专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

WO2012102927A1 PERFORMING MOTION VECTOR PREDICTION FOR VIDEO CODING 审中-公开
标题翻译：执行视频编码运动矢量预测
公开(公告)号：WO2012102927A1
公开(公告)日：2012-08-02
申请号：PCT/US2012/021742
申请日：2012-01-18
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , CHEN, Peisong , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , CHEN, Peisong , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/68
CPC分类号： H04N19/61 , H04N19/46 , H04N19/51 , H04N19/52 , H04N19/70 , H04N19/895
摘要： In general, techniques are described for performing motion vector prediction for video coding. An apparatus comprising a motion compensation unit may implement the techniques. The motion compensation unit determines spatial candidate motion vectors (MVPs) associated with a current portion of a video frame and prunes the spatial candidate motion vectors to remove duplicates without removing a temporal candidate motion vector. The motion compensation unit selects one of the temporal candidate motion vector or one of the spatial candidate motion vectors remaining after pruning as a selected candidate motion vector based on a motion vector predictor (MVP) index signaled in a bitstream and performs motion compensation based on the selected candidate motion vector.
摘要翻译：通常，描述了用于执行视频编码的运动矢量预测的技术。包括运动补偿单元的装置可以实现这些技术。运动补偿单元确定与视频帧的当前部分相关联的空间候选运动矢量（MVP），并修剪空间候选运动矢量以去除重复，而不去除时间候选运动矢量。运动补偿单元基于在比特流中发信号的运动矢量预测器（MVP）索引，选择剪枝之后剩余的时间候选运动矢量或空间候选运动矢量中的一个作为选择的候选运动矢量，并基于选择的候选运动矢量。

12. 发明申请

WO2013052244A1 MOTION VECTOR PREDICTOR CANDIDATE CLIPPING REMOVAL FOR VIDEO CODING 审中-公开
标题翻译：运动矢量预测器用于视频编码的候选人剪辑删除
公开(公告)号：WO2013052244A1
公开(公告)日：2013-04-11
申请号：PCT/US2012/054641
申请日：2012-09-11
申请人： QUALCOMM INCORPORATED , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
发明人： COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/55 , H04N19/51 , H04N19/52 , H04N19/563
摘要： This disclosure describes techniques for coding a video block based on an unclipped version of a motion vector predictor candidate. The techniques include determining a motion vector predictor candidate list including motion vector predictor candidates from neighboring video blocks without clipping the motion vector predictor candidates. More specifically, if one of the motion vector predictor candidates points to a prediction block located outside of a reference picture boundary relative to the current video block, the techniques allow an unclipped version of the motion vector predictor candidate to be included in the candidate list. The current video block is then coded based on a determined unclipped motion vector predictor candidate of the candidate list. Elimination of the motion vector predictor candidate clipping process reduces complexity at both the video encoder and the video decoder.
摘要翻译：本公开描述了基于运动矢量预测器候选的未剪切版本对视频块进行编码的技术。这些技术包括：确定包括来自相邻视频块的运动矢量预测器候选的运动矢量预测器候选列表，而不限制运动矢量预测器候选。更具体地，如果运动矢量预测器候选中的一个指向相对于当前视频块的参考图像边界外部的预测块，则这些技术允许运动矢量预测器候选的未剪切版本被包括在候选列表中。然后基于候选列表的确定的未剪切的运动矢量预测器候选来对当前视频块进行编码。消除运动矢量预测器候选削波处理降低了视频编码器和视频解码器两者的复杂性。

13. 发明申请

WO2012178053A1 QUANTIZATION PARAMETER PREDICTION IN VIDEO CODING 审中-公开
标题翻译：量化参数在视频编码中的预测
公开(公告)号：WO2012178053A1
公开(公告)日：2012-12-27
申请号：PCT/US2012/043807
申请日：2012-06-22
申请人： QUALCOMM INCORPORATED , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta , CHONG, In Suk , WANG, Xianglin
发明人： COBAN, Muhammed Zeyd , KARCZEWICZ, Marta , CHONG, In Suk , WANG, Xianglin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/196 , H04N19/105 , H04N19/176 , H04N19/428 , H04N19/463 , H04N19/61 , H04N19/90
摘要： In an example, aspects of this disclosure relate to a method of coding video data that includes identifying a plurality of quantization parameter (QP) values associated with a plurality of reference blocks of video data. The method also includes generating a reference QP for the plurality of reference blocks based on the plurality of QPs. The method also includes storing the reference QP, and coding a block of video data based on the stored reference QP.
摘要翻译：在一个示例中，本公开的方面涉及对包括识别与多个视频数据的参考块相关联的多个量化参数（QP）值的视频数据的编码方法。该方法还包括基于多个QP为多个参考块生成参考QP。该方法还包括存储参考QP，并且基于存储的参考QP对视频数据块进行编码。

14. 发明申请

WO2013058910A1 DETECTING AVAILABILITIES OF NEIGHBORING VIDEO UNITS FOR VIDEO CODING 审中-公开
标题翻译：检测视频编码视频单元的可行性
公开(公告)号：WO2013058910A1
公开(公告)日：2013-04-25
申请号：PCT/US2012/055462
申请日：2012-09-14
申请人： QUALCOMM INCORPORATED , ZHOU, Bo , RAMASWAMY, Gurunath , VEERA, Karthic , CHEN, Peisong , COBAN, Muhammed Zeyd , DU, Junchen , JALIL, Suhail
发明人： ZHOU, Bo , RAMASWAMY, Gurunath , VEERA, Karthic , CHEN, Peisong , COBAN, Muhammed Zeyd , DU, Junchen , JALIL, Suhail
IPC分类号： H04N7/26
CPC分类号： H04N19/13 , H04N19/192 , H04N19/423 , H04N19/91 , H04N19/96
摘要： As part of a video encoding or decoding operation on video data, a video coder performs a coding operation for a current video unit of the video data. As part of performing the coding operation for the current video unit, the video coder determines the availabilities of one or more video units that neighbor the current video unit. In order to determine the availability of a video unit that neighbors the current video unit, the video coder identifies, based on availabilities of video units that neighbor a parent video unit of the current video unit, an entry in a lookup table. The identified entry indicates the availability of the video unit that neighbors the current video unit. The video coder then performs a coding operation on the current video unit based on whether the video unit that neighbors the current video unit is available.
摘要翻译：作为对视频数据的视频编码或解码操作的一部分，视频编码器对视频数据的当前视频单元执行编码操作。作为执行当前视频单元的编码操作的一部分，视频编码器确定与当前视频单元相邻的一个或多个视频单元的可用性。为了确定与当前视频单元相邻的视频单元的可用性，视频编码器基于与当前视频单元的父视频单元相邻的视频单元的可用性来识别查找表中的条目。所标识的条目指示与当前视频单元相邻的视频单元的可用性。然后，视频编码器基于与当前视频单元相邻的视频单元是否可用，对当前视频单元执行编码操作。

15. 发明申请

WO2023044214A1 PROCESSING VIDEO DATA PICTURE SIZE CHANGE REQUEST AND NOTIFICATION MESSAGES 审中-公开
公开(公告)号：WO2023044214A1
公开(公告)日：2023-03-23
申请号：PCT/US2022/075010
申请日：2022-08-16
申请人： QUALCOMM INCORPORATED
发明人： HE, Yong , COBAN, Muhammed Zeyd
IPC分类号： H04N21/2343 , H04N21/6336 , H04N21/6379
摘要： An example device for requesting a reduced resolution for video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: decode a first sequence of pictures of a bitstream, the first sequence of pictures having a first resolution; in response to determining that the device is to enter a power saving mode, send a message requesting a reduced resolution relative to the first resolution for a second sequence of pictures, the second sequence of pictures being subsequent to the first sequence of pictures in coding order; and decode the second sequence of pictures of the video data of the bitstream, the second sequence of pictures having the reduced resolution. The reduced resolution may be reduced spatial resolution, reduced temporal resolution (frame rate), or both.

16. 发明申请

WO2021237020A1 GENERAL CONSTRAINT INFORMATION SIGNALING IN VIDEO CODING 审中-公开
公开(公告)号：WO2021237020A1
公开(公告)日：2021-11-25
申请号：PCT/US2021/033545
申请日：2021-05-21
申请人： QUALCOMM INCORPORATED
发明人： COBAN, Muhammed Zeyd , SEREGIN, Vadim , HE, Yong , CHANG, Yao-Jen
IPC分类号： H04N19/70
摘要： A method of processing video data, the method comprising: decoding a syntax element in a profile tier level syntax structure in a bitstream that includes an encoded representation of the video data; and based on a value of the syntax element being equal to 0, inferring that all constraint fields in a general constraint information syntax structure have values indicating that constraints corresponding to the constraint fields do not apply to the bitstream.

17. 发明申请

WO2021188898A1 HIGH LEVEL SYNTAX FOR VIDEO WITH MIXED NAL UNIT TYPES 审中-公开
公开(公告)号：WO2021188898A1
公开(公告)日：2021-09-23
申请号：PCT/US2021/023164
申请日：2021-03-19
申请人： QUALCOMM INCORPORATED
发明人： HE, Yong , SEREGIN, Vadim , COBAN, Muhammed Zeyd , RAMASUBRAMONIAN, Adarsh Krishnan , KARCZEWICZ, Marta
IPC分类号： H04N19/169 , H04N19/70
摘要： A video encoder maintains a first reference picture list; maintains a second reference picture list; determines that a picture is an instantaneous decoding refresh (IDR) picture; determines that reference picture list syntax elements are present in a slice header for the IDR picture; and in response to determining that the picture is the IDR picture and that the reference picture list syntax elements are present in the slice header for the IDR picture, updates the first reference picture list and the second reference picture list such that no picture in the first reference picture list and no picture in the second reference picture list precedes, in output order or decoding order, any preceding instant random access point (IRAP) picture in decoding order.

18. 发明申请

WO2021178570A2 VIDEO CODING SYNTAX 审中-公开
公开(公告)号：WO2021178570A2
公开(公告)日：2021-09-10
申请号：PCT/US2021/020720
申请日：2021-03-03
申请人： QUALCOMM INCORPORATED
发明人： HE, Yong , SEREGIN, Vadim , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N19/70 , H04N19/107 , H04N19/157 , H04N19/169 , H04N19/30 , H04N19/105 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/188 , H04N19/196 , H04N19/597 , H04N21/816 , H04N21/85406
摘要： An example device for coding video data includes memory configured to store the video data and one or more processors implemented in circuitry and communicatively coupled to the memory. The one or more processors are configured to determine whether a sequence parameter set of the video data refers to a video parameter set. Based on the sequence parameter set not referring to the video parameter set, the one or more processors are configured to determine a value of a first syntax element to be indicative of a profile-tier-layer structure being signaled in the sequence parameter set and code the video data based on the profile-tier-layer structure.

19. 发明申请

WO2021154986A1 DECODED PICTURE BUFFER (DPB) PARAMETER SIGNALING FOR VIDEO CODING 审中-公开
公开(公告)号：WO2021154986A1
公开(公告)日：2021-08-05
申请号：PCT/US2021/015476
申请日：2021-01-28
申请人： QUALCOMM INCORPORATED
发明人： SEREGIN, Vadim , COBAN, Muhammed Zeyd
IPC分类号： H04N19/70 , H04N19/423 , H04N19/44
摘要： An example method includes decoding, when a sequence parameter set (SPS) of a current bitstream of video data is referred to by a layer that is an only layer of an output layer set (OLS), a decoded picture buffer (DPB) parameters syntax structure from the SPS; and reconstructing, based on the DPB parameters syntax structure, video data represented by the current bitstream.

20. 发明申请

WO2021133655A1 REFERENCE SUBPICTURE SCALING RATIOS FOR SUBPICTURES IN VIDEO CODING 审中-公开
公开(公告)号：WO2021133655A1
公开(公告)日：2021-07-01
申请号：PCT/US2020/065875
申请日：2020-12-18
申请人： QUALCOMM INCORPORATED
发明人： CHANG, Yao-Jen , SEREGIN, Vadim , COBAN, Muhammed Zeyd
IPC分类号： H04N19/33 , H04N19/587 , H04N19/174 , H04N19/597 , H04N19/137 , H04N19/172 , H04N19/176 , H04N19/187 , H04N19/51 , H04N19/70
摘要： A video decoder can be configured to determine that a first subpicture of a current picture has associated scaling parameters; receive the associated scaling parameters for the first subpicture of the current picture in response to determining that the first subpicture of the current picture has the associated scaling parameters; determine motion information, for a block of the first subpicture of the current picture, that identifies a subpicture of a reference picture; locate a prediction block for the block of the first subpicture of the current picture in the subpicture of the reference picture; and scale the prediction block based on the associated scaling parameters for the first subpicture of the current picture.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式