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1. 发明申请

US20140003495A1 Method and Apparatus of Scalable Video Coding 有权
标题翻译：可扩展视频编码的方法和装置
公开(公告)号：US20140003495A1
公开(公告)日：2014-01-02
申请号：US14005555
申请日：2012-05-31
申请人： Tzu-Der Chuang , Ching-Yeh Chen , Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
发明人： Tzu-Der Chuang , Ching-Yeh Chen , Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/51 , H04N19/119 , H04N19/30 , H04N19/33 , H04N19/463 , H04N19/517 , H04N19/52
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 vector predictor (MVP) 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：公开了一种用于可缩放视频编码的方法和装置，其中将视频数据配置为基本层（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，运动矢量预测器（MVP）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）采样自适应偏移（SAO）和去块滤波器。

2. 发明授权

US09860528B2 Method and apparatus of scalable video coding 有权
公开(公告)号：US09860528B2
公开(公告)日：2018-01-02
申请号：US14005555
申请日：2012-05-31
申请人： Tzu-Der Chuang , Ching-Yeh Chen , Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
发明人： Tzu-Der Chuang , Ching-Yeh Chen , Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12 , H04N19/107 , H04N19/52 , H04N19/119 , H04N19/463 , H04N19/33 , H04N19/51 , H04N19/30 , H04N19/517
CPC分类号： H04N19/51 , H04N19/119 , H04N19/30 , H04N19/33 , H04N19/463 , H04N19/517 , H04N19/52
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 vector predictor (MVP) 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.

3. 发明申请

US20120114034A1 Method and Apparatus of Delta Quantization Parameter Processing for High Efficiency Video Coding 审中-公开
标题翻译：用于高效率视频编码的Delta量化参数处理方法与装置
公开(公告)号：US20120114034A1
公开(公告)日：2012-05-10
申请号：US13018431
申请日：2011-02-01
申请人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Yu-Lin Chang , Tzu-Der Chuang , Shaw-Min Lei
发明人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Yu-Lin Chang , Tzu-Der Chuang , Shaw-Min Lei
IPC分类号： H04N7/12
CPC分类号： H04N19/174 , H04N19/103 , H04N19/119 , H04N19/126 , H04N19/13 , H04N19/146 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/463 , H04N19/70 , H04N19/96
摘要： In the current high efficiency video coding development, each LCU has its own quantization parameter (QP) and the difference between a current QP and a reference QP is transmitted instead of the QP value itself. Since the LCU is much larger than the macroblock of AVC/H.264, using one delta QP per LCU may cause rate control unable to adapt to the bitrate quickly enough. Consequently there is a need to adopt delta QP in units smaller than LCU to provide more granular rate control. Furthermore, it is desirable to develop a system that is capable of facilitating more flexible delta QP. Accordingly, adaptive quantization parameter processing is disclosed where a QP minimum CU size for incorporating or deriving a delta QP is indicated selectively in the slice level or in the sequence/picture level. In one variation, the delta QP is incorporated or derived only if nonzero quantized transform coefficients exist in a leaf CU that is larger than the QP minimum CU size. In another variation, quantization parameter information is only incorporated or derived when a leaf CU has any nonzero quantized transform coefficient. In yet another variation, a flag is used to indicate whether one delta QP per LCU is transmitted if the LCU has any nonzero quantized transform coefficient or one delta QP per leaf CU is transmitted if the leaf CU has any nonzero quantized transform coefficient.
摘要翻译：在当前的高效率视频编码开发中，每个LCU具有其自己的量化参数（QP），并且发送当前QP与参考QP之间的差异而不是QP值本身。由于LCU比AVC / H.264的宏块大得多，因此使用每个LCU的一个delta QP可能导致速率控制不能足够快地适应比特率。因此，需要采用小于LCU的单位的delta QP来提供更细粒度的速率控制。此外，期望开发能够促进更灵活的delta QP的系统。因此，公开了自适应量化参数处理，其中用于合并或导出增量QP的QP最小CU尺寸在片级或序列/画面级别中有选择地表示。在一个变型中，只有当非零量化变换系数存在于大于QP最小CU尺寸的叶CU中时，才加入或推导增量QP。在另一个变型中，当叶CU具有任何非零量化变换系数时，仅结合或导出量化参数信息。在又一个变型中，如果LCU具有任何非零量化变换系数，或者如果叶CU具有任何非零量化变换系数，则发送每个叶CU，则发送每个LCU一个ΔQP是否被发送的标志。

4. 发明授权

US09094658B2 Method and apparatus of adaptive loop filtering 有权
标题翻译：自适应环路滤波的方法和装置
公开(公告)号：US09094658B2
公开(公告)日：2015-07-28
申请号：US13093068
申请日：2011-04-25
申请人： Chih-Ming Fu , Ching-Yeh Chen , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Ching-Yeh Chen , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： 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： In a block-based motion compensated system, coding noises may arise due to lossy operations such as quantization. Deblocking is often used to alleviate visibility of coding artifacts by applying filtering across block boundaries adaptively. In the recent HEVC development, adaptive loop filtering (ALF) is being adopted to process deblocked reconstruction frames. Adaptive loop filtering is applied to reconstructed video data across multiple frames to reduce visibility of coding artifacts in the temporal domain. In a HEVC system, conventional ALF can be selectively turned ON or OFF for each block in a frame or a slice. The advanced ALF disclosed here allows a choice of multiple filter sets that can be applied to the reconstructed video data adaptively. Furthermore, the advanced ALF adopts a new unit for the filtering process to apply so that more flexible and/or localized processing can be provided. Furthermore, the advanced ALF allows a decoder to derive respective information for applying the filtering process without side information.
摘要翻译：在基于块的运动补偿系统中，由于诸如量化的有损操作，可能会产生编码噪声。解块通常用于通过自适应地跨越块边界应用过滤来减轻编码伪像的可视性。在最近的HEVC开发中，正在采用自适应环路滤波（ALF）来处理解块重建帧。自适应环路滤波被应用于跨多帧的重建视频数据，以减少时域中编码伪像的可见性。在HEVC系统中，对于帧或片中的每个块，可以选择性地将常规ALF打开或关闭。这里公开的高级ALF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。此外，先进的ALF采用新的过滤单元进行应用，从而可以提供更灵活和/或本地化的处理。此外，高级ALF允许解码器导出用于应用无侧信息的过滤处理的相应信息。

5. 发明申请

US20130322523A1 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：US20130322523A1
公开(公告)日：2013-12-05
申请号：US13985564
申请日：2012-04-19
申请人： Yu-Wen Huang , Chia-Yang Tsai , Ching-Yeh Chen , Chih-Ming Fu , Shaw-Min Lei
发明人： Yu-Wen Huang , Chia-Yang Tsai , Ching-Yeh Chen , Chih-Ming Fu , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/46 , H04N19/117 , H04N19/132 , H04N19/134 , H04N19/182 , H04N19/423 , 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：公开了重建视频的环路处理方法和装置。该方法和装置配置环路内处理，使得处理不需要来自虚拟边界的另一侧的像素或缩小像素。当待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，也可以配置循环处理以跳过像素。当内循环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。

6. 发明申请

US20130208804A1 Method and Apparatus for Parsing Error Robustness of Temporal Motion Vector Prediction 有权
标题翻译：用于分析时间运动矢量预测误差鲁棒性的方法和装置
公开(公告)号：US20130208804A1
公开(公告)日：2013-08-15
申请号：US13879903
申请日：2012-01-19
申请人： Jian-Liang Lin , Yi-Wen Chen , Yu-Wen Huang , Chih-Ming Fu , Chi-Ling Wu , Yu-Pao Tsai , Ching-Yeh Chen , Shaw-Min Lei
发明人： Jian-Liang Lin , Yi-Wen Chen , Yu-Wen Huang , Chih-Ming Fu , Chi-Ling Wu , Yu-Pao Tsai , Ching-Yeh Chen , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/109 , H04N19/119 , H04N19/139 , H04N19/147 , H04N19/174 , H04N19/177 , H04N19/184 , H04N19/52 , H04N19/567 , H04N19/593 , H04N19/615 , H04N19/65 , H04N19/70 , H04N19/895
摘要： A method and apparatus for deriving a motion vector predictor (MVP) are disclosed. The MVP is selected from spatial MVP and temporal MVP candidates. The method uses a flag to indicate whether temporal MVP candidates are disabled. If the flag indicates that the temporal MVP candidates are disabled, the MVP is derived from the spatial MVP candidates only. Otherwise, the MVP is derived from the spatial and temporal MVP candidates. The method may further skip spatial redundant MVP removal by comparing MV values. Furthermore, the parsing error robustness scheme determines a forced temporal MVP when a temporal MVP is not available and the temporal MVP candidates are allowed as indicated by the flag. The flag may be incorporated in sequence, picture, slice level, or a combination of these levels.
摘要翻译：公开了一种用于导出运动矢量预测器（MVP）的方法和装置。 MVP从空间MVP和时间MVP候选中选择。该方法使用标志来指示是否禁用时间MVP候选。如果标志指示时间MVP候选被禁用，则MVP仅从空间MVP候选导出。否则，MVP是从空间和时间MVP候选导出的。该方法可以通过比较MV值来进一步跳过空间冗余MVP去除。此外，解析误差鲁棒性方案在时间MVP不可用时确定强制时间MVP，并且如标志所指示的那样允许时间MVP候选。标志可以按序列，图片，切片级别或这些级别的组合来合并。

7. 发明授权

US09161041B2 Apparatus and method of efficient sample adaptive offset 有权
标题翻译：高效采样自适应偏移的装置和方法
公开(公告)号：US09161041B2
公开(公告)日：2015-10-13
申请号：US13177424
申请日：2011-07-06
申请人： Chih-Ming Fu , Ching-Yeh Chen , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Ching-Yeh Chen , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26 , H04N19/117 , H04N19/82 , H04N19/176 , H04N19/147 , H04N19/14 , H04N19/182 , H04N19/136 , H04N19/86 , H04N19/61 , H04N19/85
CPC分类号： H04N19/117 , H04N19/136 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/61 , H04N19/82 , H04N19/85 , H04N19/86
摘要： For sample adaptive offset, classification may be used to classify the pixels into multiple categories and pixels in each category are offset compensated using an offset value for the category. The classification may be based on values of the current pixel and its neighboring pixels before SAO compensation. Therefore, the SAO compensated pixel cannot be written back to the current pixel location until the category for all pixels are determined. An embodiment of the present invention stores the relation between the current pixel and said one or more neighboring pixels 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. Rate-distortion optimization (RDO) is often used to guide the mode decision, such as region splitting/region merging decision. Computations associated with the RDO process usually are very computational intensive. Accordingly, distortion reduction estimation is developed which can substantially reduce the required computation associated with RDO.
摘要翻译：对于样本自适应偏移，可以使用分类来将像素分类为多个类别，并且使用该类别的偏移值来对每个类别中的像素进行偏移补偿。分类可以基于SAO补偿之前的当前像素及其相邻像素的值。因此，在确定所有像素的类别之前，SAO补偿像素不能被写回到当前像素位置。本发明的实施例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代替当前像素，而不缓冲待处理像素用于分类。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。速率失真优化（RDO）经常用于指导模式决策，如区域分割/区域合并决策。与RDO过程相关的计算通常是非常计算密集型的。因此，开发了可以显着减少与RDO相关联的所需计算的失真减小估计。

8. 发明授权

US09001883B2 Method and apparatus for slice common information sharing 有权
标题翻译：切片共同信息共享的方法和装置
公开(公告)号：US09001883B2
公开(公告)日：2015-04-07
申请号：US13298294
申请日：2011-11-17
申请人： Chia-Yang Tsai , Chih-Wei Hsu , Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Shaw-Min Lei
发明人： Chia-Yang Tsai , Chih-Wei Hsu , Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Shaw-Min Lei
IPC分类号： H04N7/50 , H04N19/86 , H04N19/70 , H04N19/172 , H04N19/117 , H04N19/174 , H04N7/26 , H04N19/82
CPC分类号： H04N19/117 , H04N19/136 , H04N19/172 , H04N19/174 , H04N19/70 , H04N19/82 , H04N19/86
摘要： A method and apparatus for sharing information in a video coding system are disclosed. Embodiments according to the present invention use an information sharing flag to determine whether to share in-loop filter information in the picture level. The information sharing flag may be incorporated in the sequence level, the picture level or the slice level to indicate whether information sharing is enabled. Multiple information sharing flags may also be used to adaptively control information sharing. Furthermore, method and apparatus of using multiple Adaptation Parameter Sets (APSs) for information sharing of in-loop filters are disclosed. APS identifiers of in-loop filters may be incorporated in the slice header to allow each of the in-loop filters select respective filter information from the multiple APSs. A flag is incorporated in SPS to indicate whether multiple APS or single APS is used. Various exemplary syntax designs are disclosed to illustrate information sharing.
摘要翻译：公开了一种用于在视频编码系统中共享信息的方法和装置。根据本发明的实施例使用信息共享标志来确定是否在图像级别中共享环路滤波器信息。信息共享标志可以并入在序列级别，画面级或片级中，以指示是否启用信息共享。也可以使用多个信息共享标志来自适应地控制信息共享。此外，公开了使用多个适配参数集（APS）进行环路滤波器信息共享的方法和装置。环路滤波器的APS标识符可以并入片标头中，以允许每个环路滤波器从多个APS中选择相应的滤波器信息。 SPS中包含一个标志，以指示是否使用多个APS或单个APS。公开各种示例性语法设计来说明信息共享。

9. 发明申请

US20120294353A1 Apparatus and Method of Sample Adaptive Offset for Luma and Chroma Components 审中-公开
标题翻译：用于亮度和色度分量的样本自适应偏移的装置和方法
公开(公告)号：US20120294353A1
公开(公告)日：2012-11-22
申请号：US13311953
申请日：2011-12-06
申请人： Chih-Ming Fu , Ching-Yeh Chen , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Ching-Yeh Chen , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12
CPC分类号： H04N19/82 , H04N19/117 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/463 , H04N19/70 , 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提高效率的各种实施例，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，例如基于四叉树的分区的属性，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。

10. 发明申请

US20120106622A1 Method and Apparatus of Slice Grouping for High Efficiency Video Coding 审中-公开
标题翻译：用于高效率视频编码的片段分组方法和装置
公开(公告)号：US20120106622A1
公开(公告)日：2012-05-03
申请号：US12984727
申请日：2011-01-05
申请人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Shaw-Min Lei
发明人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/426 , H04N19/129 , H04N19/14 , H04N19/174
摘要： In the H.264/AVC standard, one of the new characteristics is the possibility of dividing an image in regions called slice groups. The use of slice groups provides various possible advantages such as prioritized transmission, error resilient transmission, and etc. The slice groups can be formed by flexible macroblock ordering (FMO), where each picture can be divided into slice groups in different scan patterns of the macroblocks. In the high efficiency video coding (HEVC) under development, a more flexible block structure, called coding unit (CU), is used as the unit to process video data. The picture is first divided into largest CUs (LCUs) and each LCU is adaptively split into smaller CUs using a quadtree until leaf CUs are reached. In the current HEVC development, there is neither slice nor slice group structure being considered. The LCU size used for HEVC is 16 times as large as the macroblock size used in the H.264/AVC standard. Therefore, it is very desirable to develop slice and slice group structure suited for HEVC to offer various benefits of error resilience, parallel processing, reduced line (row) buffer requirement, and etc. Accordingly, slice group types including raster scan type, vertical stripe type, regions of interest type and full flexibility type are developed for HEVC. Furthermore, various syntax elements are incorporated in the sequence header or the picture header to convey information associated with the slice group structure.
摘要翻译：在H.264 / AVC标准中，新特性之一是在称为片组的区域中划分图像的可能性。切片组的使用提供了各种可能的优点，例如优先传输，错误弹性传输等。切片组可以通过灵活的宏块排序（FMO）形成，其中每个图像可以被分成不同扫描模式的切片组宏块。在正在开发的高效率视频编码（HEVC）中，使用称为编码单元（CU）的更灵活的块结构作为处理视频数据的单元。该图片首先划分为最大的CU（LCU），并且使用四叉树将每个LCU自适应地分割成较小的CU，直到达到叶CU。在目前的HEVC开发中，既没有考虑切片也没有切片组结构。用于HEVC的LCU大小是H.264 / AVC标准中使用的宏块尺寸的16倍。因此，非常希望开发适用于HEVC的切片和切片组结构，以提供错误恢复，并行处理，减少线（行）缓冲器要求等各种优点。因此，包括光栅扫描类型，垂直条纹类型，兴趣类型和全柔性类型为HEVC开发。此外，各种语法元素被并入到序列头或图像头中以传送与切片组结构相关联的信息。

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