公开(公告)号：US20150319462A1

公开(公告)日：2015-11-05

申请号：US14700953

申请日：2015-04-30

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Ye-Kui Wang ,  Fnu Hendry ,  Krishnakanth Rapaka

IPC: H04N19/85

CPC classification number: H04N21/4516 ,  H04N19/127 ,  H04N19/157 ,  H04N19/187 ,  H04N19/29 ,  H04N19/30 ,  H04N19/39 ,  H04N19/436 ,  H04N19/44 ,  H04N19/48 ,  H04N19/66 ,  H04N19/70 ,  H04N19/85 ,  H04N21/234327 ,  H04N21/816

Abstract: A video processing device is configured to obtain, from a bitstream, one or more syntax elements indicating one or more partitioning schemes for an output layer set. For each respective partitioning scheme of the one or more partitioning schemes, the respective partitioning scheme specifies a division of the output layer set into one or more partitions. Each layer in the output layer set belongs to exactly one partition in the respective partitioning scheme. Additionally, the video processing device obtains, from a Supplemental Enhancement Information (SEI) message or video usability information (VUI) in a video parameter set (VPS), hypothetical reference decoder (HRD) parameters for each of the one or more partitioning schemes. For each respective partition of the respective partitioning scheme, the video processing device tests, based on the HRD parameters for the respective partitioning scheme, the respective partition for conformance to a video coding standard.

Abstract translation: 视频处理设备被配置为从比特流获得指示输出层集合的一个或多个分区方案的一个或多个语法元素。 对于一个或多个分区方案的每个相应的分区方案，相应的分区方案指定输出层集合划分成一个或多个分区。 输出层集合中的每个层都属于相应分区方案中的一个分区。 此外，视频处理装置从视频参数集（VPS）中的补充增强信息（SEI）消息或视频可用性信息（VUI）获得用于一个或多个分割方案中的每一个的假设参考解码器（HRD）参数。 对于相应分区方案的每个相应分区，视频处理设备基于相应分区方案的HRD参数来测试用于符合视频编码标准的相应分区。

公开(公告)号：US20150264373A1

公开(公告)日：2015-09-17

申请号：US14656573

申请日：2015-03-12

Applicant: QUALCOMM Incorporated

Inventor： Ye-kui Wang ,  Krishnakanth Rapaka ,  Jianle Chen ,  FNU Hendry ,  Adarsh Krishnan Ramasubramonian

IPC: H04N19/44 ,  H04N19/42

CPC classification number: H04N19/44 ,  H04N19/156 ,  H04N19/30 ,  H04N19/42

Abstract: Methods for defining decoder capability for decoding multi-layer bitstreams containing video information, in which the decoder is implemented based on multiple single-layer decoder cores, are disclosed. In one aspect, the method may include identifying at least one allocation of layers of the bitstream into at least one set of layers. The method may further include detecting whether each set of layers is capable of being exclusively assigned to one of the decoder cores for the decoding of the bitstream. The method may also include determining whether the decoder is capable of decoding the bitstream based at least in part on detecting whether each set of layers is capable of being exclusively assigned to one of the decoder cores.

Abstract translation: 公开了一种用于定义解码器能力的方法，用于解码包含视频信息的多层比特流，其中解码器基于多个单层解码器核实现。 在一个方面，该方法可以包括将比特流的层的至少一个分配识别为至少一组层。 该方法还可以包括检测每组层是否能够被专门地分配给解码器核心之一来解码比特流。 该方法还可以包括：至少部分地基于检测每组层是否能够专门分配给解码器核之一来确定解码器是否能够对比特流进行解码。

公开(公告)号：US20150201204A1

公开(公告)日：2015-07-16

申请号：US14598117

申请日：2015-01-15

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Krishnakanth Rapaka ,  Marta Karczewicz

IPC: H04N19/33 ,  H04N19/186 ,  H04N19/187

CPC classification number: H04N19/33 ,  H04N19/30 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

Abstract: Systems and methods for encoding and decoding scalable video information are disclosed. The system may have a memory unit configured to store syntax elements for a multi-layer picture. The system may further comprise one or more processors operationally coupled to the memory unit. The processors may be configured to determine at least one phase offset value between a reference layer sample position in the multi-layer picture and a corresponding enhancement layer sample position. The processors may be further configured to generate a syntax element indicating the phase offset value the phase offset value representing a phase offset of a luma sample position and a chroma sample position of the reference layer position.

Abstract translation: 公开了用于编码和解码可缩放视频信息的系统和方法。 系统可以具有被配置为存储多层图像的语法元素的存储器单元。 系统还可以包括可操作地耦合到存储器单元的一个或多个处理器。 处理器可以被配置为确定多层图像中的参考层采样位置与对应的增强层采样位置之间的至少一个相位偏移值。 处理器还可以被配置为生成表示相位偏移值的语法元素，相位偏移值表示亮度采样位置的相位偏移和参考层位置的色度采样位置。

公开(公告)号：US20150016540A1

公开(公告)日：2015-01-15

申请号：US14331004

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian

IPC: H04N19/176 ,  H04N19/167

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/136 ,  H04N19/167 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/436 ,  H04N19/70

Abstract: In an example, a method of coding video data includes determining a location of a reference sample associated with a reference picture of video data based on one or more scaled offset values, where the reference picture is included in a first layer of a multi-layer bitstream and the one or more scaled offset values indicate a difference in scale between the first layer and a second, different layer. The method also includes determining a location of a collocated reference block of video data in the first layer based on the location of the reference sample, and coding a current block of video data in the second layer relative to the collocated reference block.

Abstract translation: 在一个示例中，视频数据的编码方法包括基于一个或多个缩放的偏移值来确定与视频数据的参考图片相关联的参考样本的位置，其中参考图像被包括在多层的第一层中 比特流和一个或多个缩放的偏移值指示第一层和第二不同层之间的比例差异。 该方法还包括基于参考样本的位置来确定第一层中并行的视频数据参考块的位置，以及相对于并置参考块对第二层中的当前视频数据块进行编码。

公开(公告)号：US20150016520A1

公开(公告)日：2015-01-15

申请号：US14330985

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian

IPC: H04N19/50

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/136 ,  H04N19/167 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/436 ,  H04N19/70

Abstract: In an example, a method of coding video data includes coding data of a video parameter set (VPS) of a multi-layer bitstream, including at least one of data that indicates whether any layers of the multi-layer bitstream have an inter-layer prediction restriction or data that indicates whether tile boundaries are aligned between at least two of the layers of the multi-layer bitstream, and coding the multi-layer bitstream in accordance with the data of the VPS.

Abstract translation: 在一个示例中，视频数据编码方法包括编码多层比特流的视频参数集（VPS）的数据，包括指示多层比特流的任何层是否具有层之间的至少一个 预测限制或指示瓦片边界是否在多层比特流的至少两个层之间对齐的数据，以及根据VPS的数据对多层比特流进行编码。

公开(公告)号：US20140254667A1

公开(公告)日：2014-09-11

申请号：US14196479

申请日：2014-03-04

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Xiang Li ,  Jianle Chen ,  Ye-Kui Wang ,  Wei Pu

IPC: H04N19/503 ,  H04N19/436 ,  H04N19/80

CPC classification number: H04N19/17 ,  H04N19/33 ,  H04N19/436 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: In one example, a device for coding video data includes a video coder configured to code data indicating whether tile boundaries of different layers of video data are aligned and whether inter-layer prediction is allowed along or across tile boundaries of enhancement layer blocks, code an enhancement layer block in an enhancement layer tile of the video data without using inter-layer prediction from a collocated base layer block for which inter-layer filtering or reference layer filtering across tile boundaries in a reference layer picture in an access unit including both the enhancement layer tile and the base layer block is enabled, and code the collocated base layer block.

Abstract translation: 在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为对表示视频数据的不同层的瓦片边界是否对准的数据进行编码，以及允许层间预测沿着或跨越增强层块的平铺边界，代码 增强层块在视频数据的增强层块中，而不使用来自并置基础层块的层间预测，对于该层次块来说，在包括增强的访问单元的访问单元中的参考层图像中的跨层过滤或跨平铺边界的参考层过滤 层瓦片和基层块被启用，并对并置的基层块进行编码。

公开(公告)号：US20140254666A1

公开(公告)日：2014-09-11

申请号：US14196295

申请日：2014-03-04

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Xiang Li ,  Jianle Chen ,  Ye-Kui Wang ,  Wei Pu

IPC: H04N19/503

CPC classification number: H04N19/17 ,  H04N19/33 ,  H04N19/436 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: In one example, a device for coding video data includes a video coder configured to code data representative of whether a tile of an enhancement layer picture can be predicted using inter-layer prediction, and predict data of the tile using inter-layer prediction only when the data indicates that the tile can be predicted using inter-layer prediction.

Abstract translation: 在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为对表示是否可以使用层间预测来预测增强层图像的片段的数据进行编码;以及仅使用层间预测来预测瓦片的数据， 数据表示可以使用层间预测来预测瓦片。

公开(公告)号：US20140185665A1

公开(公告)日：2014-07-03

申请号：US14139357

申请日：2013-12-23

Applicant: QUALCOMM Incorporated

Inventor： Wei Pu ,  Jianle Chen ,  Krishnakanth Rapaka ,  Marta Karczewicz

IPC: H04N19/117 ,  H04N19/196 ,  H04N19/176 ,  H04N19/136

CPC classification number: H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

Abstract: This disclosure presents techniques for sample adaptive offset (SAO) filtering that focus on filtering the changed region of a picture or layer (e.g., the high frequency component of video blocks of a picture or layer). In general, the techniques of this disclosure may be referred to as High-Frequency-Pass SAO (HSAO) filtering. In one example, a method for coding video data comprises obtaining a decoded block of video data, separating the decoded block of video data into a low-frequency component and a high-frequency component, applying an SAO filter to the high-frequency component to generate a SAO filtered high-frequency component, and combining the SAO filtered high-frequency component and the low-frequency component to generate a filtered decoded block of video data.

Abstract translation: 本公开提供了用于对图像或层的改变区域（例如，图像或层的视频块的高频分量）进行滤波的样本自适应偏移（SAO）滤波的技术。 通常，本公开的技术可以被称为高频通过SAO（HSAO）滤波。 在一个示例中，用于编码视频数据的方法包括获得解码的视频数据块，将解码的视频数据块分成低频分量和高频分量，将SAO滤波器应用于高频分量 生成SAO滤波的高频分量，并组合SAO滤波的高频分量和低频分量以产生滤波的解码的视频数据块。

公开(公告)号：US20140044161A1

公开(公告)日：2014-02-13

申请号：US13954749

申请日：2013-07-30

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Vadim Seregin ,  Xiang Li ,  Krishnakanth Rapaka ,  Chengjie Tu ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/46 ,  H04N19/59 ,  H04N19/70 ,  H04N19/82

Abstract: Methods and systems for video image coding are provided. Sets of filters may be selected and applied to video information at least partially based on the type of inter layer prediction implemented in coding the video information. Different filters, or filter sets, may be used for inter layer intra prediction, difference domain intra prediction, and/or difference domain inter prediction. Filter selection information may be embedded in the video bit stream.

Abstract translation: 提供了视频图像编码的方法和系统。 可以至少部分地基于在编码视频信息中实现的层间预测的类型来选择并将其应用于视频信息。 不同的滤波器或滤波器组可以用于层间帧内预测，​​差分帧内预测和/或差域帧间预测。 滤波器选择信息可以嵌入在视频比特流中。