公开(公告)号：WO2016205693A3

公开(公告)日：2017-02-02

申请号：PCT/US2016038145

申请日：2016-06-17

Applicant: QUALCOMM INC

Inventor： ZHAO XIN ,  CHEN JIANLE ,  ZHANG LI ,  KARCZEWICZ MARTA

IPC: H04N19/176 ,  H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91

CPC classification number: H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91

Abstract: A device includes one or more processors configured to derive, from among a plurality of intra prediction modes, M most probable modes (MPMs) for intra prediction of a block of video data. A syntax element indicating whether a MPM index or a non-MPM index is used to indicate a selected intra prediction mode of the plurality of intra prediction modes for intra prediction of the block of video data is decoded. Based on the indicated one of the MPM index or the non-MPM index being the MPM index, the one or more processors select, for each of one or more context-modeled bins of the MPM index, based on intra prediction modes used to decode one or more neighboring blocks, a context index for the context-modeled bin. The one or more processors reconstruct the block of video data based on the selected intra prediction mode.

Abstract translation: 一种设备包括被配置为从多个帧内预测模式中导出用于视频数据块的帧内预测的M个最可能模式（MPM）的一个或多个处理器。 解码表示MPM索引或非MPM索引是否用于指示用于视频数据块的帧内预测的多个帧内预测模式的所选帧内预测模式的语法元素。 基于所指示的一个MPM索引或非MPM索引作为MPM索引，一个或多个处理器针对MPM索引的一个或多个上下文建模的存储体中的每一个，基于用于解码的帧内预测模式来选择 一个或多个相邻块，用于上下文建模的仓的上下文索引。 一个或多个处理器基于所选择的帧内预测模式重构视频数据块。

公开(公告)号：WO2015103392A3

公开(公告)日：2015-09-03

申请号：PCT/US2014072999

申请日：2014-12-31

Applicant: QUALCOMM INC

Inventor： PU WEI ,  KARCZEWICZ MARTA ,  SOLE ROJALS JOEL ,  GUO LIWEI ,  JOSHI RAJAN LAXMAN ,  ZOU FENG

IPC: H04N19/46 ,  H04N19/124 ,  H04N19/18 ,  H04N19/593 ,  H04N19/94

CPC classification number: H04N19/583 ,  H04N19/124 ,  H04N19/127 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/593 ,  H04N19/93 ,  H04N19/94

Abstract: In palette-based coding, a video coder may form a so-called "palette" as a table of colors representing the video data of a given block. The video coder may code index values for one or more pixels values of a current block of video data, where the index values indicate entries in the palette that represent the pixel values of the current block. A method includes determining a palette for a block of video data, identifying escape pixel(s) not associated with any palette entries, identifying a single quantization parameter (QP) value for all escape pixels of the block for a given color channel using a QP value for non-palette based coding of transform coefficients, dequantizing each escape pixel using the identified QP value, and determining pixel values of the block using the dequantized escape pixels and index values for any pixel(s) associated with any palette entries.

Abstract translation: 在基于调色板的编码中，视频编码器可以形成所谓的“调色板”，作为表示给定块的视频数据的颜色表。 视频编码器可以编码当前视频数据块的一个或多个像素值的索引值，其中索引值指示调色板中表示当前块的像素值的条目。 一种方法包括确定用于视频数据块的调色板，识别与任何调色板条目不相关联的转义像素，使用QP来识别给定颜色通道的块的所有转义像素的单个量化参数（QP）值 变换系数的基于非调色板的编码的值，使用所识别的QP值去量化每个逸出像素，以及使用去量化的转义像素和与任何调色板条目相关联的任何像素的索引值来确定块的像素值。

公开(公告)号：WO2014107366A3

公开(公告)日：2015-04-16

申请号：PCT/US2013077451

申请日：2013-12-23

Applicant: QUALCOMM INC

Inventor： CHEN JIANLE ,  SEREGIN VADIM ,  GUO LIWEI ,  KARCZEWICZ MARTA

IPC: H04N19/59

CPC classification number: H04N19/33 ,  H04N19/105 ,  H04N19/134 ,  H04N19/174 ,  H04N19/187 ,  H04N19/59

Abstract: An apparatus for coding video information may include a memory unit configured to store video information associated with a picture and a processor in communication with the memory unit configured to resample video information of a reference picture to obtain a resampled picture having a plurality of slices and a different picture size than a picture to be encoded. Further, the processor may determine slice definitions for slices in the resampled picture. The slices of the resampled picture may correspond to slices of the reference picture. The processor may determine, based on the slice definitions, whether a slice of the resampled picture satisfies one or more slice definition rules. In response to determining that the slice of the resampled picture does not satisfy at least one slice definition rule, the processor can modify the slice definition for the slice so as to satisfy the slice definition rule.

Abstract translation: 用于对视频信息进行编码的装置可以包括：存储单元，被配置为存储与图像相关联的视频信息;处理器，与所述存储器单元进行通信，所述存储器单元被配置为对参考图像的视频信息进行重新采样，以获得具有多个切片的再采样图像， 与要编码的图片不同的图片大小。 此外，处理器可以确定重采样图像中的切片的切片定义。 重采样图像的切片可以对应于参考图片的切片。 处理器可以基于切片定义来确定重采样图像的切片是否满足一个或多个切片定义规则。 响应于确定重采样图像的切片不满足至少一个切片定义规则，处理器可以修改切片的切片定义以满足切片定义规则。

公开(公告)号：WO2015006662A3

公开(公告)日：2015-03-26

申请号：PCT/US2014046301

申请日：2014-07-11

Applicant: QUALCOMM INC

Inventor： KIM WOO-SHIK ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

IPC: H04N19/70 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/82 ,  H04N19/86

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

Abstract: Performing deblock filtering on video data may include determining, for a first non-luma color component of the video data, whether to perform deblock filtering based on a first deblock filtering process or a second deblock filtering process. Next, deblock filtering may be performed on the first non-luma color component in accordance with the determined deblock filtering process.

Abstract translation: 对视频数据执行去块滤波可以包括针对视频数据的第一非亮度色彩分量确定是否基于第一去块滤波处理或第二去块滤波处理执行去块滤波。 接下来，可以根据确定的去块滤波处理对第一非亮度色彩分量执行去块滤波。

公开(公告)号：WO2015009629A2

公开(公告)日：2015-01-22

申请号：PCT/US2014046546

申请日：2014-07-14

Applicant: QUALCOMM INC

Inventor： RAPAKA KRISHNAKANTH ,  SEREGIN VADIM ,  CHEN JIANLE ,  WANG YE-KUI ,  KARCZEWICZ MARTA

IPC: H04N19/187

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/187 ,  H04N19/33 ,  H04N19/70

Abstract: An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a current layer and an enhancement layer, the current layer having a current picture. The processor is configured to determine whether the current layer may be coded using information from the enhancement layer, determine whether the enhancement layer has an enhancement layer picture corresponding to the current picture, and in response to determining that the current layer may be coded using information from the enhancement layer and that the enhancement layer has an enhancement layer picture corresponding to the current picture, code the current picture based on the enhancement layer picture. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编码的装置包括与存储器单元通信的存储器单元和处理器。 存储器单元被配置为存储与当前层和增强层相关联的视频信息，当前层具有当前图像。 处理器被配置为确定是否可以使用来自增强层的信息来编码当前层，确定增强层是否具有与当前图像对应的增强层图像，并且响应于确定当前层可以使用信息进行编码 并且增强层具有与当前画面相对应的增强层画面，基于增强层画面对当前画面进行编码。 处理器可以对视频信息进行编码或解码。

公开(公告)号：WO2014150864A2

公开(公告)日：2014-09-25

申请号：PCT/US2014024423

申请日：2014-03-12

Applicant: QUALCOMM INC

Inventor： GUO LIWEI ,  CHEN JIANLE ,  LI XIANG ,  RAPAKA KRISHNAKANTH ,  PU WEI ,  KARCZEWICZ MARTA

IPC: H04N19/187

CPC classification number: H04N19/439 ,  H04N19/117 ,  H04N19/132 ,  H04N19/187 ,  H04N19/33 ,  H04N19/34 ,  H04N19/46 ,  H04N19/59

Abstract: An apparatus configured to code video information comprises a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a reference layer (RL) and an enhancement layer (EL). The EL comprises an EL video unit and the RL comprises an RL video unit corresponding to the EL video unit. The processor is configured to perform upsampling and bit-depth conversion on pixel information of the RL video unit in a single combined process to determine predicted pixel information of the EL video unit, and determine the EL video unit using the predicted pixel information.

Abstract translation: 配置成对视频信息进行编码的装置包括存储器单元和与存储器单元通信的处理器。 存储器单元被配置为存储与参考层（RL）和增强层（EL）相关联的视频信息。 EL包括EL视频单元，并且RL包括对应于EL视频单元的RL视频单元。 处理器被配置为在单个组合处理中对RL视频单元的像素信息执行上采样和比特深度转换以确定EL视频单元的预测像素信息，并且使用预测像素信息来确定EL视频单元。

公开(公告)号：WO2014005033A3

公开(公告)日：2014-04-17

申请号：PCT/US2013048595

申请日：2013-06-28

Applicant: QUALCOMM INC

Inventor： COBAN MUHAMMED ZEYD ,  CHIEN WEI-JUNG ,  KARCZEWICZ MARTA

IPC: H04N19/00

CPC classification number: H04N19/00521 ,  H04N19/174 ,  H04N19/436 ,  H04N19/463 ,  H04N19/91

Abstract: The techniques of this disclosure allow for wavefront parallel processing of video data with limited synchronization points. In one example, a method of decoding video data comprises synchronizing decoding of a first plurality of video block rows at a beginning of each video block row in the first plurality of video block rows, decoding the first plurality of video block rows in parallel, wherein decoding does not include any synchronization between any subsequent video block in the first plurality of video block rows, and synchronizing decoding of a second plurality of video block rows at a beginning of each video block row in the second plurality of video block rows.

Abstract translation: 本公开的技术允许具有有限同步点的视频数据的波阵面并行处理。 在一个示例中，一种解码视频数据的方法包括：在第一多个视频块行中的每个视频块行的开始处同步第一多个视频块行的解码，并行地解码第一多个视频块行，其中 解码不包括第一多个视频块行中的任何后续视频块之间的任何同步，以及同步第二多个视频块行中的每个视频块行的开始处的第二多个视频块行的解码。

公开(公告)号：WO2013106674A3

公开(公告)日：2014-03-20

申请号：PCT/US2013021182

申请日：2013-01-11

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA ,  CHIEN WEI-JUNG ,  CHEN JIANLE

CPC classification number: H04N19/00072 ,  H04N19/129 ,  H04N19/13 ,  H04N19/18

Abstract: In an example, aspects of this disclosure relate to a process for video coding that includes determining that a set of support for selecting a context model to code a current significant coefficient flag of a transform coefficient of a block of video data includes at least one significant coefficient flag that is not available. The process also includes, based on the determination, modifying the set of support, and calculating a context for the current significant coefficient flag using the modified set of support. The process also includes applying context-adaptive binary arithmetic coding (CABAC) to code the current significant coefficient flag based on the calculated context.

Abstract translation: 在一个示例中，本公开的方面涉及用于视频编码的过程，其包括确定用于选择上下文模型的一组支持以编码视频数据块的变换系数的当前有效系数标志的方法包括至少一个有效值 系数标志不可用。 该过程还包括基于确定修改支持集合，以及使用修改的支持集合来计算当前重要系数标志的上下文。 该过程还包括应用上下文自适应二进制算术编码（CABAC）来基于所计算的上下文对当前有效系数标志进行编码。

公开(公告)号：WO2013052835A4

公开(公告)日：2013-07-25

申请号：PCT/US2012059010

申请日：2012-10-05

Applicant: QUALCOMM INC

Inventor： VAN DER AUWERA GEERT ,  JOSHI RAJAN LAXMAN ,  KARCZEWICZ MARTA

IPC: H04N7/26

CPC classification number: H04N19/00096 ,  H04N19/126 ,  H04N19/70 ,  H04N19/86

Abstract: In general, techniques are described for performing transform dependent de-blocking filtering, which may be implemented by a video encoding device. The video encoding device may apply a transform to a video data block to generate a block of transform coefficients, apply a quantization parameter to quantize the transform coefficients and reconstruct the block of video data from the quantized transform coefficients. The video encoding device may further determine at least one offset used in controlling de-blocking filtering based on the size of the applied transform, and perform de-blocking filtering on the reconstructed block of video data based on the determined offset. Additionally, the video encoder may specify a flag in a picture parameter set (PPS) that indicates whether the offset is specified in one or both of the PPS and a header of an independently decodable unit.

Abstract translation: 通常，描述用于执行变换相关去块滤波的技术，其可以由视频编码设备来实现。 视频编码设备可将变换应用于视频数据块以产生变换系数块，应用量化参数以量化变换系数并从量化的变换系数重建视频数据块。 视频编码设备可以基于所应用的变换的大小进一步确定用于控制解块滤波的至少一个偏移量，并且基于所确定的偏移量对重构的视频数据块执行解块滤波。 另外，视频编码器可以在图片参数集（PPS）中指定标志，该标志指示是否在PPS和可独立解码单元的报头中的一者或两者中指定偏移。

公开(公告)号：WO2013009845A3

公开(公告)日：2013-07-11

申请号：PCT/US2012046218

申请日：2012-07-11

Applicant: QUALCOMM INC ,  KARCZEWICZ MARTA ,  GUO LIWEI ,  WANG XIANGLIN

Inventor： KARCZEWICZ MARTA ,  GUO LIWEI ,  WANG XIANGLIN

IPC: H04N7/30

CPC classification number: H04N19/91

Abstract: This disclosure describes techniques for coding transform coefficients for a block of video data. According to these techniques, a video coder (a video encoder or video decoder) stores a first VLC table array selection table in memory, and an indication of at least one difference between the first VLC table array selection table and a second VLC table array selection table. The video coder reconstructs at least one entry of the second VLC table array selection table based on the first VLC table array selection table using the stored indication of the difference between the first VLC table array selection table and a second VLC table array selection table. The video coder uses the reconstructed at least one entry of the second VLC table array selection table to code at least one block of video data.

Abstract translation: 本发明描述用于译码视频数据块的变换系数的技术。 根据这些技术，视频编码器（视频编码器或视频解码器）将第一VLC表阵列选择表存储在存储器中，并且指示第一VLC表阵列选择表和第二VLC表阵列选择之间的至少一个差异 表。 视频译码器使用所存储的第一VLC表阵列选择表与第二VLC表阵列选择表之间的差的指示，基于第一VLC表阵列选择表重建第二VLC表阵列选择表的至少一个条目。 视频译码器使用重建的第二VLC表阵列选择表的至少一个条目来编码视频数据的至少一个块。