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1. 发明授权

US10462475B2 Methods of palette based prediction for non-444 color format in video and image coding 有权
公开(公告)号：US10462475B2
公开(公告)日：2019-10-29
申请号：US15534534
申请日：2015-12-16
申请人： Shan Liu , Jing Ye , Xiaozhong Xu , Jungsun Kim , Wang-Lin Lai , Shaw-Min Lei
发明人： Shan Liu , Jing Ye , Xiaozhong Xu , Jungsun Kim , Wang-Lin Lai , Shaw-Min Lei
IPC分类号： G06K9/36 , H04N19/186 , H04N19/70 , H04N19/593 , H04N19/103 , H04N19/119 , H04N19/59 , H04N11/00
摘要： A method of video coding using palette coding mode for color video in a non-444 color format is disclosed. The non-444 video data can be converted to the 444 format so that the palette designed for the 444 format can be used for the non-444 video data. For the 4:2:0 color format, each chroma sample collocated with corresponding quad luma samples is padded with three chroma samples to form converted quad chroma samples. For the 4:2:0 color format, if a current pixel does not belong to the color palette, one or more escape values are signaled for the current pixel and the escape value associated with the chroma sample of the current pixel for each color component is not signaled for three of the quad chroma sample locations collocated with corresponding quad luma samples.

2. 发明授权

US10123008B2 Method and apparatus for coding of intra prediction mode 有权
公开(公告)号：US10123008B2
公开(公告)日：2018-11-06
申请号：US14123093
申请日：2012-06-14
申请人： Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang , Shan Liu , Zhi Zhou , Shaw-Min Lei
发明人： Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang , Shan Liu , Zhi Zhou , Shaw-Min Lei
IPC分类号： H04N7/32 , H04N7/26 , H04N19/11 , H04N19/159 , H04N19/176 , H04N19/70 , H04N19/593 , H04N19/463 , H04N19/186 , H04N19/136 , H04N19/169 , H04N19/44 , H04N19/91
摘要： Embodiments according to the present invention configure the intra prediction mode candidates into multi-level MPM sets, which comprise at least a first-level MPM set and a second-level MPM set. Encoding or decoding a current intra prediction mode is based on the multi-level MPM sets, where one syntax element of the syntax information to be generated or decoded respectively is associated with evaluating the current intra prediction mode using the first-level MPM set. A method and apparatus for chroma intra prediction mode encoding and decoding are also disclosed. The chroma intra prediction mode set includes a Luma-based chroma prediction Mode (LM), a Direct Mode (DM) and four other modes. The codeword set comprises variable-length codewords and fixed-length codewords, and the fixed-length codewords are longer than the variable-length codewords. The variable-length codewords are used for the DM and LM, and the fixed-length codewords are used for the four other modes.

3. 发明授权

US10070126B2 Method and apparatus of intra mode coding 有权
公开(公告)号：US10070126B2
公开(公告)日：2018-09-04
申请号：US14123201
申请日：2012-04-18
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 , H04N19/70 , H04N19/463 , H04N19/91 , H04N19/105 , H04N19/176 , H04N19/11 , H04N19/157
摘要： Method and apparatus for intra prediction mode coding and decoding are disclosed. In one embodiment, the encoding and decoding process assigns individual indices and codewords to DC mode and Planar mode respectively. The flag is set if the current intra prediction mode is equal to any of one or more neighboring intra prediction modes. Variable length codes are designed for a remaining mode set. If the flag is not set, the currently intra prediction mode is encoded using the variable length codes. In another embodiment, multiple most probable modes are used. If the current intra prediction mode is not equal to any of the multiple most probable modes, the current intra prediction mode is encoded using variable length codes designed for the corresponding remaining modes according the ranking order of the remaining modes.

4. 发明授权

US09769472B2 Method and apparatus for Intra prediction using non-square blocks 有权
公开(公告)号：US09769472B2
公开(公告)日：2017-09-19
申请号：US14234152
申请日：2012-07-26
申请人： Shan Liu , Ximin Zhang , Shaw-Min Lei
发明人： Shan Liu , Ximin Zhang , Shaw-Min Lei
IPC分类号： H04N19/105 , H04N19/182 , H04N19/136 , H04N19/176 , H04N19/147 , H04N19/11 , H04N19/132 , H04N19/70 , H04N19/119 , H04N19/122 , H04N19/593 , H04N19/33
CPC分类号： H04N19/105 , H04N19/11 , H04N19/119 , H04N19/122 , H04N19/132 , H04N19/136 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/33 , H04N19/593 , H04N19/70
摘要： A method and apparatus for Intra prediction of a block based on neighboring pixels around the block are disclosed. Embodiments according to the present invention use square blocks as well as non-square blocks for Intra prediction. For a 2N×2N Luma CU (coding unit), the CU can be partitioned into 2N×N, N×2N, 2N×2N or N×N PUs. The 2N×N and N×2N PUs can be further processed by either square transforms only or both non-square and square transforms. In one embodiment, the 2N×N PU or the N×2N PU is processed as two N×N TUs (transform units) and each of the N×N TU is further split into smaller N×N TUs based on quad-tree split. In another embodiment, the 2N×N and N×2N PUs are processed as two 2N×0.5N and 0.5N×2N TUs respectively.

5. 发明授权

US09762925B2 Adaptive interpolation filter for video coding 有权
公开(公告)号：US09762925B2
公开(公告)日：2017-09-12
申请号：US12405250
申请日：2009-03-17
申请人： Chih-Ming Fu , Xun Guo , Kai Zhang , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Xun Guo , Kai Zhang , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12 , H04N11/00 , H04N19/523 , H04N19/147 , H04N19/46 , H04N19/117 , H04N19/19 , H04N19/82 , H04N19/436 , H04N19/176 , H04N19/142 , H04N19/433 , H04N19/86
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 interpolation filtering for coding video data includes a prediction unit, a reconstruction unit, a reference picture buffer, a filter parameter estimator for estimating filter parameters according to the original video data and the predicted samples, and an adaptive interpolation filter for utilizing the stored filter parameters to perform filtering on the reconstructed video data.

6. 发明授权

US09307239B2 Method and apparatus for derivation of motion vector candidate and motion vector prediction candidate 有权
标题翻译：用于推导运动矢量候选和运动矢量预测候选的方法和装置
公开(公告)号：US09307239B2
公开(公告)日：2016-04-05
申请号：US13990345
申请日：2012-03-13
申请人： Jian-Liang Lin , Yi-Wen Chen , Yu-Pao Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Jian-Liang Lin , Yi-Wen Chen , Yu-Pao Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N11/04 , H04N19/56 , H04N19/52
CPC分类号： H04N19/52 , H04N19/533 , H04N19/56
摘要： An apparatus and method for deriving a motion vector predictor are disclosed. A search set comprising of multiple (spatial, or temporal) search MVs with priority is determined, wherein the search MVs for multiple neighboring reference block or one or more co-located reference blocks are configured into multiple search MV groups. In order to improve coding efficiency, embodiments according to the present invention, perform redundancy check every time after a search MV group is searched to determine whether an available search MV found. If an available search MV is found and the available search MV is not the same as a previously derived motion vector predictor (MVP), the available search MV is used as the MVP and the MVP derivation process terminates. Otherwise, the MVP derivation process moves to the next reference block. The search MV group can be configured to include different search MV(s) associated with reference blocks.
摘要翻译：公开了一种用于导出运动矢量预测器的装置和方法。确定包括具有优先级的多个（空间或时间）搜索MV的搜索集，其中多个相邻参考块或一个或多个同位置参考块的搜索MV被配置为多个搜索MV组。为了提高编码效率，根据本发明的实施例，在搜索MV组被搜索之后每次执行冗余校验以确定是否找到可用的搜索MV。如果找到可用的搜索MV并且可用的搜索MV与先前导出的运动向量预测器（MVP）不相同，那么使用可用的搜索MV作为MVP并且MVP导出处理终止。否则，MVP导出过程移动到下一个参考块。搜索MV组可以被配置为包括与参考块相关联的不同搜索MV。

7. 发明申请

US20160050436A1 Method and Apparatus for Quantization Matrix Signaling and Representation in Scalable Video Coding 审中-公开
标题翻译：用于可量化视频编码的量化矩阵信令和表示的方法和装置
公开(公告)号：US20160050436A1
公开(公告)日：2016-02-18
申请号：US14779600
申请日：2014-03-20
申请人： Shan LIU , Shaw-Min LEI
发明人： Shan LIU , Shaw-Min LEI
IPC分类号： H04N19/597 , H04N19/30 , H04N19/124 , H04N19/70 , H04N19/176 , H04N19/187 , H04N19/59
CPC分类号： H04N19/188 , H04N19/124 , H04N19/157 , H04N19/176 , H04N19/187 , H04N19/30 , H04N19/31 , H04N19/36 , H04N19/39 , H04N19/463 , H04N19/59 , H04N19/597 , H04N19/70
摘要： A method and apparatus of scaling list data signaling for inter-layer or inter-view sharing of the scaling list data from a reference layer or a reference view in a scalable or three-dimensional video coding system are disclosed. A first flag may be incorporated in the current bitstream to indicate the scaling list data sharing from a reference layer or view. When the first flag exists and the first flag has a first value, the scaling list data for the current layer or the current view is determined from a reference bitstream for a reference layer or a reference view. When the first flag exists and the first flag has a second value, the scaling list data for the current layer or the current view is determined from the current bitstream.
摘要翻译：公开了一种缩放列表数据信令的方法和装置，用于从缩放或三维视频编码系统中的参考层或参考视图进行缩放列表数据的层间或视图间共享。可以将第一标志并入当前比特流中以从参考层或视图指示缩放列表数据共享。当存在第一标志并且第一标志具有第一值时，根据参考层或参考视图的参考比特流确定当前层或当前视图的缩放列表数据。当存在第一标志并且第一标志具有第二值时，从当前比特流确定当前层或当前视图的缩放列表数据。

8. 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。

9. 发明授权

US08891608B2 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：US08891608B2
公开(公告)日：2014-11-18
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： H04N7/50 , H04N19/56 , H04N19/51
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。

10. 发明授权

US08712173B2 Methods for processing 2Nx2N block with N being positive integer greater than four under intra-prediction mode and related processing circuits thereof 有权
标题翻译：在帧内预测模式下N为大于4的正整数的2Nx2N块的处理方法及其相关处理电路
公开(公告)号：US08712173B2
公开(公告)日：2014-04-29
申请号：US13044489
申请日：2011-03-09
申请人： Kai Zhang , Shaw-Min Lei
发明人： Kai Zhang , Shaw-Min Lei
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/463 , H04N19/11 , H04N19/196 , H04N19/70
摘要： A method for processing a 2N×2N block under intra-prediction includes: utilizing an intra-prediction unit for performing intra-prediction upon the 2N×2N block by utilizing a plurality of prediction modes, and accordingly generating a plurality of intra-prediction results respectively corresponding to the prediction modes, wherein N is a positive integer greater than four, and a number of the prediction modes is greater than four; and determining a target intra-prediction result from the intra-prediction results.
摘要翻译：用于在帧内预测中处理2N×2N块的方法包括：利用帧内预测单元，通过利用多个预测模式对2N×2N块进行帧内预测，从而生成多个帧内预测结果分别对应于预测模式，其中N是大于4的正整数，并且预测模式的数量大于4; 以及从所述帧内预测结果确定目标帧内预测结果。

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