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41. 发明授权

US09715559B2 Hash-based encoder search for intra block copy 有权
公开(公告)号：US09715559B2
公开(公告)日：2017-07-25
申请号：US14659398
申请日：2015-03-16
申请人： QUALCOMM Incorporated
发明人： Chao Pang , Xiang Li , Joel Sole Rojals , Marta Karczewicz
IPC分类号： G06F17/30 , H04N19/105 , H04N19/46 , H04N19/30 , H04N19/593 , H04N19/136 , H04N19/18 , H04N19/597 , H04N19/52 , H04N19/11 , H04N19/33 , H04N19/31
CPC分类号： G06F17/30949 , G06F17/30958 , H04N19/105 , H04N19/11 , H04N19/136 , H04N19/18 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/46 , H04N19/52 , H04N19/593 , H04N19/597
摘要： An apparatus configured to encode video information of a picture includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store a hash table that includes at least one hash index corresponding to reference blocks in the picture, the reference blocks being a subset of available blocks in the picture. The processor is configured to map a current block to a hash index in the hash table based on the application of a hash function to the current block, identify, from the hash table, reference blocks that correspond to the hash index, select a prediction block from among the reference blocks based on a comparison of the current block to the reference blocks, and encode the video information using the selected prediction block.

42. 发明授权

US09648330B2 Inter-color component residual prediction 有权
公开(公告)号：US09648330B2
公开(公告)日：2017-05-09
申请号：US14331166
申请日：2014-07-14
申请人： QUALCOMM Incorporated
发明人： Wei Pu , Woo-Shik Kim , Jianle Chen , Joel Sole Rojals , Liwei Guo , Chao Pang , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N19/186 , H04N19/147 , H04N19/105 , H04N19/61 , H04N19/176
CPC分类号： H04N19/147 , H04N19/105 , H04N19/176 , H04N19/186 , H04N19/61
摘要： A device for decoding video data includes a memory configured to store video data, and at least one processor. The at least one processor may be configured to: determine luma residual samples for a block of video data, determine predictive chroma residual samples for the block of video data, scale the luma residual samples with a scale factor to produce scaled luma residual samples, and determine updated chroma residual samples based on the predictive chroma residual samples and the scaled luma residual samples.

43. 发明授权

US09549182B2 Repositioning of prediction residual blocks in video coding 有权
标题翻译：在视频编码中重新定位预测残差块
公开(公告)号：US09549182B2
公开(公告)日：2017-01-17
申请号：US14259046
申请日：2014-04-22
申请人： QUALCOMM Incorporated
发明人： Rajan Laxman Joshi , Marta Karczewicz , Joel Sole Rojals , Chao Pang
IPC分类号： H04N11/02 , H04N19/593 , H04N19/159 , H04N19/176 , H04N19/129 , H04N19/14 , H04N19/88 , H04N19/46
CPC分类号： H04N19/159 , H04N19/129 , H04N19/14 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/88
摘要： Techniques are described for coding residual data of a prediction residual block in either a lossy or lossless coding mode, in which a transform is skipped or bypassed. The techniques of this disclosure include determining whether to reposition, e.g., rotate or flip, residual data of a residual block prior to coding the residual data of the residual block. For both the lossy and lossless coding modes, a video coding device determines whether to reposition residual data of a residual block based on a prediction mode of the residual block and a size of the residual block. In some examples, the techniques disable repositioning for all residual blocks in the inter-prediction mode and the intra block copying prediction mode, and determine to reposition residual blocks in the intra-prediction mode when the residual blocks have block sizes that are less than or equal to a threshold size.
摘要翻译：描述了用于在有损或无损编码模式中编码预测残差块的残差数据的技术，其中跳变或旁路转换。本公开的技术包括在对残余块的残差数据进行编码之前确定是否重新定位（例如）旋转或翻转残余块的残差数据。对于有损和无损编码模式，视频编码装置基于残差块的预测模式和残余块的大小来确定是否重新定位残余块的残差数据。在一些示例中，这些技术禁止在帧间预测模式和帧内块复制预测模式中的所有残余块的重新定位，并且当残差块具有小于或等于或小于块的块大小时，确定在帧内预测模式中重新定位残余块等于阈值大小。

44. 发明申请

US20160337662A1 STORAGE AND SIGNALING RESOLUTIONS OF MOTION VECTORS 审中-公开
标题翻译：运动矢量的存储和信号分析
公开(公告)号：US20160337662A1
公开(公告)日：2016-11-17
申请号：US15151429
申请日：2016-05-10
申请人： QUALCOMM Incorporated
发明人： Chao Pang , Krishnakanth Rapaka , Vadim Seregin , Marta Karczewicz , Rajan Laxman Joshi
IPC分类号： H04N19/52 , H04N19/182 , H04N19/176
CPC分类号： H04N19/52 , H04N19/176 , H04N19/182 , H04N19/42 , H04N19/513 , H04N19/523 , H04N19/70
摘要： An example method of decoding video data includes obtaining, from a video bitstream, a representation of a difference between a motion vector (MV) predictor and a MV that identifies a predictor block for a current block of video data in a current picture; obtaining, from the video bitstream, a syntax element indicating whether adaptive motion vector resolution (AMVR) is used for the current block; determining, based on the representation of the difference between the MV predictor and the MV that identifies the predictor block, a value of the MV; storing the value of the MV at fractional-pixel resolution regardless of whether AMVR is used for the current block and regardless of whether the predictor block is included in the current picture; determining, based on the value of the stored MV, pixel values of the predictor block; and reconstructing the current block based on the pixel values of the predictor block.
摘要翻译：解码视频数据的示例性方法包括从视频比特流获得运动矢量（MV）预测器和标识当前图像中的当前视频数据块的预测块的MV之间的差异的表示; 从视频比特流获取指示对当前块使用自适应运动矢量分辨率（AMVR）的语法元素; 基于MV预测器和识别预测器块的MV之间的差异的表示来确定MV的值; 无论是否将AMVR用于当前块而不管预测块是否包含在当前图像中，都以分数像素分辨率存储MV的值; 基于所存储的MV的值来确定预测器块的像素值; 并且基于预测器块的像素值来重建当前块。

45. 发明申请

US20160227214A1 FLEXIBLE PARTITIONING OF PREDICTION UNITS 审中-公开
标题翻译：灵活分类预测单位
公开(公告)号：US20160227214A1
公开(公告)日：2016-08-04
申请号：US15009657
申请日：2016-01-28
申请人： QUALCOMM Incorporated
发明人： Krishnakanth Rapaka , Vadim Seregin , Chao Pang , Marta Karczewicz
IPC分类号： H04N19/119 , H04N19/44 , H04N19/176 , H04N19/593 , H04N19/117 , H04N19/13 , H04N19/105 , H04N19/137 , H04N19/186 , H04N19/61 , H04N19/52 , H04N19/182
CPC分类号： H04N19/119 , H04N19/105 , H04N19/11 , H04N19/117 , H04N19/13 , H04N19/137 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/44 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/619 , H04N19/70
摘要： In one example, a method of coding video data includes coding, from an encoded video bitstream, a syntax element that indicates a number of lines of video data that are in one or more of a plurality of sub-PUs of a current prediction unit (PU) of a current coding unit (CU) of video data. In this example, the method further includes determining, for each respective sub-PU of the plurality of sub-PUs, a respective vector that represents a displacement between the respective sub-PU and a respective predictor block from a plurality of previously decoded blocks of video data. In this example, the method further includes reconstructing each sub-PU of the plurality of sub-PUs based on the respective predictor blocks of video data.
摘要翻译：在一个示例中，编码视频数据的方法包括从编码视频比特流中编码表示当前预测单元的多个子PU中的一个或多个中的一个或多个视频数据的行数的语法元素（ PU）视频数据的当前编码单元（CU）。在该示例中，该方法还包括：针对多个子PU的每个相应的子PU确定表示来自多个先前解码的块的各个子PU与相应预测块之间的位移的相应向量视频数据。在该示例中，该方法还包括基于视频数据的各个预测块来重建多个子PU的每个子PU。

46. 发明申请

US20150264386A1 BLOCK VECTOR PREDICTOR FOR INTRA BLOCK COPYING 有权
标题翻译：用于内部块复制的块矢量预测器
公开(公告)号：US20150264386A1
公开(公告)日：2015-09-17
申请号：US14658754
申请日：2015-03-16
申请人： QUALCOMM Incorporated
发明人： Chao Pang , Ying Chen , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N19/513 , H04N19/44 , H04N19/70
CPC分类号： H04N19/513 , H04N19/44 , H04N19/463 , H04N19/52 , H04N19/593 , H04N19/70
摘要： An example method for decoding video data includes constructing a block vector (BV) candidate list for a current block of the video data, the BV candidate list comprising a plurality of BV predictor candidates, wherein each respective BV predictor candidate of the plurality of BV predictor candidates is one of: a BV of a neighboring block, a BV of a previously coded block, and a default BV; determining, based on a syntax element obtained from an encoded video bitstream, a particular BV predictor candidate from the plurality of BV predictor candidates; determining, based on the particular BV predictor candidate, a value of a BV that represents a displacement between the current block and a predictor block of video data in a picture in which the current block resides; determining, based on the value the BV, the predictor block; and reconstructing the current block based on the predictor block.
摘要翻译：用于对视频数据进行解码的示例性方法包括：构建视频数据的当前块的块矢量（BV）候选列表，BV候选列表包括多个BV预测器候选，其中，多个BV预测器候选者是以下之一：相邻块的BV，先前编码块的BV和默认BV; 基于从编码视频比特流获得的语法元素确定来自所述多个BV预测变量候选的特定BV预测变量候选; 基于所述特定BV预测器候选确定表示当前块所在的图像中当前块与视频数据的预测块之间的位移的BV值; 根据BV的值，确定预测块; 并根据预测块重构当前块。

47. 发明授权

US11470339B2 Residual prediction for intra block copying 有权
公开(公告)号：US11470339B2
公开(公告)日：2022-10-11
申请号：US14469477
申请日：2014-08-26
申请人： QUALCOMM Incorporated
发明人： Liwei Guo , Chao Pang , Rajan Laxman Joshi , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N19/176 , H04N19/593 , H04N19/70 , H04N19/50
摘要： In an example, a method of decoding video data includes generating a residual block of a picture based on a predicted residual block including reconstructing one or more residual values of the residual block based on one or more predicted residual values of the residual block. The method also includes generating a current block of the picture based on a combination of the residual block and a prediction block of the picture.

48. 发明授权

US10638140B2 Slice level intra block copy and other video coding improvements 有权
公开(公告)号：US10638140B2
公开(公告)日：2020-04-28
申请号：US15158741
申请日：2016-05-19
申请人： QUALCOMM Incorporated
发明人： Vadim Seregin , Krishnakanth Rapaka , Cheng-Teh Hsieh , Rajan Laxman Joshi , Ye-Kui Wang , Chao Pang , Marta Karczewicz
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04 , H04N19/174 , H04N19/105 , H04N19/139 , H04N19/513 , H04N19/70 , H04N19/103 , H04N19/593
CPC分类号： H04N19/174 , H04N19/103 , H04N19/105 , H04N19/139 , H04N19/521 , H04N19/70 , H04N19/593
摘要： A device for decoding video data includes a memory configured to store the video data and one or more processors configured to receive a slice of the video data, parse an intra block copy (IBC) syntax element to determine that an IBC mode is enabled for the slice, parse a slice type syntax element associated with the slice to determine the slice is an I slice, and decode the slice as an I slice by decoding all blocks of the slice using intra prediction coding modes.

49. 发明授权

US10412387B2 Unified intra-block copy and inter-prediction 有权
公开(公告)号：US10412387B2
公开(公告)日：2019-09-10
申请号：US14831644
申请日：2015-08-20
申请人： QUALCOMM Incorporated
发明人： Chao Pang , Krishnakanth Rapaka , Ye-Kui Wang , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N19/124 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/159 , H04N19/70 , H04N19/593 , H04N19/523
摘要： A video coder may include a current picture and a reference picture in a reference picture list. The video coder may determine a co-located block of the reference picture. The co-located block is co-located with a current block of the current picture. Furthermore, the video coder derives a temporal motion vector predictor from the co-located block and may determine the temporal motion vector predictor has sub-pixel precision. The video coder may right-shift the temporal motion vector predictor determined to have sub-pixel precision. In addition, the video coder may determine, based on the right-shifted temporal motion vector predictor, a predictive block within the current picture.

50. 发明授权

US10015515B2 Intra prediction from a predictive block 有权
公开(公告)号：US10015515B2
公开(公告)日：2018-07-03
申请号：US14309730
申请日：2014-06-19
申请人： QUALCOMM Incorporated
发明人： Liwei Guo , Chao Pang , Woo-Shik Kim , Wei Pu , Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N11/02 , H04N19/52 , H04N19/593 , H04N19/82 , H04N19/563 , H04N19/105 , H04N19/176 , H04N19/70 , H04N19/513 , H04N19/186 , H04N19/154 , H04N19/523 , H04N19/55
CPC分类号： H04N19/52 , H04N19/105 , H04N19/154 , H04N19/176 , H04N19/186 , H04N19/513 , H04N19/523 , H04N19/55 , H04N19/563 , H04N19/593 , H04N19/70 , H04N19/82
摘要： Techniques coding video data, including a mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture, may include determining a predictive block of video data for the current block of video data, wherein the predictive block of video data is a reconstructed block of video data within the same picture as the current block of video data. A two-dimensional vector, which may be used by a video coder to identify the predictive block of video data, includes a horizontal displacement component and a vertical displacement component relative to the current block of video data. The mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture may be referred to as Intra Block Copy or Intra Motion Compensation.

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