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91. 发明申请

US20150016503A1 TILES AND WAVEFRONT PROCESSING IN MULTI-LAYER CONTEXT 审中-公开
标题翻译：多层背景下的倾斜和波形加工
公开(公告)号：US20150016503A1
公开(公告)日：2015-01-15
申请号：US14331054
申请日：2014-07-14
申请人： QUALCOMM Incorporated
发明人： Krishnakanth Rapaka , Ye-Kui Wang
IPC分类号： H04N19/159 , H04N19/187 , H04N19/105
CPC分类号： H04N19/187 , H04N19/103 , H04N19/30 , H04N19/436 , H04N19/70
摘要： A video encoder may generate a bitstream that includes a syntax element that indicates whether inter-layer prediction is enabled for decoding a tile of a picture of the video data. Similarly, a video decoder may obtain, from a bitstream, a syntax element that indicates whether inter-layer prediction is enabled. The video decoder may determine, based on the syntax element, whether inter-layer prediction is enabled for decoding a tile of a picture of the video data, and decode the tile based on the determination.
摘要翻译：视频编码器可以生成包括语法元素的比特流，该语法元素指示是否启用层间预测以对视频数据的图片的瓦片进行解码。类似地，视频解码器可以从比特流获得指示是否启用层间预测的语法元素。视频解码器可以基于语法元素确定层间预测是否能够用于解码视频数据的图像的图块，并且基于该确定来解码图块。

92. 发明申请

US20150010050A1 OPTIMIZATIONS ON INTER-LAYER PREDICTION SIGNALLING FOR MULTI-LAYER VIDEO CODING 有权
标题翻译：用于多层视频编码的层间预测信号优化
公开(公告)号：US20150010050A1
公开(公告)日：2015-01-08
申请号：US14318193
申请日：2014-06-27
申请人： QUALCOMM Incorporated
发明人： Jianle Chen , Ying Chen , Ye-Kui Wang , Krishnakanth Rapaka , Fnu Hendry
IPC分类号： H04N19/105 , H04N19/174 , H04N19/196
CPC分类号： H04N19/105 , H04N19/174 , H04N19/196 , H04N19/30 , H04N19/46 , H04N19/597 , H04N19/70
摘要： A method of coding video data includes receiving one or more layers of video information. Each layer may include at least one picture. The method can include processing an indicator within at least one of a video parameter set (VPS), a sequence parameter set (SPS), or a picture parameter set (PPS) that indicates whether all direct reference layer pictures associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS) are added to an inter-layer reference picture set. Based on the indicator, the method can further include refraining from further signaling inter-layer reference picture information in any video slice associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS). Alternatively, based on the indicator, the method can further include adding to the inter-layer reference picture set all direct reference layer pictures for any video slice associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS).
摘要翻译：一种编码视频数据的方法包括接收一层或多层视频信息。每个层可以包括至少一个图片。该方法可以包括处理视频参数集（VPS），序列参数集（SPS）或图像参数集（PPS）中的至少一个中的指示符，该指示符指示是否与至少一个的视频参数集（VPS），序列参数集（SPS）或图像参数集（PPS）被添加到层间参考图像集合中。基于指示符，该方法还可以包括在与视频参数集（VPS），序列参数集（SPS）或图像中的至少一个相关联的任何视频片段中进一步抑制信号层间参考图像信息参数集（PPS）。或者，基于指示符，该方法还可以包括将与视频参数集（VPS），序列参数集（VPS）中的至少一个相关联的任何视频片段的所有直接参考图像集合添加到层间参考图像集合 SPS）或图像参数集（PPS）。

93. 发明申请

US20140301485A1 IRAP ACCESS UNITS AND BITSTREAM SWITCHING AND SPLICING 有权
标题翻译： IRAP访问单元和BITSTREAM切换和分离
公开(公告)号：US20140301485A1
公开(公告)日：2014-10-09
申请号：US14244743
申请日：2014-04-03
申请人： QUALCOMM Incorporated
发明人： Adarsh Krishnan Ramasubramonian , Ye-Kui Wang , Krishnakanth Rapaka , Ying Chen
IPC分类号： H04N19/89
CPC分类号： H04N19/895 , H04N21/234327 , H04N21/4384 , H04N21/8451 , H04N21/8455
摘要： In one example, a device for coding video data includes a video coder configured to code an intra random access point (IRAP) picture of a partially aligned IRAP access unit of video data, and code data that indicates, when performing random access from the partially aligned IRAP access unit, at least one picture of a video coding layer that is not correctly decodable. When the video coder comprises a video decoder, the video decoder may skip decoding of the pictures that are not correctly decodable, assuming random access has been performed starting from the partially aligned IRAP access unit.
摘要翻译：在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为对视频数据的部分对准的IRAP存取单元的内部随机接入点（IRAP）图像进行编码;以及代码数据，当从部分地对其进行随机访问时，对准的IRAP访问单元，至少一个不能正确解码的视频编码层的图片。当视频编码器包括视频解码器时，假设从部分对准的IRAP访问单元开始执行随机访问，视频解码器可以跳过不能正确解码的图像的解码。

94. 发明授权

US11438609B2 Inter-layer picture signaling and related processes 有权
公开(公告)号：US11438609B2
公开(公告)日：2022-09-06
申请号：US14242526
申请日：2014-04-01
申请人： QUALCOMM Incorporated
发明人： Ye-Kui Wang , Jianle Chen , Krishnakanth Rapaka , Ying Chen
IPC分类号： H04N19/30 , H04N19/463 , H04N19/573 , H04N19/70 , H04N19/58
摘要： In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory configured to store inter-layer reference pictures associated with a current picture that is being coded. The apparatus further comprises a processor operationally coupled to the memory. In one embodiment, the processor is configured to indicate a number of inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to indicate which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to determine an inter-layer reference picture set associated with the current picture using the indication of the number of inter-layer reference pictures and the indication of which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction.

95. 发明授权

US10834419B2 Conformance constraint for collocated reference index in video coding 有权
公开(公告)号：US10834419B2
公开(公告)日：2020-11-10
申请号：US15484879
申请日：2017-04-11
申请人： QUALCOMM Incorporated
发明人： Rajan Laxman Joshi , Vadim Seregin , Ye-Kui Wang , Krishnakanth Rapaka , Marta Karczewicz
IPC分类号： H04N19/105 , H04N19/513 , H04N19/52 , H04N19/159 , H04N19/46 , H04N19/70 , H04N19/172 , H04N19/174 , H04N19/184
摘要： A method of encoding video data comprising encoding a current picture of video data, generating a respective collocated reference picture index syntax element for one or more slices of the current picture, and performing a bitstream conformance check only for slices of the one or more slices that do not have an intra slice type and for which a temporal motion vector predictor is enabled, the bitstream conformance check constraining the values of the respective collocated reference picture index syntax elements such that each respective collocated reference picture index syntax element points to the same picture and does not reference the current picture itself.

96. 发明授权

US10694214B2 Multi-type parallelized sample adaptive offset in video coding 有权
公开(公告)号：US10694214B2
公开(公告)日：2020-06-23
申请号：US14134765
申请日：2013-12-19
申请人： QUALCOMM Incorporated
发明人： Wei Pu , Jianle Chen , Krishnakanth Rapaka , In Suk Chong , Marta Karczewicz
IPC分类号： H04N19/132 , H04N19/70 , H04N19/186 , H04N19/86 , H04N19/436 , H04N19/82 , H04N19/194 , H04N19/14 , H04N19/117
摘要： In general, techniques are described for performing multiple passes of sample adaptive offset (SAO) filtering when coding video data. A video decoding device comprising one or more processors may perform the techniques. The processors may determine a first SAO pixel classification for a block of video data and determine a first offset value based on the first SAO pixel classification and one or more pixel values of the block. The one or more processors may also determine a second SAO pixel classification for the block and determine a second offset value based on the second SAO pixel classification and the one or more pixel values of block of video data. The processors may then apply the first offset value and the second offset value to the block of video data to generate a block of SAO filtered video data.

97. 发明授权

US10390087B2 Hypothetical reference decoder parameters for partitioning schemes in video coding 有权
公开(公告)号：US10390087B2
公开(公告)日：2019-08-20
申请号：US14700953
申请日：2015-04-30
申请人： QUALCOMM Incorporated
发明人： Adarsh Krishnan Ramasubramonian , Ye-Kui Wang , Fnu Hendry , Krishnakanth Rapaka
IPC分类号： H04N19/00 , H04N21/45 , H04N19/85 , H04N19/48 , H04N19/39 , H04N19/29 , H04N21/2343 , H04N19/187 , H04N19/44 , H04N19/70 , H04N19/66 , H04N19/30 , H04N19/127 , H04N19/157 , H04N19/436 , H04N21/81
摘要： A video processing device is configured to obtain, from a bitstream, one or more syntax elements indicating one or more partitioning schemes for an output layer set. For each respective partitioning scheme of the one or more partitioning schemes, the respective partitioning scheme specifies a division of the output layer set into one or more partitions. Each layer in the output layer set belongs to exactly one partition in the respective partitioning scheme. Additionally, the video processing device obtains, from a Supplemental Enhancement Information (SEI) message or video usability information (VUI) in a video parameter set (VPS), hypothetical reference decoder (HRD) parameters for each of the one or more partitioning schemes. For each respective partition of the respective partitioning scheme, the video processing device tests, based on the HRD parameters for the respective partitioning scheme, the respective partition for conformance to a video coding standard.

98. 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.

99. 发明授权

US10097842B2 Restriction of escape pixel signaled values in palette mode video coding 有权
公开(公告)号：US10097842B2
公开(公告)日：2018-10-09
申请号：US15266623
申请日：2016-09-15
申请人： QUALCOMM Incorporated
发明人： Vadim Seregin , Rajan Laxman Joshi , Krishnakanth Rapaka , Marta Karczewicz , Cheng-Teh Hsieh
IPC分类号： H04N19/176 , H04N19/196 , H04N19/186 , H04N19/593 , H04N19/463 , H04N19/124 , H04N19/157 , H04N19/182
摘要： An apparatus configured to decode video data that comprises a memory configured to store the video data; and one or more processors. The one or more processors are configured to: receive a bitstream that is constrained such that escape values used in a palette mode for decoding the video data are no greater than a maximum value, wherein the bitstream includes information for determining at least one escape value representing a sample in a block of the video data to be decoded; and reconstruct the sample in the block of the video data using the information for determining the at least one escape value.

100. 发明授权

US09912942B2 High-frequency-pass sample adaptive offset in video coding 有权
公开(公告)号：US09912942B2
公开(公告)日：2018-03-06
申请号：US14139357
申请日：2013-12-23
申请人： QUALCOMM Incorporated
发明人： Wei Pu , Jianle Chen , Krishnakanth Rapaka , Marta Karczewicz
IPC分类号： H04N19/117 , H04N19/196 , H04N19/176 , H04N19/136 , H04N19/14 , H04N19/187 , H04N19/82 , H04N19/70 , H04N19/33 , H04N19/86
CPC分类号： H04N19/117 , H04N19/14 , H04N19/176 , H04N19/187 , H04N19/33 , H04N19/70 , H04N19/82 , H04N19/86
摘要： Techniques for sample adaptive offset (SAO) filtering that focus on filtering the changed region of a picture or layer (e.g., the high frequency component of video blocks of a picture or layer) are described. The techniques may be referred to as High-Frequency-Pass SAO (HSAO) filtering. In one example, a method for coding video data comprises obtaining a decoded block of video data, separating the decoded block of video data into a low-frequency component and a high-frequency component, applying an SAO filter to the high-frequency component to generate a SAO filtered high-frequency component, and combining the SAO filtered high-frequency component and the low-frequency component to generate a filtered decoded block of video data.

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