公开(公告)号：US09288507B2

公开(公告)日：2016-03-15

申请号：US14309711

申请日：2014-06-19

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/51 ,  H04N19/583 ,  H04N19/597 ,  H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/176 ,  H04N19/513 ,  H04N19/70

Abstract: Techniques for advanced residual prediction (ARP) for coding video data may include inter-view ARP. Inter-view ARP may include identifying a disparity motion vector (DMV) for a current video block. The DMV is used for inter-view prediction of the current video block based on an inter-view reference video block. The techniques for inter-view ARP may also include identifying temporal reference video blocks in the current and reference views based on a temporal motion vector (TMV) of the inter-view reference video block, and determining a residual predictor block based on a difference between the temporal reference video blocks.

Abstract translation: 用于编码视频数据的高级残差预测（ARP）技术可以包括视频间ARP。 视图间ARP可以包括识别当前视频块的视差运动矢量（DMV）。 DMV用于基于视频间参考视频块的当前视频块的视图间预测。 用于互相观看的ARP的技术还可以包括基于视频间参考视频块的时间运动矢量（TMV）识别当前和参考视图中的时间参考视频块，以及基于视间参考视频块的时间参考视频块之间的差 时间参考视频块。

公开(公告)号：US20160029038A1

公开(公告)日：2016-01-28

申请号：US14773161

申请日：2013-03-15

Applicant: Xin ZHAO ,  Li ZHANG ,  Ying CHEN ,  QUALCOMM INCORPORATED

Inventor： Xin Zhao ,  Li Zhang ,  Ying Chen

IPC: H04N19/50 ,  H04N19/61 ,  H04N19/182 ,  H04N19/176 ,  H04N19/124 ,  H04N19/119

CPC classification number: H04N19/50 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182 ,  H04N19/597 ,  H04N19/61

Abstract: In an example, a process for coding video data includes determining a partitioning pattern for a block of depth values comprising assigning one or more samples of the block to a first partition and assigning one or more other samples of the block to a second partition. The process also includes determining a predicted value for at least one of the first partition and the second partition based on the determined partition pattern. The process also includes coding the at least one of the first partition and the second partition based on the predicted value.

Abstract translation: 在一个示例中，用于对视频数据进行编码的过程包括确定深度值块的分割模式，包括将块的一个或多个采样分配给第一分区，并将该块的一个或多个其它样本分配给第二分区。 该过程还包括基于所确定的分区模式来确定第一分区和第二分区中的至少一个的预测值。 该过程还包括基于预测值对第一分区和第二分区中的至少一个进行编码。

公开(公告)号：US20150382009A1

公开(公告)日：2015-12-31

申请号：US14750869

申请日：2015-06-25

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang

IPC: H04N19/513 ,  H04N19/80 ,  H04N19/573 ,  H04N19/176

CPC classification number: H04N19/513 ,  H04N19/176 ,  H04N19/523 ,  H04N19/573 ,  H04N19/597 ,  H04N19/80 ,  H04N19/82

Abstract: A video coder is configured to apply a separable bilinear interpolation filter when determining reference blocks as part of advanced residual prediction. Particularly, the video coder may determine, based on a motion vector of a current block in a current picture of video data, a location of a first reference block in a first reference picture. The video coder may also determine a location of a second reference block in a second reference picture. The video coder may apply a separable bilinear interpolation filter to samples of the second reference picture to determine samples of the second reference block. The video coder may apply the separable bilinear interpolation filter to samples of a third reference picture to determine samples of a third reference block. Each respective sample of a predictive block may be equal to a respective sample of the first reference block plus a respective residual predictor sample.

Abstract translation: 视频编码器被配置为当确定作为高级剩余预测的一部分的参考块时，应用可分离双线性内插滤波器。 特别地，视频编码器可以基于视频数据的当前图像中的当前块的运动矢量来确定第一参考图片中的第一参考块的位置。 视频编码器还可以确定第二参考图片中的第二参考块的位置。 视频编码器可以对第二参考图像的采样应用可分离双线性内插滤波器，以确定第二参考块的样本。 视频编码器可以对第三参考图像的采样应用可分离双线性内插滤波器，以确定第三参考块的样本。 预测块的每个相应样本可以等于第一参考块的相应样本加上相应的残差预测器样本。

公开(公告)号：US20150373327A1

公开(公告)日：2015-12-24

申请号：US14743776

申请日：2015-06-18

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Joel Sole Rojals ,  Marta Karczewicz

IPC: H04N19/124 ,  H04N19/70 ,  H04N19/176

CPC classification number: H04N19/124 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

Abstract: A device for decoding video data includes a memory configured to store video data and one or more processors configured to: receive a first block of the video data; determine a quantization parameter for the first block; in response to determining that the first block is coded using a color-space transform mode for residual data of the first block, modify the quantization parameter for the first block; perform a dequantization process for the first block based on the modified quantization parameter for the first block; receive a second block of the video data; receive a difference value indicating a difference between a quantization parameter for the second block and the quantization parameter for the first block; determine the quantization parameter for the second block based on the received difference value and the quantization parameter for the first block; and decode the second block based on the determined quantization parameter.

Abstract translation: 用于解码视频数据的设备包括被配置为存储视频数据的存储器和配置成：接收视频数据的第一块的一个或多个处理器; 确定第一块的量化参数; 响应于确定使用用于第一块的残差数据的颜色空间变换模式对第一块进行编码，修改第一块的量化参数; 基于修改的第一块的量化参数对第一块执行去量化处理; 接收第二个视频数据块; 接收指示第二块的量化参数与第一块的量化参数之间的差的差值; 基于接收到的差值和第一块的量化参数来确定第二块的量化参数; 并且基于所确定的量化参数来解码所述第二块。

公开(公告)号：US20150373315A1

公开(公告)日：2015-12-24

申请号：US14839326

申请日：2015-08-28

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang ,  Li Zhang

IPC: H04N13/00 ,  H04N19/91 ,  H04N19/44 ,  H04N19/124 ,  H04N13/04 ,  H04N19/597

CPC classification number: H04N19/50 ,  H04N13/161 ,  H04N13/349 ,  H04N19/124 ,  H04N19/44 ,  H04N19/597 ,  H04N19/91

Abstract: A video encoder generates, based on a reference picture set of a current view component, a reference picture list for the current view component. The reference picture set includes an inter-view reference picture set. The video encoder encodes the current view component based at least in part on one or more reference pictures in the reference picture list. In addition, the video encoder generates a bitstream that includes syntax elements indicating the reference picture set of the current view component. A video decoder parses, from the bitstream, syntax elements indicating the reference picture set of the current view component. The video decoder generates, based on the reference picture set, the reference picture list for the current view component. In addition, the video decoder decodes at least a portion of the current view component based on one or more reference pictures in the reference picture list.

Abstract translation: 视频编码器基于当前视图组件的参考画面集合生成当前视图组件的参考画面列表。 参考图像集包括视频间参考图像集合。 视频编码器至少部分地基于参考图片列表中的一个或多个参考图片对当前视图分量进行编码。 此外，视频编码器生成包括指示当前视图组件的参考画面组的语法元素的比特流。 视频解码器从比特流解析指示当前视图分量的参考图像组的语法元素。 视频解码器基于参考图像集合生成当前视图分量的参考图片列表。 此外，视频解码器基于参考图片列表中的一个或多个参考图片解码当前视图组件的至少一部分。

公开(公告)号：US20150358631A1

公开(公告)日：2015-12-10

申请号：US14729486

申请日：2015-06-03

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Joel Sole Rojals ,  Marta Karczewicz

IPC: H04N19/44 ,  H04N19/61 ,  H04N19/91 ,  H04N19/573 ,  H04N19/577 ,  H04N19/593 ,  H04N19/52 ,  H04N19/86

CPC classification number: H04N19/44 ,  H04N19/117 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86 ,  H04N19/91

Abstract: A video coder decodes a coding unit (CU) of video data. In decoding the video data, the video coder determines that the CU was encoded using the color space conversion. The video coder determines the initial quantization parameter (QP), determines the final QP that is equal to a sum of the initial QP and a QP offset, and inverse quantizes, based on the final QP, a coefficient block, then reconstructs the CU based on the inverse quantized coefficient blocks.

Abstract translation: 视频编码器解码视频数据的编码单元（CU）。 在解码视频数据时，视频编码器确定使用色彩空间转换对CU进行了编码。 视频编码器确定初始量化参数（QP），确定等于初始QP和QP偏移的和的最终QP，并且基于最终QP，系数块进行逆量化，然后重建基于CU 对逆量化系数块。

公开(公告)号：US20150264402A1

公开(公告)日：2015-09-17

申请号：US14656526

申请日：2015-03-12

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Marta Karczewicz ,  Joel Sole Rojals ,  Woo-Shik Kim

IPC: H04N19/60 ,  H04N19/18 ,  H04N19/186 ,  H04N19/136 ,  H04N19/12 ,  H04N19/11

CPC classification number: H04N19/126 ,  H04N19/102 ,  H04N19/103 ,  H04N19/11 ,  H04N19/12 ,  H04N19/134 ,  H04N19/136 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/186 ,  H04N19/196 ,  H04N19/33 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70

Abstract: In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine a bit-depth of a luma component of the video data and a bit-depth of a chroma component of the video data. In response to the bit-depth of the luma component being different than the bit depth of the chroma component, the video coder may modify one or both of the bit depth of the luma component and the bit depth of the chroma component such that the bit depths are equal. The video coder may further apply the color-space transform process in encoding the video data.

Abstract translation: 通常，本公开描述了使用颜色空间转换处理对视频块进行编码的技术。 诸如视频编码器或视频解码器的视频编码器可以确定视频数据的亮度分量的比特深度和视频数据的色度分量的位深度。 响应于亮度分量的比特深度不同于色度分量的比特深度，视频编码器可以修改亮度分量的比特深度和色度分量的比特深度中的一个或两个，使得比特 深度相等。 视频编码器还可以在编码视频数据时进一步应用色空间变换处理。

公开(公告)号：US20150264387A1

公开(公告)日：2015-09-17

申请号：US14659122

申请日：2015-03-16

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Joel Sole Rojals ,  Li Zhang ,  Marta Karczewicz

IPC: H04N19/513

Abstract: A method for motion estimation for screen and non-natural content coding is disclosed. In one aspect, the method may include selecting a candidate block of a first frame of the video data for matching with a current block of a second frame of the video data, calculating a first partial matching cost for matching a first subset of samples of the candidate block to the current block, and determining whether the candidate block has a lowest matching cost with the current block based at least in part on the first partial matching cost.

Abstract translation: 公开了一种用于屏幕和非自然内容编码的运动估计的方法。 一方面，该方法可以包括：选择视频数据的第一帧的候选块以与视频数据的第二帧的当前块匹配，计算用于匹配第一部分匹配成本 候选块到当前块，并且至少部分地基于第一部分匹配成本来确定候选块是否与当前块具有最低匹配成本。

公开(公告)号：US09131217B2

公开(公告)日：2015-09-08

申请号：US13705853

申请日：2012-12-05

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/50 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N19/50 ,  H04N19/597 ,  H04N19/70

Abstract: A video encoder generates a bitstream that includes a reference picture list modification (RPLM) command. The RPLM command belongs to a type of RPLM commands for inserting short-term reference pictures into reference picture lists. The RPLM command instructs a video decoder to insert a synthetic reference picture into the reference picture list. The video decoder decodes, based at least in part on syntax elements parsed from the bitstream, one or more view components and generates, based at least in part on the one or more view components, the synthetic reference picture. The video decoder modifies, in response to the RPLM commands, a reference picture list to include the synthetic reference picture. The video decoder may use one or more pictures in the reference picture list as reference pictures to perform inter prediction on one or more video blocks of a picture.

Abstract translation: 视频编码器生成包括参考图像列表修改（RPLM）命令的比特流。 RPLM命令属于用于将短期参考图像插入到参考图片列表中的RPLM命令的类型。 RPLM命令指示视频解码器将合成参考图像插入到参考图像列表中。 视频解码器至少部分地基于从比特流解析的语法元素解码一个或多个视图分量，并且至少部分地基于一个或多个视图组件生成合成参考图片。 视频解码器响应于RPLM命令修改参考图片列表以包括合成参考图片。 视频解码器可以使用参考图像列表中的一个或多个图像作为参考图像来对图像的一个或多个视频块执行帧间预测。

公开(公告)号：US20150055704A1

公开(公告)日：2015-02-26

申请号：US14463431

申请日：2014-08-19

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/51

CPC classification number: H04N19/52 ,  H04N19/51 ,  H04N19/597 ,  H04N19/96

Abstract: A prediction unit (PU) of a coding unit (CU) is split into two or more sub-PUs including a first sub-PU and a second sub-PU. A first motion vector of a first type is obtained for the first sub-PU and a second motion vector of the first type is obtained for the second sub-PU. A third motion vector of a second type is obtained for the first sub-PU and a fourth motion vector of the second type is obtained for the second sub-PU, such that the second type is different than the first type. A first portion of the CU corresponding to the first sub-PU is coded according to advanced residual prediction (ARP) using the first and third motion vectors. A second portion of the CU corresponding to the second sub-PU is coded according to ARP using the second and fourth motion vectors.

Abstract translation: 编码单元（CU）的预测单元（PU）被分成包括第一子PU和第二子PU的两个或更多个子PU。 对于第一子PU获得第一类型的第一运动矢量，并且获得第二子PU的第一类型的第二运动矢量。 对于第一子PU获得第二类型的第三运动矢量，并且为第二子PU获得第二类型的第四运动矢量，使得第二类型不同于第一类型。 对应于第一子PU的CU的第一部分使用第一和第三运动向量根据高级剩余预测（ARP）进行编码。 使用第二和第四运动矢量，根据ARP对与第二子PU相对应的CU的第二部分进行编码。