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51. 发明申请

WO2015051118A1 HIGH PRECISION EXPLICIT WEIGHTED PREDICTION FOR VIDEO CODING 审中-公开
标题翻译：高精度显着加权视频编码预测
公开(公告)号：WO2015051118A1
公开(公告)日：2015-04-09
申请号：PCT/US2014/058822
申请日：2014-10-02
申请人： QUALCOMM INCORPORATED
发明人： PU, Wei , CHEN, Jianle , KARCZEWICZ, Marta , KIM, Woo-Shik , SOLE ROJALS, Joel
IPC分类号： H04N19/597 , H04N19/105 , H04N19/70 , H04N19/136
CPC分类号： H04N19/44 , H04N19/105 , H04N19/136 , H04N19/50 , H04N19/597 , H04N19/70
摘要： In one example, a device for coding video data includes a memory configured to store video data, and a video coder configured to code a value for a syntax element representative of whether a high bit depth is enabled for the video data, and when the value for the syntax element indicates that the high bit depth is enabled: code a value for a syntax element representative of the high bit depth for one or more parameters of the video data, code values for the parameters such that the values for the parameters are representative of bit depths that are based on the value for the syntax element representative of the high bit depth, and code the video data based at least in part on the values for the parameters.
摘要翻译：在一个示例中，用于编码视频数据的设备包括被配置为存储视频数据的存储器，以及视频编码器，被配置为对代表视频数据的高位深度是否启用的语法元素的值进行编码，因为语法元素指示高位深度被启用：为代表视频数据的一个或多个参数的代表高比特深度的语法元素的值编码，用于参数的代码值使得参数的值代表基于表示高位深度的语法元素的值的位深度，并且至少部分地基于参数的值对视频数据进行编码。

52. 发明申请

WO2015031806A1 CONSTRAINED INTRA PREDICTION IN VIDEO CODING 审中-公开
标题翻译：视频编码中的约束内部预测
公开(公告)号：WO2015031806A1
公开(公告)日：2015-03-05
申请号：PCT/US2014/053497
申请日：2014-08-29
申请人： QUALCOMM INCORPORATED
发明人： PANG, Chao , CHEN, Jianle , SOLE ROJALS, Joel , JOSHI, Rajan Laxman , GUO, Liwei , KARCZEWICZ, Marta
IPC分类号： H04N19/00
CPC分类号： H04N19/105 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/593 , H04N19/61
摘要： A method of encoding video data includes determining that a current block of video data is to be encoded using an intra block copy (BC) mode and constrained intra prediction, determining one or more reference blocks that may be used for encoding the current block using the intra BC mode, wherein each of the one or more reference blocks is encoded with an intra prediction mode, and encoding the current block of video data using the intra BC mode and at least one of the determined one or more reference blocks.
摘要翻译：一种编码视频数据的方法包括：使用块内复制（BC）模式和约束的帧内预测来确定视频数据的当前块要被编码，确定一个或多个参考块，其可以用于使用在BC内模式中，其中一个或多个参考块中的每一个被以帧内预测模式编码，并且使用帧内BC模式和所确定的一个或多个参考块中的至少一个对当前视频数据块进行编码。

53. 发明申请

WO2015031253A1 DETERMINING REGIONS WHEN PERFORMING INTRA BLOCK COPYING 审中-公开
标题翻译：在执行内部块复制时确定区域
公开(公告)号：WO2015031253A1
公开(公告)日：2015-03-05
申请号：PCT/US2014/052521
申请日：2014-08-25
申请人： QUALCOMM INCORPORATED
发明人： PANG, Chao , GUO, Liwei , CHEN, Jianle , JOSHI, Rajan Laxman , SOLE ROJALS, Joel , KARCZEWICZ, Marta
IPC分类号： H04N19/593 , H04N19/70
CPC分类号： H04N19/176 , H04N19/593 , H04N19/70 , H04N19/82
摘要： In general, techniques are described for performing an intra block copying process to code video data. A video decoding device that includes a memory and one or more processors may perform the techniques. The memory may be configured to store a current block of a picture. The processors may be configured to perform an intra block copying process to decode the current block using a prediction block that is from a same slice or a same tile as that in which the coded current block resides, the prediction block restricted to be within a search region that only includes the same slice or the same tile as that in which the coded current block resides.
摘要翻译：通常，描述了执行块内复制处理以对视频数据进行编码的技术。包括存储器和一个或多个处理器的视频解码装置可以执行这些技术。存储器可以被配置为存储图片的当前块。处理器可以被配置为执行块内复制处理，以使用来自与编码的当前块所在的相同片或相同片的预测块来解码当前块，预测块被限制在搜索范围内区域，其仅包括与编码的当前块所在的相同的片或相同的片。

54. 发明申请

WO2014165789A1 DETERMINING PALETTES IN PALETTE-BASED VIDEO CODING 审中-公开
标题翻译：在基于PALETTE的视频编码中确定PALETTES
公开(公告)号：WO2014165789A1
公开(公告)日：2014-10-09
申请号：PCT/US2014/033019
申请日：2014-04-04
申请人： QUALCOMM INCORPORATED
发明人： GUO, Liwei , KARCZEWICZ, Marta , SOLE ROJALS, Joel , JOSHI, Rajan Laxman
IPC分类号： H04N19/93 , H04N19/90
CPC分类号： H04N19/119 , H04N19/46 , H04N19/50 , H04N19/90 , H04N19/93
摘要： In an example, a method of coding video data includes determining a first palette having first entries indicating first pixel values, determining, based on the first entries of the first palette, one or more second entries indicating second pixel values of a second palette, and coding pixels of a block of video data using the second palette.
摘要翻译：在一个示例中，一种编码视频数据的方法包括确定具有指示第一像素值的第一条目的第一调色板，基于第一调色板的第一条目确定指示第二调色板的第二像素值的一个或多个第二条目，以及使用第二调色板编码视频数据块的像素。

55. 发明申请

WO2014160943A1 MEMORY REDUCTION FOR VIDEO CODING PREDICTION 审中-公开
标题翻译：用于视频编码预测的存储器减少
公开(公告)号：WO2014160943A1
公开(公告)日：2014-10-02
申请号：PCT/US2014/032180
申请日：2014-03-28
申请人： QUALCOMM INCORPORATED
发明人： SEREGIN, Vadim , WANG, Xianglin , SOLE ROJALS, Joel
IPC分类号： H04N19/186 , H04N19/119 , H04N19/176 , H04N19/136 , H04N19/109 , H04N19/426 , H04N19/577 , H04N19/503
CPC分类号： H04N19/513 , H04N19/109 , H04N19/119 , H04N19/136 , H04N19/176 , H04N19/186 , H04N19/426 , H04N19/503 , H04N19/577
摘要： In one example, an apparatus for coding video data comprises a video coder configured to obtain a motion vector for predicting a video block with a non-4:2:0 chroma format, determine a video block size for the video block, modify the motion vector to generate a modified motion vector for obtaining samples of at least one reference picture with which to predict the video block if the video block size meets a size criterion, and generate a prediction block for the video block using the samples of the at least one reference picture and the modified motion vector.
摘要翻译：在一个示例中，用于对视频数据进行编码的装置包括视频编码器，被配置为获得用于以非4：2：0色度格式预测视频块的运动矢量，确定视频块的视频块大小，修改运动向量，以产生修改的运动矢量，用于获得至少一个参考图像的样本，以便如果所述视频块大小满足大小标准则用于预测所述视频块，并且使用所述至少一个参考图像的采样生成所述视频块的预测块参考图片和修改的运动矢量。

56. 发明申请

WO2014052567A1 CONTEXT DERIVATION FOR CONTEXT-ADAPTIVE, MULTI-LEVEL SIGNIFICANCE CODING 审中-公开
标题翻译：背景自适应，多级意义编码的背景衍生
公开(公告)号：WO2014052567A1
公开(公告)日：2014-04-03
申请号：PCT/US2013/061890
申请日：2013-09-26
申请人： QUALCOMM INCORPORATED
发明人： KARCZEWICZ, Marta , SOLE ROJALS, Joel , GUO, Liwei
IPC分类号： H04N7/26
CPC分类号： H04N19/18 , H04N19/463 , H04N19/61 , H04N19/647 , H04N19/70 , H04N19/91 , H04N19/96
摘要： A device for coding video data includes a video coder configured to code first significance information for transform coefficients associated with residual data, wherein the first significance information indicates if a first sub-block comprises at least one non-zero coefficient, wherein the first sub-block is a sub-block of an entire transform block; and, code second significance information, wherein the second significance information indicates if a second sub-block comprises at least one non-zero coefficient, wherein the second sub-block is a sub-block of the first sub-block, wherein coding the second significance information comprises performing an arithmetic coding operation on the second significance information, wherein a context for the arithmetic coding operation is determined based on one or more neighboring sub-blocks of a same size as the first sub-block.
摘要翻译：一种用于编码视频数据的设备包括：视频编码器，被配置为对与残差数据相关联的变换系数编码第一有效信息，其中第一有效信息指示第一子块是否包括至少一个非零系数，其中，块是整个变换块的子块; 以及代码第二有效信息，其中第二有效信息指示第二子块是否包括至少一个非零系数，其中第二子块是第一子块的子块，其中编码第二子块重要信息包括对第二有效信息执行算术编码操作，其中基于与第一子块相同大小的一个或多个相邻子块来确定用于算术编码操作的上下文。

57. 发明申请

WO2014005092A1 SIGN HIDING TECHNIQUES FOR QUANTIZED TRANSFORM COEFFICIENTS IN VIDEO CODING 审中-公开
标题翻译：视频编码中量化变换系数的标志隐藏技术
公开(公告)号：WO2014005092A1
公开(公告)日：2014-01-03
申请号：PCT/US2013/048716
申请日：2013-06-28
申请人： QUALCOMM INCORPORATED
发明人： SOLE ROJALS, Joel , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/00775 , H04N19/129 , H04N19/18 , H04N19/467 , H04N19/48 , H04N19/61
摘要： A video coder, when coding residual data, determines whether to perform SDH for a coefficient group of a chroma transform block independently from determining whether to perform SDH for the coefficient group of the luma transform block.
摘要翻译：视频编码器在编码残差数据时，独立于确定是否对亮度变换块的系数组执行SDH，确定是否对色度变换块的系数组执行SDH。

58. 发明申请

WO2013158656A2 UNIFORM GRANULARITY FOR QUANTIZATION MATRIX IN VIDEO CODING 审中-公开
标题翻译：视频编码中量化矩阵的一致格式
公开(公告)号：WO2013158656A2
公开(公告)日：2013-10-24
申请号：PCT/US2013/036799
申请日：2013-04-16
申请人： QUALCOMM INCORPORATED
发明人： JOSHI, Rajan Laxman , SOLE ROJALS, Joel , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/00006 , H04N19/126 , H04N19/176 , H04N19/18 , H04N19/46
摘要： The techniques of this disclosure are directed toward the use of modified quantization parameter (QP) values to calculate quantized and dequantized transform coefficients of a video block with uniform QP granularity. Conventionally, when a quantization matrix is used during quantization and dequantization of transform coefficients, the quantization matrix entries act as scale factors of a quantizer step-step corresponding to a base QP value, which results in non-uniform QP granularity. To provide uniform QP granularity across all quantization matrix entries, the techniques include calculating modified QP values for transform coefficients based on associated quantization matrix entries used as offsets to a base QP value. At a video decoder, the techniques include calculating dequantized transform coefficients from quantized transform coefficients based on the modified QP values. At a video encoder, the techniques include calculating quantized transform coefficients from transform coefficients based on the modified QP values.
摘要翻译：本公开的技术针对使用修改的量化参数（QP）值来计算具有均匀QP粒度的视频块的量化和解量化的变换系数。常规地，当在量化和去量化变换系数期间使用量化矩阵时，量化矩阵条目充当对应于基本QP值的量化器步长的比例因子，这导致非均匀QP粒度。为了跨所有量化矩阵条目提供统一的QP粒度，这些技术包括基于用作基础QP值的偏移的关联量化矩阵条目来计算变换系数的修改QP值。在视频解码器中，这些技术包括基于修改的QP值从量化的变换系数计算解量化的变换系数。在视频编码器中，这些技术包括基于修改后的QP值从变换系数计算量化变换系数。

59. 发明申请

WO2013158629A1 SIGN HIDING TECHNIQUES FOR QUANTIZED TRANSFORM COEFFICIENTS IN VIDEO CODING 审中-公开
标题翻译：视频编码中量化变换系数的标志隐藏技术
公开(公告)号：WO2013158629A1
公开(公告)日：2013-10-24
申请号：PCT/US2013/036766
申请日：2013-04-16
申请人： QUALCOMM INCORPORATED
发明人： SOLE ROJALS, Joel , CHEN, Jianle , CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/61 , H04N19/129 , H04N19/18 , H04N19/467 , H04N19/48
摘要： This disclosure proposes techniques for encoding and decoding transform coefficients in a video coding process. In particular, this disclosure proposes techniques determining whether or not to apply a sign data hiding process for a group of transform coefficients, and techniques for applying the sign data hiding process. In one example, this disclosure describes a method for decoding video data comprising determining a block of transform coefficients, determining whether to perform a sign data hiding process for at least one transform coefficient in the block of transform coefficients based on a single variable compared to a threshold, and decoding sign information for the block based on the determination of whether to perform the sign data hiding process.
摘要翻译：本公开提出了在视频编码处理中对变换系数进行编码和解码的技术。具体地，本公开提出了确定是否对一组变换系数应用符号数据隐藏处理的技术以及用于应用符号数据隐藏处理的技术。在一个示例中，本公开描述了一种用于对视频数据进行解码的方法，包括：确定变换系数块，确定是否对变换系数块中的至少一个变换系数执行符号数据隐藏处理，基于与基于是否执行符号数据隐藏处理的确定，对块的阈值和解码符号信息。

60. 发明申请

WO2013158566A1 COEFFICIENT GROUPS AND COEFFICIENT CODING FOR COEFFICIENT SCANS 审中-公开
标题翻译：系统扫描的系数组合和系数编码
公开(公告)号：WO2013158566A1
公开(公告)日：2013-10-24
申请号：PCT/US2013/036646
申请日：2013-04-15
申请人： QUALCOMM INCORPORATED
发明人： SOLE ROJALS, Joel , JOSHI, Rajan Laxman , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/60 , H03M7/40 , H03M7/4018 , H04N19/102 , H04N19/129 , H04N19/13 , H04N19/167 , H04N19/176 , H04N19/18
摘要： Techniques are described for a video coder (e.g., video encoder or video decoder) that is configured to select a context pattern from a plurality of context patterns that are the same for a plurality of scan types. Techniques are also described for a video coder that is configured to select a context pattern that identifies contexts for two or more scan types.
摘要翻译：描述了用于视频编码器（例如，视频编码器或视频解码器）的技术，其被配置为从多个扫描类型相同的多个上下文模式中选择上下文模式。还描述了用于视频编码器的技术，其被配置为选择识别两种或更多种扫描类型的上下文的上下文模式。

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