公开(公告)号：US10306265B2

公开(公告)日：2019-05-28

申请号：US15108764

申请日：2013-12-30

Applicant: QUALCOMM Incorporated

Inventor： Hongbin Liu ,  Ying Chen

IPC: H04N19/597 ,  H04N19/96 ,  H04N19/593 ,  H04N19/176 ,  H04N13/161 ,  H04N19/70

Abstract: In general, this disclosure describes techniques for simplifying SDC coding of large intra-prediction blocks, such as 64×64 blocks, in a 3D video coding process, such as 3D-HEVC. In some examples, the techniques may include processing 64×64 intra-prediction blocks as four 32×32 intra-prediction blocks in intra SDC. Processing large intra-prediction blocks as multiple, smaller intra-prediction blocks in intra SDC may reduce maximum buffer size requirements in the intra SDC process.

公开(公告)号：US10057574B2

公开(公告)日：2018-08-21

申请号：US15040913

申请日：2016-02-10

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Hongbin Liu ,  Ying Chen ,  Xin Zhao ,  Li Zhang ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/117 ,  H04N19/70 ,  H04N19/61 ,  H04N19/593 ,  H04N19/176 ,  H04N19/50 ,  H04N19/503 ,  H04N19/82 ,  H04N19/86

CPC classification number: H04N19/117 ,  H04N19/176 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

Abstract: Examples include a device for coding video data, the device including a memory configured to store video data, and one or more processors configured to obtain adaptive loop filtering (ALF) information for a current coding tree unit (CTU) from one or more of: (i) one or more spatial neighbor CTUs of the current CTU or (ii) one or more temporal neighbor CTUs of the current CTU, to form a candidate list based at least partially on the obtained ALF information for the current CTU, and to perform a filtering operation on the current CTU using ALF information associated with a candidate from the candidate list. Coding video data includes encoding video data, decoding video data, or both encoding and decoding video data.

公开(公告)号：US20160366416A1

公开(公告)日：2016-12-15

申请号：US15174834

申请日：2016-06-06

Applicant: QUALCOMM Incorporated

Inventor： Hongbin Liu ,  Ying Chen ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/136 ,  H04N19/119 ,  H04N19/176 ,  H04N19/51

CPC classification number: H04N19/136 ,  G06T7/20 ,  G06T7/246 ,  G06T7/248 ,  H04N19/109 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/463 ,  H04N19/50 ,  H04N19/51 ,  H04N19/52 ,  H04N19/583 ,  H04N19/70

Abstract: 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.

Abstract translation: 提供了用于编码视频数据的技术和系统。 例如，编码视频数据的方法包括确定当前块的运动信息并确定当前块的照明补偿状态。 该方法还包括基于当前块的运动信息和照明补偿状态对当前块进行编码。 在一些示例中，该方法还包括基于候选块的运动信息确定当前块的运动信息。 在这种示例中，该方法还包括基于候选块的照明补偿状态来确定候选块的照明补偿状态并导出当前块的照明补偿状态。

公开(公告)号：US20160316200A1

公开(公告)日：2016-10-27

申请号：US15103798

申请日：2013-12-13

Applicant: Li ZHANG ,  Hongbin LIU ,  Ying CHEN ,  QUALCOMM INCORPORATED

Inventor： Li Zhang ,  Hongbin Liu ,  Ying Chen

IPC: H04N19/107 ,  H04N19/70 ,  H04N19/463 ,  H04N19/597 ,  H04N19/159 ,  H04N19/182

CPC classification number: H04N19/107 ,  H04N19/159 ,  H04N19/182 ,  H04N19/463 ,  H04N19/597 ,  H04N19/70 ,  H04N19/91

Abstract: 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 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.

Abstract translation: 本公开描述了用于在3D视频编码过程（诸如由HEVC的3D-HEVC扩展定义的过程）中用于信令和处理用于指示用于深度帧内预测和深度帧间预测模式的简化深度编码（SDC）的信息的技术。 在一些示例中，本公开描述了用于在3D视频编码中统一SDC的信令用于深度帧内预测和深度帧间预测模式的技术。 可以统一SDC的信令，使得视频编码器或视频解码器使用相同的语法元素用于信令SDC用于深度帧内预测模式和深度帧间预测模式。 此外，在一些示例中，视频编码器可以使用与深度帧内预测模式和深度帧间预测模式两者相同的语法结构或相同类型的语法结构来处理在SDC模式中生成的残差值。

公开(公告)号：US20160286232A1

公开(公告)日：2016-09-29

申请号：US15080480

申请日：2016-03-24

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Ying Chen ,  Li Zhang ,  Hongbin Liu ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/119 ,  H04N19/139 ,  H04N19/44 ,  H04N19/70

CPC classification number: H04N19/513 ,  H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56 ,  H04N19/57 ,  H04N19/70 ,  H04N19/96

Abstract: 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.

Abstract translation: 在一个示例中，一种处理视频数据的方法包括：将当前视频数据块分解成多个子块，用于导出当前块的运动信息，其中运动信息指示当前块相对于参考视频数据的运动。 该方法还包括为多个子块中的每个相应子块分别导出运动信息，其包括对与第一组参考数据进行运动搜索，第一组参考数据对应于每个各个子块之外的第二组参考数据， 块。 该方法还包括基于导出的运动信息来解码多个子块，并且不对代表运动信息的语法元素进行解码。

公开(公告)号：US20160219283A1

公开(公告)日：2016-07-28

申请号：US15006994

申请日：2016-01-26

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Hongbin Liu ,  Ying Chen ,  Li Zhang ,  Xiang Li ,  Xin Zhao ,  Marta Karczewicz

IPC: H04N19/186 ,  H04N19/65 ,  H04N19/52 ,  H04N19/593 ,  H04N19/96 ,  H04N19/13 ,  H04N19/124 ,  H04N19/105 ,  H04N19/176 ,  H04N19/44

CPC classification number: H04N19/186 ,  H04N19/105 ,  H04N19/463 ,  H04N19/593

Abstract: A system and method for encoding and decoding video data. A predicted residual signal of a target color component is determined as a function of one or more linear parameters of a linear model and of a residual signal of a source color component. A residual signal of the target color component is determined as a function of a remaining residual signal of the target color component and of the predicted residual signal of the target color component.

Abstract translation: 一种用于对视频数据进行编码和解码的系统和方法。 根据线性模型的一个或多个线性参数和源颜色分量的残留信号来确定目标颜色分量的预测残差信号。 根据目标颜色成分的剩余残留信号和目标色彩分量的预测残差信号确定目标色彩分量的残差信号。

公开(公告)号：US20160165263A1

公开(公告)日：2016-06-09

申请号：US14906860

申请日：2013-12-24

Applicant: QUALCOMM INCORPORATED

Inventor： Li Zhang ,  Ying Chen ,  Vijayaraghavan Thirumalai ,  Hongbin Liu

IPC: H04N19/597 ,  H04N19/52 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/597 ,  H04N19/52 ,  H04N19/70 ,  H04N19/96

Abstract: 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.

Abstract translation: 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进行编码，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，如果不使用运动补偿预测对各个子PU的参考块进行编码，则不响应于随后的确定来设置各个子PU的运动参数 使用运动补偿预测编码用于任何后续子PU的参考块。

公开(公告)号：US10574965B2

公开(公告)日：2020-02-25

申请号：US15120067

申请日：2014-03-13

Applicant: Hongbin Liu ,  Ying Chen ,  QUALCOMM Incorporated

Inventor： Hongbin Liu ,  Ying Chen

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/513 ,  H04N19/186 ,  H04N19/577 ,  H04N13/15 ,  H04N13/271 ,  H04N19/105 ,  H04N13/161 ,  H04N13/282 ,  H04N13/243

Abstract: 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.

公开(公告)号：US10567799B2

公开(公告)日：2020-02-18

申请号：US15119057

申请日：2014-03-07

Applicant: QUALCOMM Incorporated ,  Hongbin Liu ,  Ying Chen

Inventor： Hongbin Liu ,  Ying Chen

IPC: H04N19/597 ,  H04N19/54 ,  H04N19/587 ,  H04N19/543 ,  H04N19/533 ,  H04N19/59 ,  H04N19/56 ,  H04N19/53 ,  H04N19/52 ,  H04N13/00

Abstract: This disclosure describes techniques for simplifying depth inter mode coding in a three-dimensional (3D) video coding process, such as 3D-HEVC. The techniques include generating a motion parameter candidate list, e.g., merging candidate list, for a current depth prediction unit (PU). In some examples, the described techniques include determining that a sub-PU motion parameter inheritance (MPI) motion parameter candidate is unavailable for inclusion in the motion parameter candidate list for the current depth PU if motion parameters of a co-located texture block to a representative block of the current depth PU are unavailable. In some examples, the described techniques include deriving a sub-PU MPI candidate for inclusion in the motion parameter candidate list for the current depth PU only if a partition mode of the current depth PU is 2N×2N.

公开(公告)号：US10567789B2

公开(公告)日：2020-02-18

申请号：US15318340

申请日：2014-06-16

Applicant: QUALCOMM Incorporated ,  Ying Chen ,  Hongbin Liu

Inventor： Ying Chen ,  Hongbin Liu

IPC: H04N19/52 ,  H04N19/56 ,  H04N19/70 ,  H04N19/517 ,  H04N19/176

Abstract: A device for coding three-dimensional includes a video coder configured to add one or more motion vector candidates to a motion vector candidate list; identify, from the one or more motion vector candidates in the motion vector candidate list, a disparity motion vector candidate; based on the disparity motion vector candidate, determine a disparity shifted motion vector (DSMV) candidate; and add the DSMV candidate to the motion vector candidate list; and code the block of video data using a motion vector corresponding to the identified candidate.