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51. 发明申请

US20120177107A1 Apparatus and Method of Sample Adaptive Offset for Video Coding 有权
标题翻译：用于视频编码的样本自适应偏移的装置和方法
公开(公告)号：US20120177107A1
公开(公告)日：2012-07-12
申请号：US13158427
申请日：2011-06-12
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 , H04N7/40
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 SAO types that can be tailored to the characteristics of processed video data and achieve 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，视频数据经历诸如预测，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种SAO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。

52. 发明申请

US20120177103A1 APPARATUS AND METHOD OF EFFICIENT SAMPLE ADAPTIVE OFFSET 有权
标题翻译：装置和方法的有效样品自适应偏差
公开(公告)号：US20120177103A1
公开(公告)日：2012-07-12
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
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。

53. 发明申请

US20120134416A1 Method and Apparatus for Derivation of MV/MVP Candidate for Inter/Skip/Merge Modes 有权
标题翻译：用于跨越/跳过/合并模式的MV / MVP候选者的推导方法和装置
公开(公告)号：US20120134416A1
公开(公告)日：2012-05-31
申请号：US13206891
申请日：2011-08-10
申请人： Jian-Liang Lin , Yu-Pao Tsai , Yi-Wen Chen , Yu-Wen Huang , Shaw-Min Lei
发明人： Jian-Liang Lin , Yu-Pao Tsai , Yi-Wen Chen , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/52
摘要： A method and apparatus for deriving a temporal motion vector predictor (MVP) are disclosed. The MVP is derived for a current block of a current picture in Inter, or Merge, or Skip mode based on co-located reference blocks of a co-located block. The co-located reference blocks comprise an above-left reference block of the bottom-right neighboring block of the co-located block. The reference motion vectors associated with the co-located reference blocks are received and used to derive the temporal MVP. Various configurations of co-located reference blocks can be used to practice the present invention. If the MVP cannot be found based on the above-left reference block, search for the MVP can be continued based on other co-located reference blocks. When an MVP is found, the MVP is checked against the previously found MVP. If the MVP is the same as the previously found MVP, the search for MVP continues.
摘要翻译：公开了用于导出时间运动矢量预测器（MVP）的方法和装置。基于同位置块的同位置参考块，针对Inter或当前图像的当前块导出MVP，或合并或跳跃模式。共同定位的参考块包括同位置块的右下相邻块的左上参考块。与同位置参考块相关联的参考运动矢量被接收并用于导出时间MVP。可以使用共同定位的参考块的各种配置来实施本发明。如果基于上述左参考块不能找到MVP，则可以基于其他同位置参考块继续搜索MVP。当找到MVP时，将针对先前发现的MVP检查MVP。如果MVP与以前发现的MVP相同，则继续搜索MVP。

54. 发明申请

US20120106624A1 Method and Apparatus of Slice Boundary Filtering for High Efficiency Video Coding 有权
标题翻译：用于高效率视频编码的切片边界滤波的方法和装置
公开(公告)号：US20120106624A1
公开(公告)日：2012-05-03
申请号：US12978490
申请日：2010-12-24
申请人： Yu-Wen Huang , Chih-Ming Fu , Ching-Yeh Chen , Chih-Wei Hsu , Shan Liu , Shaw-Min Lei
发明人： Yu-Wen Huang , Chih-Ming Fu , Ching-Yeh Chen , Chih-Wei Hsu , Shan Liu , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/439 , H04N19/115 , H04N19/117 , H04N19/136 , H04N19/174 , H04N19/436 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/86
摘要： An apparatus and method for video coding having intra-slice deblocking, intra-slice adaptive loop filter, and intra-slice adaptive offset are disclosed. In a video coding system, a picture is often divided into slices and each slice is independently processed so that errors or missing data from one slice cannot propagate to any other slice within the picture. In the recent high efficiency video coding (HEVC) development, deblock filtering (DF), adaptive loop filter (ALF) and adaptive offset (AO) may be applied to reconstructed slices. When the processing is applied across slice boundaries, it may rely on pixels outside the current slice and cause dependency of the current slice on other slice(s). Consequently, the DF/ALF/AO processing on a reconstructed slice may have to wait until the reconstructed slices that it is dependent from complete the DF/ALF/AO processing. To overcome the slice boundary issue, intra-slice DF/ALF/AO is developed that does not rely on any pixel outside the currently slice. An optional slice boundary filter may be applied to slice boundaries after all slices are processed by the intra-slice DF/ALF/AO.
摘要翻译：公开了一种具有片内解块，片内自适应环路滤波器和片内自适应偏移的视频编码的装置和方法。在视频编码系统中，图像通常被分成片，并且每个片被独立地处理，使得来自一个片的错误或丢失的数据不能传播到图片内的任何其他片。在最近的高效率视频编码（HEVC）开发中，解块滤波（DF），自适应环路滤波器（ALF）和自适应偏移（AO）可以应用于重构的片段。当跨越切片边界应用处理时，它可以依赖于当前切片外部的像素，并且导致当前切片对其他切片的依赖。因此，在重构的切片上的DF / ALF / AO处理可能必须等待直至重构的切片依赖于完成DF / ALF / AO处理。为了克服切片边界问题，开发了片内DF / ALF / AO，其不依赖于当前切片之外的任何像素。在片内DF / ALF / AO处理所有片段之后，可选择的片边界滤波器可应用于片边界。

55. 发明申请

US20120082241A1 Method and Apparatus of Adaptive Loop Filtering 有权
标题翻译：自适应环路滤波的方法与装置
公开(公告)号：US20120082241A1
公开(公告)日：2012-04-05
申请号：US13216242
申请日：2011-08-24
申请人： Chia-Yang Tsai , Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang , Shaw-Min Lei
发明人： Chia-Yang Tsai , Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang , Shaw-Min Lei
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。

56. 发明申请

US20120027097A1 METHOD FOR PERFORMING LOCALIZED MULTIHYPOTHESIS PREDICTION DURING VIDEO CODING OF A CODING UNIT, AND ASSOCIATED APPARATUS 有权
标题翻译：在编码单元的视频编码期间执行本地化多媒体预测的方法及相关设备
公开(公告)号：US20120027097A1
公开(公告)日：2012-02-02
申请号：US13270249
申请日：2011-10-11
申请人： Jian-Liang Lin , Yu-Pao Tsai , Shaw-Min Lei
发明人： Jian-Liang Lin , Yu-Pao Tsai , Shaw-Min Lei
IPC分类号： H04N7/32
CPC分类号： H04N19/139 , H04N19/513 , H04N19/52 , H04N19/56
摘要： A method for performing localized multihypothesis prediction during video coding of a coding unit includes processing the coding unit. More particularly, the step of processing the coding unit further includes: obtaining at least two sets of motion information derived from a set of coded units for multihypothesis motion compensation of the coding unit; and utilizing a linear combination of a plurality of pixel values derived from the at least two sets of motion information derived from the set of coded units as a predicted pixel value of the coding unit. An associated apparatus is also provided.
摘要翻译：一种用于在编码单元的视频编码期间执行局部多假设预测的方法包括处理编码单元。更具体地，处理编码单元的步骤还包括：从编码单元的多个假设运动补偿的一组编码单元中获取至少两组运动信息; 并且利用从所述编码单元组导出的所述至少两组运动信息导出的多个像素值的线性组合作为所述编码单元的预测像素值。还提供了一种相关联的装置。

57. 发明申请

US20110176613A1 Motion Prediction Method and Video Encoding Method 有权
标题翻译：运动预测方法和视频编码方法
公开(公告)号：US20110176613A1
公开(公告)日：2011-07-21
申请号：US12962411
申请日：2010-12-07
申请人： Yu-Pao Tsai , Chih-Ming Fu , Jian-Liang Lin , Yu-Wen Huang , Shaw-Min Lei
发明人： Yu-Pao Tsai , Chih-Ming Fu , Jian-Liang Lin , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N11/02
CPC分类号： H04N19/56 , H04N19/172 , H04N19/513
摘要： The invention provides a motion prediction method. First, a plurality of motion vector predictors is obtained to be included in a candidate set for motion prediction of a current unit of a current frame. Whether the current frame is a non-reference frame which is not referred to by other frames for motion prediction is then determined. When the current frame is not the non-reference frame, any motion vector predictor corresponding to a previously coded frame is removed from the candidate set, and a motion vector of the current unit is predicted according to the motion vector predictors of the candidate set.
摘要翻译：本发明提供一种运动预测方法。首先，获得将多个运动矢量预测器包括在当前帧的当前单位的运动预测的候选集中。然后确定当前帧是否是用于运动预测的其他帧不参考的非参考帧。当当前帧不是非参考帧时，从候选组中去除对应于先前编码帧的任何运动矢量预测器，并且根据候选组的运动矢量预测器来预测当前单位的运动矢量。

58. 发明申请

US20110176611A1 METHODS FOR DECODER-SIDE MOTION VECTOR DERIVATION 审中-公开
标题翻译：解码器运动矢量衍生方法
公开(公告)号：US20110176611A1
公开(公告)日：2011-07-21
申请号：US12826693
申请日：2010-06-30
申请人： Yu-Wen Huang , Yu-Pao Tsai , Chih-Ming Fu , Shaw-Min Lei
发明人： Yu-Wen Huang , Yu-Pao Tsai , Chih-Ming Fu , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/523 , H04N19/46 , H04N19/56
摘要： An exemplary method for decoder-side motion vector derivation (DMVD) includes: checking a block size of a current block to be encoded and accordingly generating a checking result; and utilizing a DMVD module to refer to the checking result to control conveyance of first DMVD control information which is utilized for indicating whether a DMVD coding operation is employed to encode the current block. When the checking result indicates a predetermined criterion is satisfied, the first DMVD control information is sent in a bitstream; otherwise, the first DMVD control information is not sent.
摘要翻译：解码器侧运动矢量导出（DMVD）的示例性方法包括：检查要编码的当前块的块大小，从而生成检查结果; 并且利用DMVD模块来参考检查结果来控制用于指示是否采用DMVD编码操作对当前块进行编码的第一DMVD控制信息的传送。当检查结果指示预定标准被满足时，第一DMVD控制信息以比特流发送; 否则，不发送第一DMVD控制信息。

59. 发明申请

US20100074323A1 ADAPTIVE FILTER 有权
标题翻译：自适应滤光片
公开(公告)号：US20100074323A1
公开(公告)日：2010-03-25
申请号：US12405216
申请日：2009-03-16
申请人： Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei , Xun Guo
发明人： Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei , Xun Guo
IPC分类号： H04N7/12
CPC分类号： H04N19/523 , H04N19/117 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/433 , H04N19/436 , H04N19/46 , H04N19/82 , H04N19/86
摘要： A video encoder that utilizes adaptive loop filtering for coding video data includes: a prediction unit, for performing prediction techniques according to original video data and reconstructed video data to generate predicted samples; a reconstruction unit, for reconstructing the predicted samples to form the reconstructed video data; a reference picture buffer, for storing the reconstructed video data; a filter parameter estimator, for estimating filter parameters according to the original video data and the reconstructed video data; and an adaptive filter, for utilizing the stored filter parameters to perform filtering on the reconstructed video data.
摘要翻译：利用自适应环路滤波对视频数据进行编码的视频编码器包括：预测单元，用于根据原始视频数据和重建的视频数据执行预测技术以产生预测样本; 重建单元，用于重构所述预测样本以形成重建的视频数据; 用于存储重构的视频数据的参考图像缓冲器; 滤波器参数估计器，用于根据原始视频数据和重建的视频数据估计滤波器参数; 以及自适应滤波器，用于利用所存储的滤波器参数对重构的视频数据执行滤波。

60. 发明申请

US20090154567A1 IN-LOOP FIDELITY ENHANCEMENT FOR VIDEO COMPRESSION 审中-公开
标题翻译： IN-LOOP FIDELITY增强视频压缩
公开(公告)号：US20090154567A1
公开(公告)日：2009-06-18
申请号：US12203933
申请日：2008-09-04
申请人： Shaw-Min Lei , Yu-Wen Huang , Xun Guo
发明人： Shaw-Min Lei , Yu-Wen Huang , Xun Guo
IPC分类号： H04N7/26
CPC分类号： H04N19/82 , H04N19/46 , H04N19/61 , H04N19/86 , H04N19/865 , H04N19/91 , H04N19/96
摘要： 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 the video frame utilizing a quad-tree partition, and generating fidelity enhancement information including a parameter associated with the quad-tree partition structure; 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.
摘要翻译：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，用于使用四叉树分区在视频帧上执行保真度增强技术，以及生成保真度增强信息，其包括与四叉树分割结构; 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。

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