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91. 发明授权

US09609346B2 Method and apparatus for deriving temporal motion vector prediction 有权
公开(公告)号：US09609346B2
公开(公告)日：2017-03-28
申请号：US13236422
申请日：2011-09-19
申请人： Jian-Liang Lin , Yu-Pao Tsai , Yi-Wen Chen , Jicheng An , Yu-Wen Huang , Shaw-Min Lei
发明人： Jian-Liang Lin , Yu-Pao Tsai , Yi-Wen Chen , Jicheng An , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N19/56 , H04N19/513 , H04N19/52 , H04N19/57 , H04N19/583
CPC分类号： H04N19/513 , H04N19/105 , H04N19/176 , H04N19/46 , H04N19/52 , H04N19/56 , H04N19/57 , H04N19/583
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 and a flag is used to indicate the co-located picture. More than one co-located reference blocks can be used to derive the temporal MVP and the co-located reference blocks can be selected from the co-located block as well as neighboring blocks of the co-located block. A search set comprises search motion vectors associated with the co-located reference block(s) is formed. The search motion vector (MV) corresponding to the co-located reference block in the same reference list is searched before the search MV in a different reference list. Various schemes to accommodate implicit method of deriving co-located picture are also disclosed.

92. 发明授权

US09596483B2 Method and apparatus of improved intra luma prediction mode coding 有权
标题翻译：改进的内部亮度预测模式编码的方法和装置
公开(公告)号：US09596483B2
公开(公告)日：2017-03-14
申请号：US13198697
申请日：2011-08-04
申请人： Mei Guo , Xun Guo , Shaw-Min Lei
发明人： Mei Guo , Xun Guo , Shaw-Min Lei
IPC分类号： H04N19/593 , H04N19/159 , H04N19/196 , H04N19/463 , H04N19/11
CPC分类号： H04N19/593 , H04N19/11 , H04N19/159 , H04N19/196 , H04N19/463
摘要： A method and apparatus for improved intra prediction mode coding are disclosed. Intra prediction exploits the spatial correlation within a picture or within a picture region. In High-Efficiency Video Coding (HEVC), a coding scheme for the intra luma prediction mode is considered, where the intra prediction mode of a current block is compared with the minimum of two intra luma prediction modes corresponding to two neighboring blocks. If the intra prediction mode of the current block is the same as the minimum of the two neighboring intra luma prediction modes, a single bit is transmitted to indicate the case. Otherwise, information for the current intra prediction mode is transmitted in fixed-length codeword. The present invention provides multiple intra prediction mode candidates based on neighboring intra prediction modes so that there is a better chance for predictor hit. Accordingly, improved coding efficiency is achieved.
摘要翻译：公开了一种用于改进帧内预测模式编码的方法和装置。帧内预测利用图片内或图片区域内的空间相关性。在高效率视频编码（HEVC）中，考虑了用于帧内预测模式的编码方案，其中将当前块的帧内预测模式与对应于两个相邻块的两个内部亮度预测模式的最小值进行比较。如果当前块的帧内预测模式与两个相邻帧内亮度预测模式的最小值相同，则发送单个位以指示该情况。否则，以固定长度的码字发送当前帧内预测模式的信息。本发明提供了基于相邻帧内预测模式的多个帧内预测模式候选，使得预测器命中的机会更好。因此，实现了改进的编码效率。

93. 发明授权

US09185430B2 Deblocking filtering method and deblocking filter 有权
标题翻译：去块滤波方法和去块滤波器
公开(公告)号：US09185430B2
公开(公告)日：2015-11-10
申请号：US12981430
申请日：2010-12-29
申请人： Jicheng An , Yongying Gao , Shaw-Min Lei
发明人： Jicheng An , Yongying Gao , Shaw-Min Lei
IPC分类号： H04N19/86 , H04N19/159 , H04N19/176 , H04N19/102 , H04N19/117 , H04N19/186
CPC分类号： H04N19/86 , H04N19/102 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/186
摘要： An exemplary deblocking filtering method includes checking if at least one of two adjacent blocks is an intra-coded block and accordingly generating a checking result; and applying a deblocking filtering scheme with a clipping range to the two adjacent blocks by a deblocking filtering circuit as long as the checking result indicates that at least one of the two adjacent blocks is the intra-coded block.
摘要翻译：示例性的去块滤波方法包括：检查两个相邻块中的至少一个是帧内编码块，从而生成检查结果; 并且只要检查结果指示两个相邻块中的至少一个是帧内编码块，则通过去块滤波电路将具有削波范围的去块滤波方案应用于两个相邻块。

94. 发明授权

US09124898B2 Method and apparatus of temporal motion vector prediction 有权
标题翻译：时间运动矢量预测的方法和装置
公开(公告)号：US09124898B2
公开(公告)日：2015-09-01
申请号：US13039555
申请日：2011-03-03
申请人： Yu-Pao Tsai , Jian-Liang Lin , Yu-Wen Huang , Shaw-Min Lei
发明人： Yu-Pao Tsai , Jian-Liang Lin , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26 , H04N19/577 , H04N19/51 , H04N19/52 , H04N19/61
CPC分类号： H04N19/577 , H04N19/109 , H04N19/176 , H04N19/52 , H04N19/61
摘要： An apparatus and method for motion vector prediction for a current block in a picture are disclosed. In video coding systems, the spatial and temporal redundancy is exploited using spatial and temporal prediction to reduce the information to be transmitted. Motion Vector Prediction (MVP) has been used to further conserve the bitrate associated with motion vector. In conventional temporal MVP, the predictor is often based on a single candidate such as the co-located motion vector in the previous frame/picture. If the co-located motion vector in the previous frame/picture does not exist, the predictor for the current block is not available. A technique for improved MVP is disclosed where the MVP utilized multiple candidates based on co-located motion vectors from future and/or past reference pictures. The candidates are arranged according to priority order to provide better availability of MVP and also to provide more accurate prediction. Furthermore, the MVP technique disclosed can be operated in a closed-loop fashion so that no additional side information or minimum additional side information is required.
摘要翻译：公开了一种用于图像中当前块的运动矢量预测的装置和方法。在视频编码系统中，使用空间和时间预测来利用空间和时间冗余来减少要发送的信息。运动矢量预测（MVP）已被用于进一步节省与运动矢量相关的比特率。在传统的时间MVP中，预测器通常基于诸如前一帧/图像中的同位置运动矢量的单个候选。如果前一帧/图像中的同位置运动矢量不存在，则当前块的预测器不可用。公开了一种用于改进MVP的技术，其中MVP基于来自未来和/或过去的参考图片的同位置运动矢量利用多个候选。候选人按照优先顺序排列，以提供更好的MVP可用性，并提供更准确的预测。此外，所公开的MVP技术可以以闭环方式操作，使得不需要额外的辅助信息或最小的附加侧信息。

95. 发明授权

US09094691B2 Methods of utilizing tables adaptively updated for coding/decoding and related processing circuits thereof 有权
标题翻译：利用自适应地更新编码/解码表的方法及其相关处理电路
公开(公告)号：US09094691B2
公开(公告)日：2015-07-28
申请号：US13017041
申请日：2011-01-30
申请人： Kai Zhang , Shaw-Min Lei
发明人： Kai Zhang , Shaw-Min Lei
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , G06K9/36 , G06K9/46 , H03M7/00 , H04N19/93 , H04N19/196 , H04N19/463
CPC分类号： H04N19/93 , H04N19/196 , H04N19/463
摘要： A method of converting first data into second data includes: determining a target symbol corresponding to the first data by utilizing a determining unit; and generating the second data corresponding to the determined target symbol. One of the first data and the second data is a syntax element, and the other of the first data and the second data is an entropy-coded result of the syntax element. The target symbol corresponding to the first data is determined adaptively according to occurrence probability of candidate syntax element values of the syntax element.
摘要翻译：将第一数据转换为第二数据的方法包括：利用确定单元确定与第一数据相对应的目标符号; 以及生成对应于所确定的目标符号的第二数据。第一数据和第二数据之一是语法元素，第一数据和第二数据中的另一个是语法元素的熵编码结果。根据语法元素的候选语法元素值的出现概率，自适应地确定对应于第一数据的目标符号。

96. 发明授权

US09036692B2 Motion prediction method 有权
标题翻译：运动预测方法
公开(公告)号：US09036692B2
公开(公告)日：2015-05-19
申请号：US12957644
申请日：2010-12-01
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： H04N19/513 , H04N19/56
CPC分类号： H04N19/56 , H04N19/172 , H04N19/513
摘要： A motion prediction method is provided. The method has the following steps of: determining a plurality of candidate units corresponding to a current unit of a current frame; obtaining a plurality of motion vectors of the candidate units; calculating a plurality of temporal scaling factors of the candidate units according to a plurality of temporal distances between a plurality of reference frames of the motion vectors and the current frame; scaling the motion vectors of the candidate units according to the temporal scaling factors to obtain a plurality of scaled motion vectors; and selecting a motion vector predictor for motion prediction of the current unit from the candidate units according to the scaled motion vectors.
摘要翻译：提供了一种运动预测方法。该方法具有以下步骤：确定与当前帧的当前单位对应的多个候选单元; 获得所述候选单元的多个运动矢量; 根据运动矢量的多个参考帧与当前帧之间的多个时间距离来计算候选单元的多个时间缩放因子; 根据时间缩放因子缩放候选单元的运动矢量以获得多个缩放的运动矢量; 以及根据所述缩放的运动矢量从候选单元中选择用于当前单位的运动预测的运动矢量预测器。

97. 发明授权

US08971400B2 Method for performing hybrid multihypothesis prediction during video coding of a coding unit, and associated apparatus 有权
标题翻译：用于在编码单元的视频编码期间进行混合多重假设预测的方法和相关联的装置
公开(公告)号：US08971400B2
公开(公告)日：2015-03-03
申请号：US13048893
申请日：2011-03-16
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： H04N7/12 , H04N19/51 , H04N19/583 , H04N19/70 , H04N19/56 , H04N19/547 , H04N19/54 , H04N11/02
CPC分类号： H04N19/00715 , H04N19/54 , H04N19/547 , H04N19/56 , H04N19/573 , H04N19/58 , H04N19/70
摘要： A method for performing hybrid multihypothesis prediction during video coding of a coding unit includes: processing a plurality of sub-coding units in the coding unit; and performing motion vector derivation of a portion of the sub-coding units. More particularly, the step of performing motion vector derivation of the portion of the sub-coding units further includes: deriving a plurality of motion vectors for multihypothesis motion-compensated prediction of a specific sub-coding unit of the portion of the sub-coding units from at least one other sub-coding/coding unit or by performing motion estimation. The method further includes performing multihypothesis motion-compensated prediction on the specific sub-coding unit according to the plurality of motion vectors, and more particularly, includes utilizing a linear combination of a plurality of pixel values derived from the plurality of motion vectors as a predicted pixel value of the specific sub-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混合多重假设预测的方法包括：在编码单元中处理多个子编码单元; 以及执行子编码单元的一部分的运动矢量导出。更具体地，执行子编码单元的部分的运动矢量导出的步骤还包括：导出用于子编码单元的一部分的特定子编码单元的多假设运动补偿预测的多个运动矢量从至少一个其他子编码/编码单元或通过执行运动估计。该方法还包括根据多个运动矢量对特定子编码单元执行多重假设运动补偿预测，更具体地，包括利用从多个运动矢量导出的多个像素值的线性组合作为预测特定子编码单元的像素值。还提供了一种相关联的装置。

98. 发明授权

US08879620B2 Method for performing localized multihypothesis prediction during video coding of a coding unit, and associated apparatus 有权
标题翻译：用于在编码单元的视频编码期间执行局部多重假设预测的方法，以及相关联的装置
公开(公告)号：US08879620B2
公开(公告)日：2014-11-04
申请号：US13080668
申请日：2011-04-06
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： H04N11/02 , H04N19/56 , H04N19/51 , G06K9/36
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: dividing the coding unit into a plurality of sub-coding units; and performing motion vector prediction of each of the sub-coding units. More particularly, the step of performing motion vector prediction of each of the sub-coding units further includes: obtaining a plurality of motion vectors for multihypothesis motion compensation of a specific sub-coding unit of the sub-coding units from a plurality of other sub-coding/coding units. The method further includes performing multihypothesis motion compensation on the specific sub-coding unit according to the plurality of motion vectors, and more particularly, includes utilizing a linear combination of a plurality of pixel values of the plurality of other sub-coding/coding units as a predicted pixel value of the specific sub-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重假设预测的方法包括：将编码单元划分为多个子编码单元; 以及对每个子编码单元进行运动矢量预测。更具体地，执行每个子编码单元的运动矢量预测的步骤还包括：从多个其他子级获得多个子编码单元的特定子编码单元的多假设运动补偿的运动矢量编码/编码单元。该方法还包括根据多个运动矢量对特定子编码单元执行多重假设运动补偿，更具体地，包括利用多个其他子编码/编码单元的多个像素值的线性组合作为特定子编码单元的预测像素值。还提供了一种相关联的装置。

99. 发明授权

US08861617B2 Method and apparatus of region-based adaptive loop filtering 有权
标题翻译：基于区域的自适应环路滤波的方法和装置
公开(公告)号：US08861617B2
公开(公告)日：2014-10-14
申请号：US13177343
申请日：2011-07-06
申请人： Ching-Yeh Chen , Chih-Ming Fu , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Ching-Yeh Chen , Chih-Ming Fu , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26 , H04N19/82 , H04N19/17 , H04N19/117 , H04N19/147 , H04N19/127
CPC分类号： H04N19/00103 , H04N19/117 , H04N19/127 , H04N19/147 , H04N19/17 , H04N19/82
摘要： In a block-based motion compensated system, coding noises may arise due to lossy operations. Adaptive loop filter (ALF) is a technique used to improve the quality. A pixel adaptive (PA) ALF method was developed that uses the Sum-modified Laplacian Measure (SLM) to classify pixels and applies a respective ALF filter to each pixel according to the SLM. While the PA ALF achieves better performance over a conventional single filter (SF) based ALF, the PA ALF causes higher complexity and consumes more power due to the high complexity and per-pixel filter switching. Accordingly region based ALF scheme is disclosed which allows adaptive filter selection on a region by region basis and does not require per-pixel filter switching. In one embodiment according to the present invention, a picture is divided into M×N regions. The region based ALF also allows region merging for the M×N regions to improve performance. In another aspect of the present invention, the optimal ALF design also takes into consideration of the system complexity by using rate-distortion-complexity optimization (RDCO). The RDCO technique is also applied to sample adaptive offset (SAO) design.
摘要翻译：在基于块的运动补偿系统中，由于有损操作可能会产生编码噪声。自适应环路滤波器（ALF）是一种用于提高质量的技术。开发了像素自适应（PA）ALF方法，其使用Sum-Modified Laplacian Measure（SLM）对像素进行分类，并根据SLM对每个像素应用相应的ALF滤波器。虽然PA ALF比传统的基于单滤波器（SF）的ALF具有更好的性能，但是由于高复杂性和每像素滤波器切换，PA ALF导致更高的复杂度并且消耗更多的功率。公开了基于区域的ALF方案，其允许在逐个区域的基础上进行自适应滤波器选择，并且不需要每像素滤波器切换。在根据本发明的一个实施例中，图片被分成M×N个区域。基于区域的ALF还允许区域合并M×N区域以提高性能。在本发明的另一方面，最佳ALF设计还通过使用速率 - 失真 - 复杂度优化（RDCO）来考虑系统的复杂性。 RDCO技术也适用于采样自适应偏移（SAO）设计。

100. 发明授权

US08755636B2 Method and apparatus of high-resolution image reconstruction based on multi-frame low-resolution images 有权
标题翻译：基于多帧低分辨率图像的高分辨率图像重建方法和装置
公开(公告)号：US08755636B2
公开(公告)日：2014-06-17
申请号：US13476208
申请日：2012-05-21
申请人： Xinfeng Zhang , Si-Wei Ma , Xun Guo , Shaw-Min Lei
发明人： Xinfeng Zhang , Si-Wei Ma , Xun Guo , Shaw-Min Lei
IPC分类号： G06K9/32
CPC分类号： G06T3/4053
摘要： A method and apparatus for reconstructing a high-resolution image based on multiple low-resolution images are disclosed. The method and apparatus incorporating an embodiment according to the present invention reconstructs the high-resolution image based on a kernel regression method using a modified kernel function. The kernel function takes into consideration of registration reliability of regression residue and rotational motion within the multiple low-resolution images. The registration reliability adjusts weighting on the regression residues according to local gradient estimated between neighboring values. Furthermore, multi-scale regression residue is used to alleviate impact of noise.
摘要翻译：公开了一种基于多个低分辨率图像重建高分辨率图像的方法和装置。结合根据本发明的实施例的方法和装置基于使用修改的内核功能的内核回归方法来重构高分辨率图像。核函数考虑了多个低分辨率图像内的回归残差和旋转运动的配准可靠性。注册可靠性根据相邻值之间估计的局部梯度来调整回归残差的权重。此外，多尺度回归残差用于减轻噪声的影响。

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