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1. 发明授权

US10200713B2 Search region determination for inter coding within a particular picture of video data 有权
公开(公告)号：US10200713B2
公开(公告)日：2019-02-05
申请号：US15151416
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 , H04N19/523 , H04N19/57 , H04N19/105 , H04N19/182 , H04N19/61 , H04N19/593 , H04N19/503 , H04N19/186
摘要： An example method of encoding video data includes determining a resolution that will be used for a motion vector that identifies a predictor block in a current picture of video data for a current block in the current picture of video data; determining, based on the determined resolution, a search region for the current block such that a size of the search region is smaller where the resolution is fractional-pixel than where the resolution is integer-pixel; selecting, from within the search region, a predictor block for the current block; determining the motion vector that identifies the selected predictor block for the current block; and encoding, in a coded video bitstream, a representation of the motion vector.

2. 发明授权

US09883197B2 Intra prediction of chroma blocks using the same vector 有权
公开(公告)号：US09883197B2
公开(公告)日：2018-01-30
申请号：US14592819
申请日：2015-01-08
申请人： QUALCOMM Incorporated
发明人： Ying Chen , Chao Pang , Li Zhang , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N7/12 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/186 , H04N19/11 , H04N19/154
CPC分类号： H04N19/513 , H04N19/11 , H04N19/154 , H04N19/186 , H04N19/52 , H04N19/593
摘要： A device for coding video data is configured to: determine a coding unit of a picture of the video data is coded using an intra block copy mode; determine a vector for a first chroma block of the coding unit; locate a first chroma reference block using the vector, the first chroma reference block being in the picture; predict the first chroma block based on the first chroma reference block; locate a second chroma reference block using the vector, the second chroma reference block being in the picture; and predict a second chroma block of the coding unit based on the second chroma reference block.

3. 发明授权

US09832467B2 Deblock filtering for intra block copying 有权
公开(公告)号：US09832467B2
公开(公告)日：2017-11-28
申请号：US14860250
申请日：2015-09-21
申请人： QUALCOMM Incorporated
发明人： Krishnakanth Rapaka , Joel Sole Rojals , Cheng-Teh Hsieh , Chao Pang , Vadim Seregin , Marta Karczewicz
IPC分类号： H04N19/176 , H04N19/86 , H04N19/00 , H04N19/50 , H04N19/103 , H04N19/117 , H04N19/182 , H04N19/513 , H04N19/593 , H04N19/82 , H04N19/159
CPC分类号： H04N19/117 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/513 , H04N19/593 , H04N19/82 , H04N19/86
摘要： Techniques are described for determining boundary strength value for an intra-block copy (IBC)-coded block and for selective storage of unfiltered pixel values of a region of a picture based on whether the region will be used as reference for IBC coding.

4. 发明申请

US20170094274A1 SHORT DISTANCE INTRA PREDICTION (SDIP) BASED VIDEO CODING 审中-公开
公开(公告)号：US20170094274A1
公开(公告)日：2017-03-30
申请号：US15278855
申请日：2016-09-28
申请人： QUALCOMM Incorporated
发明人： Wei-Jung Chien , Chao Pang , Li Zhang , Jianle Chen , Marta Karczewicz
IPC分类号： H04N19/124 , H04N19/91 , H04N19/50 , H04N19/44
CPC分类号： H04N19/124 , H04N19/11 , H04N19/119 , H04N19/122 , H04N19/126 , H04N19/129 , H04N19/159 , H04N19/176 , H04N19/43 , H04N19/44 , H04N19/463 , H04N19/50 , H04N19/593 , H04N19/91
摘要： An example device includes a memory device configured to store encoded video data, and processing circuitry coupled to the memory device. The processing circuitry is configured to determine that a rectangular transform unit (TU) of the stored video data includes a number of pixel rows denoted by a first integer value ‘K’ and a number of pixel columns denoted by a second integer value ‘L,’ where K has a value equal to an integer value ‘m’ left shifted by one, and where L has a value equal to an integer value ‘n’ left shifted by one, to determine that a sum of n and m is an odd number, and based on the sum of n and m being the odd number, to add a delta quantization parameter value to a quantization parameter (QP) value for the rectangular TU to obtain a modified QP value for the rectangular TU.

5. 发明申请

US20160337661A1 SEARCH REGION DETERMINATION FOR INTER CODING WITHIN A PARTICULAR PICTURE OF VIDEO DATA 审中-公开
标题翻译：在视频数据的特定图像中搜索区域确定
公开(公告)号：US20160337661A1
公开(公告)日：2016-11-17
申请号：US15151416
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 , H04N19/105 , H04N19/61
CPC分类号： H04N19/52 , H04N19/105 , H04N19/182 , H04N19/186 , H04N19/503 , H04N19/523 , H04N19/57 , H04N19/593 , H04N19/61
摘要： An example method of encoding video data includes determining a resolution that will be used for a motion vector that identifies a predictor block in a current picture of video data for a current block in the current picture of video data; determining, based on the determined resolution, a search region for the current block such that a size of the search region is smaller where the resolution is fractional-pixel than where the resolution is integer-pixel; selecting, from within the search region, a predictor block for the current block; determining the motion vector that identifies the selected predictor block for the current block; and encoding, in a coded video bitstream, a representation of the motion vector.
摘要翻译：编码视频数据的示例方法包括确定将用于识别视频数据的当前图像中的当前块的视频数据的当前图像中的预测块的运动矢量的分辨率; 基于所确定的分辨率，确定当前块的搜索区域，使得搜索区域的尺寸小于分辨率是分数像素而不是分辨率是整数像素的尺寸; 从搜索区域内选择当前块的预测块; 确定识别当前块的所选预测器块的运动矢量; 并且在编码视频比特流中对运动矢量的表示进行编码。

6. 发明申请

US20160105682A1 INTRA BLOCK COPY PREDICTION RESTRICTIONS FOR PARALLEL PROCESSING 审中-公开
标题翻译：内部块复制预测并行处理限制
公开(公告)号：US20160105682A1
公开(公告)日：2016-04-14
申请号：US14878825
申请日：2015-10-08
申请人： QUALCOMM Incorporated
发明人： Krishnakanth Rapaka , Chao Pang , Vadim Seregin , Marta Karczewicz
IPC分类号： H04N19/50 , H04N19/44
CPC分类号： H04N19/50 , H04N19/11 , H04N19/157 , H04N19/174 , H04N19/436 , H04N19/44 , H04N19/55 , H04N19/593
摘要： According to techniques of this disclosure, a video decoder can be configured to, for one or more blocks coded with wavefront parallel processing enabled, determine a coding tree block (CTB) delay, wherein the CTB delay identifies a delay between when a first row of CTBs starts being decoded and when a second row of CTBs below the first row of CTBs starts being decoded; for a current block of video data coded in an intra-block copy (IBC) mode and coded with wavefront parallel processing disabled, determine an IBC prediction region for the current block within a picture that includes the current block based on the CTB delay that was determined for the one or more blocks coded with wavefront parallel processing enabled; identify, from within the determined IBC prediction region for the current block, a predictive block for the current block; and IBC decode the current block based on the predictive block.
摘要翻译：根据本公开的技术，视频解码器可以被配置为，对于使能波前并行处理编码的一个或多个块来确定编码树块（CTB）延迟，其中，CTB延迟识别在第一行 CTB开始被解码，并且当CTB的第一行之下的第二行CTB开始被解码时; 对于以片内复制（IBC）模式编码并以波前并行处理禁用编码的视频数据的当前块，基于CTB延迟确定包括当前块的当前块内的当前块的IBC预测区域为使能波前并行处理编码的一个或多个块确定; 从所确定的当前块的IBC预测区域内识别当前块的预测块; 并且IBC基于预测块来解码当前块。

7. 发明申请

US20160100163A1 DEBLOCK FILTERING FOR INTRA BLOCK COPYING 有权
标题翻译：用于内部块复制的阻塞滤波
公开(公告)号：US20160100163A1
公开(公告)日：2016-04-07
申请号：US14860250
申请日：2015-09-21
申请人： QUALCOMM Incorporated
发明人： Krishnakanth Rapaka , Joel Sole Rojals , Cheng-Teh Hsieh , Chao Pang , Vadim Seregin , Marta Karczewicz
IPC分类号： H04N19/117 , H04N19/82 , H04N19/513 , H04N19/593 , H04N19/176 , H04N19/182
CPC分类号： H04N19/117 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/513 , H04N19/593 , H04N19/82 , H04N19/86
摘要： Techniques are described for determining boundary strength value for an intra-block copy (IBC)-coded block and for selective storage of unfiltered pixel values of a region of a picture based on whether the region will be used as reference for IBC coding.
摘要翻译：描述了用于确定块内复制（IBC）编码块的边界强度值并基于该区域将被用作IBC编码的参考来选择性地存储图像区域的未滤波像素值的技术。

8. 发明申请

US20150373362A1 DEBLOCKING FILTER DESIGN FOR INTRA BLOCK COPY 审中-公开
标题翻译：阻塞滤波器设计用于内部块复制
公开(公告)号：US20150373362A1
公开(公告)日：2015-12-24
申请号：US14743722
申请日：2015-06-18
申请人： QUALCOMM Incorporated
发明人： Chao Pang , Ying Chen , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N19/52 , H04N19/176 , H04N19/187 , H04N19/174 , H04N19/597 , H04N19/172 , H04N19/117
CPC分类号： H04N19/117 , H04N19/159 , H04N19/176 , H04N19/187 , H04N19/82 , H04N19/86
摘要： A video coding device may encode and/or decode video data. The video coding device encodes a first video block in a first picture by predicting values of the first video block based on a previously encoded video block in a second picture different than the first picture. The video coding device filters the first video block according to a deblocking filtering process. The video coding device encodes a second video block in the first picture by predicting values of the second video block based on a previously encoded video block in the first picture. The video coding device filters the second video block according to the deblocking filtering process. The video coding device decodes the first video block, filters the first video block according to the deblocking filtering process, decodes the second video block, and filters the second video block according to the deblocking filtering process.
摘要翻译：视频编码装置可以对视频数据进行编码和/或解码。视频编码装置通过基于与第一图像不同的第二图像中的先前编码的视频块来预测第一视频块的值来对第一图像中的第一视频块进行编码。视频编码装置根据解块滤波处理过滤第一视频块。视频编码装置通过基于第一图像中的先前编码的视频块预测第二视频块的值来对第一图像中的第二视频块进行编码。视频编码装置根据去块滤波处理对第二视频块进行滤波。视频编码装置对第一视频块进行解码，根据去块滤波处理对第一视频块进行滤波，对第二视频块进行解码，并根据去块滤波处理对第二视频块进行滤波。

9. 发明申请

US20150271517A1 SEARCH REGION DETERMINATION FOR INTRA BLOCK COPY IN VIDEO CODING 审中-公开
标题翻译：搜索区域确定视频编码中的块内复制
公开(公告)号：US20150271517A1
公开(公告)日：2015-09-24
申请号：US14663161
申请日：2015-03-19
申请人： Qualcomm Incorporated
发明人： Chao Pang , Joel Sole Rojals , Cheng-Teh Hsieh , Marta Karczewicz
IPC分类号： H04N19/52 , H04N19/182 , H04N19/139 , H04N19/56 , H04N19/105
CPC分类号： H04N19/52 , H04N19/105 , H04N19/139 , H04N19/182 , H04N19/56 , H04N19/563 , H04N19/57 , H04N19/593
摘要： A video coder may determine a search region for coding a current block of video data using Intra Block Copy (Intra BC). In some examples, the video coder determines a central point for the search region, and determines the search region for the current block based on the central point and a defined size for the search region. The video coder stores reconstructed blocks of the video data from a current picture that includes the current block in a memory based on the determined search region. The video coder codes information from which to identify one of the reconstructed blocks within the search region, and codes the current block based on the identified one of the reconstructed blocks according to Intra BC.
摘要翻译：视频编码器可以使用帧内复制（Intra Block Copy，Intra Block Copy）来确定用于编码当前视频数据块的搜索区域。在一些示例中，视频编码器确定搜索区域的中心点，并且基于搜索区域的中心点和定义的大小来确定当前块的搜索区域。视频编码器基于所确定的搜索区域将来自包括当前块的当前图像的视频数据的重构块存储在存储器中。视频编码器对来自搜索区域内的重建块之一的信息进行编码，并且根据BC内部基于所识别的一个重构块对当前块进行编码。

10. 发明申请

US20150264376A1 QUANTIZATION PROCESSES FOR RESIDUE DIFFERENTIAL PULSE CODE MODULATION 有权
标题翻译：残留差分脉冲代码调制的量化过程
公开(公告)号：US20150264376A1
公开(公告)日：2015-09-17
申请号：US14659358
申请日：2015-03-16
申请人： QUALCOMM Incorporated
发明人： Feng Zou , Joel Sole Rojals , Rajan Laxman Joshi , Chao Pang , Marta Karczewicz
IPC分类号： H04N19/463 , H04N19/196 , H04N19/126
CPC分类号： H04N19/463 , H04N19/126 , H04N19/157 , H04N19/197
摘要： In an example, system and method for coding encoded video data. A quantized residue differences block associated with a current block of a picture is generated and a reconstructed prediction residue for each quantized residue difference in the block of quantized residue differences is generated. Each reconstructed prediction residue is added to its corresponding original prediction value to produce a current block of a picture. Generating the reconstructed prediction residue includes performing inverse quantization on blocks of quantized residue differences, wherein the inverse quantization reconstructs data to which uniform quantization residue differential pulse code modulation (RDPCM) has been applied and wherein the quantization is of the form: ΔXq=floor((X+αQ)/Q) where Q is quantization step and α is quantization offset.
摘要翻译：在一个例子中，用于编码编码视频数据的系统和方法。产生与图像的当前块相关联的量化残差差分块，并且生成量化残差差分块中每个量化残差差的重构预测残差。将每个重建的预测残差加到其对应的原始预测值以产生图像的当前块。生成重建的预测残差包括对量化残差差分块执行逆量化，其中逆量化重建已应用均匀量化残差差分脉冲编码调制（RDPCM）的数据，其中量化形式为：＆Dgr; Xq = （（X +αQ）/ Q）其中Q是量化步长，α是量化偏移。

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