速率失真优化过程期间由循环内重构视频数据的区域的多个候选被被滤波区域共享。

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