专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3451666A1 ADAPTIVE MOTION VECTOR RESOLUTION SIGNALING FOR VIDEO CODING 审中-实审
公开(公告)号：EP3451666A1
公开(公告)日：2019-03-06
申请号：EP18198746.2
申请日：2015-01-09
申请人： QUALCOMM Incorporated
发明人： LI, Xiang , SOLE ROJALS, Joel , KARCZEWICZ, Marta , LIU, Hongbin , ZHANG, Li , CHEN, Jianle
IPC分类号： H04N19/56 , H04N19/51 , H04N19/44 , H04N19/53 , H04N19/533 , H04N19/523
摘要： A method of coding video data comprises determining a motion vector difference value for a current block of video data and, in response to the motion vector difference value being equal to zero, determining that a motion vector for the current block has sub-pixel motion vector precision.

2. 发明公开

EP3308543A1 SYSTEMS AND METHODS OF DETERMINING ILLUMINATION COMPENSATION STATUS FOR VIDEO CODING 有权
公开(公告)号：EP3308543A1
公开(公告)日：2018-04-18
申请号：EP16730642.2
申请日：2016-06-07
申请人： Qualcomm Incorporated
发明人： LIU, Hongbin , CHEN, Ying , CHEN, Jianle , KARCZEWICZ, Marta
IPC分类号： H04N19/463 , H04N19/50 , H04N19/52 , H04N19/159 , H04N19/176 , H04N19/109 , H04N19/583 , H04N19/70
CPC分类号： H04N19/136 , H04N19/109 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/463 , H04N19/50 , H04N19/51 , H04N19/52 , H04N19/583 , H04N19/70
摘要： Techniques and systems are provided for coding video data. For example, a method of coding video data includes determining motion information for a current block and determining an illumination compensation status for the current block. The method further includes coding the current block based on the motion information and the illumination compensation status for the current block. In some examples, the method further includes determining the motion information for the current block based on motion information of a candidate block. In such examples, the method further includes determining an illumination compensation status of the candidate block and deriving the illumination compensation status for the current block based on the illumination compensation status of the candidate block.

3. 发明公开

EP3304910A1 ADVANCED ARITHMETIC CODER 审中-公开
公开(公告)号：EP3304910A1
公开(公告)日：2018-04-11
申请号：EP16730573.9
申请日：2016-05-27
申请人： Qualcomm Incorporated
发明人： ZHANG, Li , CHEN, Jianle , ZHAO, Xin , LI, Xiang , LIU, Hongbin , CHEN, Ying , KARCZEWICZ, Marta
IPC分类号： H04N19/70 , H03M7/40 , H04N19/46 , H04N19/13 , H04N19/91 , H04N19/184 , H04N19/146
CPC分类号： H04N19/13 , H03M7/4018 , H03M7/6011 , H04N19/126 , H04N19/139 , H04N19/146 , H04N19/159 , H04N19/174 , H04N19/184 , H04N19/42 , H04N19/46 , H04N19/70 , H04N19/91
摘要： An example method of entropy coding video data includes determining a window size of a plurality of window sizes for a context of a plurality of contexts used in a context-adaptive coding process to entropy code a value for a syntax element of the video data; entropy coding, based on a probability state of the context, a bin of the value for the syntax element; updating a probability state of the context based on the window size and the coded bin. The example method also includes entropy coding a next bin with the same context based on the updated probability state of the context.

4. 发明公开

EP3275186A1 DERIVING MOTION INFORMATION FOR SUB-BLOCKS IN VIDEO CODING 有权转让
标题翻译：在视频编码中为子块导出运动信息
公开(公告)号：EP3275186A1
公开(公告)日：2018-01-31
申请号：EP16715214.9
申请日：2016-03-25
申请人： Qualcomm Incorporated
发明人： LI, Xiang , CHEN, Ying , ZHANG, Li , LIU, Hongbin , CHEN, Jianle , KARCZEWICZ, Marta
IPC分类号： H04N19/513 , H04N19/46 , H04N19/109 , H04N19/176 , H04N19/44 , H04N19/56 , H04N19/57 , H04N19/96
CPC分类号： H04N19/513 , H04N19/109 , H04N19/119 , H04N19/139 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/52 , H04N19/56 , H04N19/57 , H04N19/70 , H04N19/96
摘要： In an example, a method of processing video data includes splitting a current block of video data into a plurality of sub-blocks for deriving motion information of the current block, where the motion information indicates motion of the current block relative to reference video data. The method also includes deriving, separately for each respective sub-block of the plurality of sub-blocks, motion information comprising performing a motion search for a first set of reference data that corresponds to a second set of reference data outside of each respective sub-block. The method also includes decoding the plurality of sub-blocks based on the derived motion information and without decoding syntax elements representative of the motion information.

5. 发明公开

EP3117606A1 SIMPLIFIED ADVANCED RESIDUAL PREDICTION FOR 3D-HEVC 有权
标题翻译：简化3D-HEVC的高级剩余预测
公开(公告)号：EP3117606A1
公开(公告)日：2017-01-18
申请号：EP14885463.1
申请日：2014-03-13
申请人： Qualcomm Incorporated
发明人： LIU, Hongbin , CHEN, Ying
IPC分类号： H04N13/00
CPC分类号： H04N19/597 , H04N13/161 , H04N19/105 , H04N19/176 , H04N19/186 , H04N19/513 , H04N19/577
摘要： This disclosure describes techniques for 3D video coding. In particular, this disclosure is related to techniques for advanced residual prediction (ARP) in 3D-HEVC. According to one techniques of this disclosure, when performing inter-view ARP for a bi-directionally predicted block, the video coder may determine a motion vector for a first corresponding block as part of performing ARP for a first prediction direction and reuse that determined motion vector when performing ARP for a second prediction direction. According to another technique, for a bi-directionally predicted block, a video coder may apply ARP in only one direction for a chroma component of a block but apply ARP in two directions for a luma component of the block. According to another technique, a video coder may selectively apply ARP to chroma components based on block size. These simplifications, as well as other techniques included in this disclosure, may reduce overall coding complexity.
摘要翻译：本公开描述了用于3D视频编码的技术。具体而言，本公开涉及用于3D-HEVC中的高级残差预测（ARP）的技术。根据本发明的一种技术，当执行双向预测块的视图间ARP时，视频译码器可确定第一对应块的运动向量作为对第一预测方向执行ARP的一部分，并重新使用所确定的运动当对第二预测方向执行ARP时的向量。根据另一种技术，对于双向预测块，视频译码器可将ARP仅在一个方向上应用于块的色度分量，但针对块的亮度分量在两个方向上应用ARP。根据另一种技术，视频译码器可基于区块大小选择性地将ARP应用于色度分量。这些简化以及本公开中包括的其他技术可以降低整体编码复杂度。

6. 发明公开

EP3080987A1 SIGNALING OF SIMPLIFIED DEPTH CODING (SDC) FOR DEPTH INTRA-AND INTER PREDICTION MODES IN 3D VIDEO CODING 有权
标题翻译：简化LOW CODE（SDC）的用于帧内在三维视频编码的改进与帧间预测SIGNALING
公开(公告)号：EP3080987A1
公开(公告)日：2016-10-19
申请号：EP13899341.5
申请日：2013-12-13
申请人： Qualcomm Incorporated
发明人： ZHANG, Li , LIU, Hongbin , CHEN, Ying
IPC分类号： H04N19/00
CPC分类号： H04N19/107 , H04N19/159 , H04N19/182 , H04N19/463 , H04N19/597 , H04N19/70 , H04N19/91
摘要： This disclosure describes techniques for signaling and processing information indicating simplified depth coding (SDC) for depth intra-prediction and depth inter- prediction modes in a 3D video coding process, such as a process defined by the 3D- HEVC extension to HEVC. In some examples, the disclosure describes techniques for unifying the signaling of SDC for depth intra-prediction and depth inter-prediction modes in 3D video coding. The signaling of SDC can be unified so that a video encoder or video decoder uses the same syntax element for signaling SDC for both the depth intra- prediction mode and the depth inter-prediction mode. Also, in some examples, a video coder may signal and/or process a residual value generated in the SDC mode using the same syntax structure, or same type of syntax structure, for both the depth intra- prediction mode and depth inter-prediction mode.

7. 发明公开

EP3050294A1 RESIDUAL CODING FOR DEPTH INTRA PREDICTION MODES 审中-公开
标题翻译：用于深度预测模式的剩余编码
公开(公告)号：EP3050294A1
公开(公告)日：2016-08-03
申请号：EP14847347.3
申请日：2014-09-26
申请人： Qualcomm Incorporated
发明人： LIU, Hongbin , CHEN, Ying , ZHANG, Li , ZHAO, Xin
IPC分类号： H04N13/00
CPC分类号： H04N19/597 , H04N19/11 , H04N19/13 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/18 , H04N19/593 , H04N19/70 , H04N19/91
摘要： A video coder may perform a simplified depth coding (SDC) mode, including simplified residual coding, to code a depth block according to any of a variety of, e.g., at least three, depth intra prediction modes. For example, the video coder may perform the SDC mode for coding a depth block according to depth modeling mode (DMM) 3, DMM 4, or a region boundary chain coding mode. In such examples, the video coder may partition the depth block, and code respective DC residual values for each partition. In some examples, the video coder may perform the SDC mode for coding a depth block according to an intra prediction mode, e.g., an HEVC base specification intra prediction mode, such as a DC intra prediction mode or one of the directional intra prediction modes. In such examples, the video coder may code a single DC residual value for the depth block.
摘要翻译：视频译码器可执行包含简化残差译码的简化深度译码（SDC）模式以根据多种（例如，至少三种）深度帧内预测模式中的任一者对深度块进行译码。例如，视频译码器可根据深度建模模式（DMM）3，DMM4或区域边界链编码模式执行用于编码深度块的SDC模式。在这样的示例中，视频编码器可以对深度块进行分区，并对每个分区的相应DC残差值进行编码。在一些示例中，视频译码器可执行SDC模式以根据例如HEVC基本规格帧内预测模式（例如DC帧内预测模式或定向帧内预测模式中的一者）的帧内预测模式译码深度块。在这样的示例中，视频译码器可编码深度块的单个DC残余值。

8. 发明公开

EP3251364A1 ENHANCED MULTIPLE TRANSFORMS FOR PREDICTION RESIDUAL 审中-公开
标题翻译：用于预测残差的增强多变换
公开(公告)号：EP3251364A1
公开(公告)日：2017-12-06
申请号：EP16705365.1
申请日：2016-01-26
申请人： Qualcomm Incorporated
发明人： ZHAO, Xin , LEE, Sungwon , CHEN, Jianle , ZHANG, Li , LI, Xiang , CHEN, Ying , KARCZEWICZ, Marta , LIU, Hongbin
IPC分类号： H04N19/60 , H04N19/12 , H04N19/157 , H04N19/167 , H04N19/136 , H04N19/176 , H04N19/70 , H04N19/159
CPC分类号： H04N19/159 , H04N19/12 , H04N19/136 , H04N19/167 , H04N19/176 , H04N19/60 , H04N19/70
摘要： Example techniques are described to determine transforms to be used during video encoding and video decoding. A video encoder and a video decoder may select transform subsets that each identify one or more candidate transforms. The video encoder and the video decoder may determine transforms from the selected transform subsets.

9. 发明公开

EP3050295A1 SUB-PREDICTION UNIT (PU) BASED TEMPORAL MOTION VECTOR PREDICTION IN HEVC AND SUB-PU DESIGN IN 3D-HEVC 有权
标题翻译： AUF EINERSUBPRÄDIKTIONSEINHEITBASERERENDE ZEITLICHE BEWEGUNGSVEKTORVORHERSHERSAGE IN HEVC UNDSUBPRÄDIKTIONSEINHEITSKONZEPTIN 3D-HEVC
公开(公告)号：EP3050295A1
公开(公告)日：2016-08-03
申请号：EP14782053.4
申请日：2014-09-26
申请人： Qualcomm Incorporated
发明人： CHEN, Ying , VAN DER AUWERA, Geert , ZHANG, Li , LIU, Hongbin
IPC分类号： H04N19/00
CPC分类号： H04N19/597 , H04N19/197 , H04N19/52 , H04N19/53 , H04N19/56
摘要： Techniques are described for sub-prediction unit (PU) based motion prediction for video coding in HEVC and 3D-HEVC. In one example, the techniques include an advanced temporal motion vector prediction (TMVP) mode to predict sub-PUs of a PU in single layer coding for which motion vector refinement may be allowed. The advanced TMVP mode includes determining motion vectors for the PU in at least two stages to derive motion information for the PU that includes different motion vectors and reference indices for each of the sub-PUs of the PU. In another example, the techniques include storing separate motion information derived for each sub-PU of a current PU predicted using a sub-PU backward view synthesis prediction (BVSP) mode even after motion compensation is performed. The additional motion information stored for the current PU may be used to predict subsequent PUs for which the current PU is a neighboring block.
摘要翻译：描述了用于在HEVC和3D-HEVC中用于视频编码的子预测单元（PU）的运动预测技术。在一个示例中，这些技术包括高级时间运动矢量预测（TMVP）模式，用于预测可以允许运动矢量细化的单层编码中的PU的子PU。高级TMVP模式包括至少在两个阶段中确定PU的运动矢量，以导出PU的运动信息，其包括PU的每个子PU的不同运动矢量和参考索引。在另一示例中，该技术包括存储针对使用子PU后视合成预测（BVSP）模式预测的当前PU预测的每个子PU导出的分离运动信息，即使在执行运动补偿之后。为当前PU存储的附加运动信息可以用于预测当前PU是相邻块的后续PU。

10. 发明公开

EP3028466A1 SIMPLIFIED ADVANCED MOTION PREDICTION FOR 3D-HEVC 有权
标题翻译：三维3D-HEVC ERWEITERTE VEREINFACHTEBEWEGUNGSPRÄDIKTION
公开(公告)号：EP3028466A1
公开(公告)日：2016-06-08
申请号：EP13889840.8
申请日：2013-12-24
申请人： Qualcomm Incorporated
发明人： ZHANG, Li , CHEN, Ying , THIRUMALAI, Vijayaraghavan , LIU, Hongbin
IPC分类号： H04N19/51
CPC分类号： H04N19/597 , H04N19/52 , H04N19/70 , H04N19/96
摘要： A video coder determines a candidate for inclusion in a candidate list for a current prediction unit (PU). The candidate is based on motion parameters of a plurality of sub-PUs of the current PU. If a reference block corresponding to a sub-PU is not coded using motion compensated prediction, the video coder sets the motion parameters of the sub-PU to default motion parameters. For each respective sub-PU from the plurality of sub-PUs, if a reference block for the respective sub-PU is not coded using motion compensated prediction, the motion parameters of the respective sub-PU are not set in response to a subsequent determination that a reference block for any later sub-PU in an order is coded using motion compensated prediction.
摘要翻译：视频编码器确定用于包括在当前预测单元（PU）的候选列表中的候选。候选者基于当前PU的多个子PU的运动参数。如果对应于子PU的参考块不使用运动补偿预测编码，则视频编码器将子PU的运动参数设置为默认运动参数。对于来自多个子PU的各个子PU，如果用于各个子PU的参考块不使用运动补偿预测编码，则相应子PU的运动参数不响应于随后的确定而被设置使用运动补偿预测编码用于任何后续子PU的参考块。

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