公开(公告)号：US20160295242A1

公开(公告)日：2016-10-06

申请号：US15178222

申请日：2016-06-09

Applicant: QUALCOMM Incorporated

Inventor： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

IPC: H04N19/60 ,  H04N19/44 ,  H04N19/91 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/129

CPC classification number: H04N19/60 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/45 ,  H04N19/625 ,  H04N19/91 ,  H04N19/93 ,  H04W88/02

Abstract: Disclosed are techniques for coding coefficients of a video block having a non-square shape defined by a width and a height, comprising coding one or more of x- and y-coordinates that indicate a position of a last non-zero coefficient within the block according to an associated scanning order, including coding each coordinate by determining one or more contexts used to code the coordinate based on one of the width and the height that corresponds to the coordinate, and coding the coordinate by performing a context adaptive entropy coding process based on the contexts. Also disclosed are techniques for coding information that identifies positions of non-zero coefficients within the block, including determining one or more contexts used to code the information based on one or more of the width and the height, and coding the information by performing a context adaptive entropy coding process based on the contexts.

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：US20160277762A1

公开(公告)日：2016-09-22

申请号：US15073171

申请日：2016-03-17

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/593 ,  H04N19/117 ,  H04N19/70 ,  H04N19/80 ,  H04N19/186 ,  H04N19/44

CPC classification number: H04N19/593 ,  H04N19/117 ,  H04N19/167 ,  H04N19/176 ,  H04N19/59

Abstract: Example techniques related to linear model (LM) prediction decoding or encoding are described. A video decoder or video encoder determines which filter to apply from a set of filters to downsample samples of a luma block and generate a predictive block for a corresponding chroma block based on characteristics of the chroma block.

Abstract translation: 描述与线性模型（LM）预测解码或编码相关的示例技术。 视频解码器或视频编码器确定从一组滤波器应用哪个滤波器到下采样亮度块的样本，并且基于色度块的特性为相应的色度块生成预测块。

公开(公告)号：US09438853B2

公开(公告)日：2016-09-06

申请号：US14811569

申请日：2015-07-28

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Muhammed Zeyd Coban ,  Marta Karczewicz ,  Nikolai Konrad Leung

IPC: H04N7/14 ,  H04N19/40 ,  H04N19/61 ,  H04N7/15 ,  H04N21/2365 ,  H04N21/2662 ,  H04N21/434 ,  H04L12/26 ,  H04L12/853 ,  H04L12/825 ,  H04L12/841 ,  H04L12/801

CPC classification number: H04N7/147 ,  H04L43/0852 ,  H04L43/0864 ,  H04L43/0894 ,  H04L43/106 ,  H04L43/16 ,  H04L47/12 ,  H04L47/2416 ,  H04L47/263 ,  H04L47/283 ,  H04N7/148 ,  H04N7/15 ,  H04N7/152 ,  H04N19/40 ,  H04N19/61 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/2662 ,  H04N21/4347 ,  Y02D50/10

Abstract: In an example, a method of processing data includes determining, by a receiver device, an allowable excess delay parameter based on a difference between a time at which received data is received by the receiver device and a time at which the received data is scheduled to be played out, where the allowable excess delay parameter indicates an amount of delay that is supportable by a channel between a sender device and the receiver device. The method also includes determining, by the receiver device, a sender bit rate increase for increasing a bit rate at which data is to be sent from the sender device to the receiver device based on the determined allowable excess delay parameter, and transmitting an indication of the sender bit rate increase to the sender device.

Abstract translation: 在一个示例中，处理数据的方法包括：基于接收机设备接收到的数据的时间与所接收的数据被调度的时间之间的差异，由接收机设备确定允许的超时延迟参数 播放，其中允许的超额延迟参数指示可由发送器设备和接收器设备之间的通道支持的延迟量。 该方法还包括由接收机设备确定发送器比特率增加，用于基于所确定的允许超额延迟参数来增加要从发送方设备向接收方设备发送数据的比特率，并发送 发送方比特率增加到发送方设备。

公开(公告)号：US09426473B2

公开(公告)日：2016-08-23

申请号：US13756659

申请日：2013-02-01

Applicant: Qualcomm Incorporated

Inventor： Yang Yu ,  Wei-Jung Chien ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N19/00 ,  H04N19/11 ,  H04N19/50 ,  H04N19/176 ,  H04N19/147 ,  H04N19/19

CPC classification number: H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/50

Abstract: In general, techniques are described for reducing the complexity of mode selection when selecting from multiple, different prediction modes. A video coding device comprising a processor may perform the techniques. The processor may compute approximate costs for a pre-defined set of intra-prediction modes identified in a current set. The current set of intra-prediction modes may include fewer modes than a total number of intra-prediction modes. The processor may compare approximate costs computed for one or more most probable intra-prediction modes to a threshold and replace one or more of the intra-prediction modes of the current set with one or more most probable intra-prediction modes. The processor may perform rate distortion analysis with respect to each intra-prediction mode identified in the current set and perform intra-prediction coding with respect to the current block using a mode of the current set.

Abstract translation: 一般来说，描述了当从多种不同的预测模式进行选择时降低模式选择的复杂度的技术。 包括处理器的视频编码装置可以执行这些技术。 处理器可以计算在当前集合中识别的预定义的帧内预测模式集合的近似成本。 当前的帧内预测模式集合可以包括比总内帧数据预测模式少的模式。 处理器可以将针对一个或多个最可能的帧内预测模式计算的近似成本与阈值进行比较，并用一个或多个最可能的帧内预测模式来替换当前集合的一个或多个帧内预测模式。 处理器可以针对当前集合中识别的每个帧内预测模式执行速率失真分析，并使用当前集合的模式对当前块执行帧内预测编码。

公开(公告)号：US09426418B2

公开(公告)日：2016-08-23

申请号：US14811491

申请日：2015-07-28

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Muhammed Zeyd Coban ,  Marta Karczewicz ,  Nikolai Konrad Leung

IPC: H04N7/14 ,  H04N19/40 ,  H04N19/61 ,  H04N7/15 ,  H04N21/2365 ,  H04N21/2662 ,  H04N21/434 ,  H04L12/26 ,  H04L12/853 ,  H04L12/825 ,  H04L12/841 ,  H04L12/801

CPC classification number: H04N7/147 ,  H04L43/0852 ,  H04L43/0864 ,  H04L43/0894 ,  H04L43/106 ,  H04L43/16 ,  H04L47/12 ,  H04L47/2416 ,  H04L47/263 ,  H04L47/283 ,  H04N7/148 ,  H04N7/15 ,  H04N7/152 ,  H04N19/40 ,  H04N19/61 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/2662 ,  H04N21/4347 ,  Y02D50/10

Abstract: In an example, a method of processing data includes transmitting data over a network at a first bit rate, identifying a reduction in a network link rate of the network from a first network link rate to a second network link rate, and in response to identifying the reduction in the network link rate, determining a recovery bit rate at which to transmit the data over the network, where the recovery bit rate is less than the second network link rate. The method also includes determining a buffering duration based on a difference between a time of the identification of the reduction in the network link rate and an estimated actual time of the reduction in the network link rate, and determining a recovery rate duration during which to transmit the data at the recovery bit rate based on the recovery bit rate and the buffering duration.

Abstract translation: 在一个示例中，处理数据的方法包括以第一比特率通过网络发送数据，识别网络的网络链路速率从第一网络链路速率降低到第二网络链路速率，以及响应于识别 网络链路速率的降低，确定通过网络发送数据的恢复比特率，恢复比特率小于第二网络链路速率。 该方法还包括基于网络链路速率降低的识别时间与网络链路速率降低的估计实际时间之间的差异来确定缓冲持续时间，以及确定在其中发送的恢复速率持续时间 基于恢复比特率和缓冲持续时间的恢复比特率的数据。

公开(公告)号：US09420280B2

公开(公告)日：2016-08-16

申请号：US13910995

申请日：2013-06-05

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Chengjie Tu ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N7/26 ,  H04N19/117 ,  H04N19/159 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33

Abstract: In one embodiment, a video coder for coding video data includes a processor and a memory. The processor selects a filter set from a multiple filter sets for upsampling reference layer video data based at least on a prediction operation mode for enhanced layer video data and upsamples the reference layer video data using the selected filter set. Some of the multiple filter sets have some different filter characteristics from one another, and the upsampled reference layer video data has the same spatial resolution as the enhanced layer video data. The processor further codes the enhanced layer video data based at least on the upsampled reference layer video data and the prediction operation mode. The memory stores the upsampled reference layer video data.

Abstract translation: 在一个实施例中，用于编码视频数据的视频编码器包括处理器和存储器。 处理器至少基于用于增强层视频数据的预测操作模式从多个滤波器组中选择用于上采样参考层视频数据的滤波器组，并使用所选择的滤波器组对参考层视频数据进行上采样。 多个滤波器组中的一些具有彼此具有一些不同的滤波器特性，并且上采样的参考层视频数据具有与增强层视频数据相同的空间分辨率。 处理器至少基于上采样的参考层视频数据和预测操作模式来对增强层视频数据进行编码。 存储器存储上采样的参考层视频数据。

公开(公告)号：US20160227224A1

公开(公告)日：2016-08-04

申请号：US15006563

申请日：2016-01-26

Applicant: QUALCOMM Incorporated

Inventor： Cheng-Teh Hsieh ,  Vadim Seregin ,  Jianle Chen ,  Rajan Laxman Joshi ,  Krishnakanth Rapaka ,  Marta Karczewicz

IPC: H04N19/186 ,  H04N19/625 ,  H04N19/44 ,  H04N19/176 ,  H04N21/2383 ,  H04N19/96 ,  H04N21/61 ,  H04N19/124 ,  H04N19/13 ,  H04N19/149 ,  H04N19/61 ,  H04N19/82 ,  H04N19/52 ,  H04N21/438

CPC classification number: H04N9/79 ,  H04N5/355 ,  H04N9/64 ,  H04N11/002 ,  H04N11/02 ,  H04N11/042 ,  H04N11/044 ,  H04N19/124 ,  H04N19/13 ,  H04N19/149 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/42 ,  H04N19/44 ,  H04N19/52 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82 ,  H04N19/96 ,  H04N21/2383 ,  H04N21/4382 ,  H04N21/6131 ,  H04N21/6181

Abstract: A device for encoding or decoding video data may clip first residual data based on a bit depth of the first residual data. The device may generate second residual data at least in part by applying an inverse Adaptive Color Transform (TACT) to the first residual data. Furthermore, the device may reconstruct, based on the second residual data, a coding block of a coding unit (CU) of the video data.

Abstract translation: 用于对视频数据进行编码或解码的设备可以基于第一残差数据的比特深度来剪辑第一残差数据。 该装置可以至少部分地通过对第一残差数据应用反自适应颜色变换（TACT）来产生第二残差数据。 此外，设备可以基于第二残差数据重建视频数据的编码单元（CU）的编码块。

公开(公告)号：US20160227214A1

公开(公告)日：2016-08-04

申请号：US15009657

申请日：2016-01-28

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Vadim Seregin ,  Chao Pang ,  Marta Karczewicz

IPC: H04N19/119 ,  H04N19/44 ,  H04N19/176 ,  H04N19/593 ,  H04N19/117 ,  H04N19/13 ,  H04N19/105 ,  H04N19/137 ,  H04N19/186 ,  H04N19/61 ,  H04N19/52 ,  H04N19/182

CPC classification number: H04N19/119 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/13 ,  H04N19/137 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/619 ,  H04N19/70

Abstract: In one example, a method of coding video data includes coding, from an encoded video bitstream, a syntax element that indicates a number of lines of video data that are in one or more of a plurality of sub-PUs of a current prediction unit (PU) of a current coding unit (CU) of video data. In this example, the method further includes determining, for each respective sub-PU of the plurality of sub-PUs, a respective vector that represents a displacement between the respective sub-PU and a respective predictor block from a plurality of previously decoded blocks of video data. In this example, the method further includes reconstructing each sub-PU of the plurality of sub-PUs based on the respective predictor blocks of video data.

Abstract translation: 在一个示例中，编码视频数据的方法包括从编码视频比特流中编码表示当前预测单元的多个子PU中的一个或多个中的一个或多个视频数据的行数的语法元素（ PU）视频数据的当前编码单元（CU）。 在该示例中，该方法还包括：针对多个子PU的每个相应的子PU确定表示来自多个先前解码的块的各个子PU与相应预测块之间的位移的相应向量 视频数据。 在该示例中，该方法还包括基于视频数据的各个预测块来重建多个子PU的每个子PU。

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。