公开(公告)号：US20150139337A1

公开(公告)日：2015-05-21

申请号：US14607443

申请日：2015-01-28

Applicant: QUALCOMM Incorporated

Inventor： Peisong CHEN ,  Marta KARCZEWICZ ,  Yan YE

IPC: H04N19/70 ,  H04N19/44

CPC classification number: H04N19/70 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

Abstract: Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16×16 pixels. In one example, an apparatus includes a video encoder configured to encode a coded unit comprising a plurality of video blocks, wherein at least one of the plurality of video blocks comprises a size of more than 16×16 pixels and to generate syntax information for the coded unit that includes a maximum size value, wherein the maximum size value indicates a size of a largest one of the plurality of video blocks in the coded unit. The syntax information may also include a minimum size value. In this manner, the encoder may indicate to a decoder the proper syntax decoder to apply to the coded unit.

Abstract translation: 描述了使用比常规视频编码和解码标准规定的宏块大的宏块对数字视频数据进行编码和解码的技术。 例如，这些技术包括使用包括大于16×16像素的宏块对视频流进行编码和解码。 在一个示例中，一种装置包括：视频编码器，被配置为对包括多个视频块的编码单元进行编码，其中所述多个视频块中的至少一个包括大于16×16像素的大小，并且生成用于 编码单元，其包括最大尺寸值，其中所述最大尺寸值指示所述经编码单元中的所述多个视频块中最大的一个的尺寸。 语法信息还可以包括最小大小值。 以这种方式，编码器可以向解码器指示适用于编码单元的适当的语法解码器。

公开(公告)号：US20150103905A1

公开(公告)日：2015-04-16

申请号：US14513113

申请日：2014-10-13

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Ye-Kui WANG ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N19/503 ,  H04N19/51 ,  H04N19/61 ,  H04N19/44 ,  H04N19/91

CPC classification number: H04N19/503 ,  H04N19/30 ,  H04N19/44 ,  H04N19/51 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: Systems and methods for separately defining and indicating inter-layer prediction dependencies for a first layer with respect to each of a number of enhancement layers associated with the first layer are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory unit configured to store a first picture associated with a first layer and enhancement layer pictures associated with a plurality of enhancement layers. The video encoder further comprises a processor in communication with the memory unit. The processor is configured to provide a separate indication for each of the enhancement layers that indicates whether the first picture can be used for inter-layer prediction of the enhancement layer picture in a respective enhancement layer.

Abstract translation: 这里描述了用于相对于与第一层相关联的多个增强层中的每一个分别定义和指示第一层的层间预测依赖性的系统和方法。 在本公开中描述的主题的一个方面提供了一种视频编码器，其包括被配置为存储与第一层相关联的第一画面的存储器单元和与多个增强层相关联的增强层画面。 视频编码器还包括与存储器单元通信的处理器。 处理器被配置为为每个增强层提供指示第一图像是否可以用于相应增强层中的增强层图像的层间预测的单独指示。

公开(公告)号：US20150016502A1

公开(公告)日：2015-01-15

申请号：US14329804

申请日：2014-07-11

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Vadim SEREGIN ,  Jianle CHEN ,  Ye-Kui WANG ,  Marta KARCZEWICZ

IPC: H04N19/187 ,  H04N19/50

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，当前层具有当前画面。 处理器被配置为确定是否可以使用来自增强层的信息对当前层进行编码，确定增强层是否具有与当前图像对应的增强层图像，以及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：US20140294062A1

公开(公告)日：2014-10-02

申请号：US14227910

申请日：2014-03-27

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA ,  Ye-Kui WANG ,  Marta KARCZEWICZ

IPC: H04N19/105 ,  H04N19/30 ,  H04N19/503 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/30 ,  H04N19/33 ,  H04N19/46 ,  H04N19/503 ,  H04N19/593 ,  H04N19/70

Abstract: In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory unit configured to store reference layer pictures associated with a reference layer, an enhancement layer, or both. The apparatus further comprises a processor operationally coupled to the memory unit. In one embodiment, the processor is configured to restrict usage of at most one reference layer pictures that has been resampled as an inter-layer reference picture, and predict a current picture using inter-layer prediction and the inter-layer reference picture.

Abstract translation: 在一个实现中，提供了一种用于对视频信息进行编码或解码的装置。 该装置包括被配置为存储与参考层，增强层或两者相关联的参考层图像的存储单元。 该装置还包括可操作地耦合到存储器单元的处理器。 在一个实施例中，处理器被配置为限制已被重采样的至多一个参考层图像的使用作为层间参考图片，并且使用层间预测和层间参考图片来预测当前图像。

公开(公告)号：US20140219349A1

公开(公告)日：2014-08-07

申请号：US13760750

申请日：2013-02-06

Applicant: QUALCOMM INCORPORATED

Inventor： Wei-Jung CHIEN ,  Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/433 ,  H04N19/436

Abstract: In general, techniques are described for reducing the space required to store rate distortion values when selecting from multiple, different prediction modes. A video coding device comprising a processor may perform the techniques. The processor may determine first and second sets of intra-prediction modes for a current block of video data. The first and second sets of intra-prediction modes may include less intra-prediction modes, collectively, than a total number of intra-prediction modes. The processor may compute an approximate cost for each intra-prediction mode included in the first and second sets of intra-prediction modes. The processor may store the approximate cost for each intra-prediction mode identified in the first and second sets of intra-prediction modes to a memory. The processor may perform intra-prediction to encode the current block using a mode identified in at least one of the first or second set.

Abstract translation: 通常，描述了当从多个不同的预测模式进行选择时，减少存储速率失真值所需的空间的技术。 包括处理器的视频编码装置可以执行这些技术。 处理器可以确定当前视频数据块的第一组和第二组帧内预测模式。 第一组和第二组帧内预测模式可以包括比帧内预测模式的总数更少的帧内预测模式。 处理器可以计算包括在第一和第二组帧内预测模式中的每个帧内预测模式的近似成本。 处理器可以将在第一和第二组帧内预测模式中识别的每个帧内预测模式的近似成本存储到存储器。 处理器可以执行帧内预测，​​以使用在第一或第二组中的至少一个中识别的模式对当前块进行编码。

公开(公告)号：US20140185664A1

公开(公告)日：2014-07-03

申请号：US14137031

申请日：2013-12-20

Applicant: QUALCOMM Incorporated

Inventor： Geert VAN DER AUWERA ,  Marta KARCZEWICZ

IPC: H04N19/50 ,  H04N19/196 ,  H04N19/182 ,  H04N19/103 ,  H04N19/136

CPC classification number: H04N19/103 ,  H04N19/136 ,  H04N19/182 ,  H04N19/187 ,  H04N19/196 ,  H04N19/33 ,  H04N19/50

Abstract: An apparatus for coding video data according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores video data. The video data may include a base layer comprising samples with a lower bit depth and an enhancement layer comprising samples with a higher bit depth. The processor predicts the values of samples in the enhancement layer based on the values of samples in the base layer. The prediction performed by the processor includes applying a preliminary mapping to the base layer samples to obtain preliminary predictions, and then applying adaptive adjustments to the preliminary predictions to obtain refined predictions. Parameters used for the adaptive adjustments may depend on the values and distribution of base layer samples. The processor may encode or decode the video data.

Abstract translation: 根据某些方面的用于编码视频数据的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储视频数据。 视频数据可以包括包括具有较低位深度的样本的基本层和包括具有较高位深度的样本的增强层。 处理器基于基本层中的样本的值来预测增强层中的样本的值。 由处理器执行的预测包括将初步映射应用于基本层样本以获得初步预测，然后对初步预测应用适应性调整以获得精细预测。 用于自适应调整的参数可能取决于基层样本的值和分布。 处理器可以对视频数据进行编码或解码。

公开(公告)号：US20140140405A1

公开(公告)日：2014-05-22

申请号：US14078242

申请日：2013-11-12

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Marta KARCZEWICZ ,  Liwei GUO

IPC: H04N7/26

CPC classification number: H04N19/109 ,  H04N19/176 ,  H04N19/20 ,  H04N19/30 ,  H04N19/51 ,  H04N19/577

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 base layer and an enhancement layer. The video information comprises at least one enhancement layer (EL) block and at least one co-located base layer (BL) block. The co-located BL block has motion information associated therewith. The processor is configured to, in response to determining that the size of the EL block is smaller than a threshold size, either (1) use less than all of the motion information associated with the co-located BL block to code the EL block, or (2) refrain from using any motion information associated with the co-located BL block to code the EL block. 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基本层和增强层相关联的视频信息。 视频信息包括至少一个增强层（EL）块和至少一个共同定位的基本层（BL）块。 共同配置的BL块具有与其相关的运动信息。 响应于确定EL块的尺寸小于阈值尺寸，处理器被配置为（1）使用少于与同位置BL块相关联的所有运动信息来编码EL块， 或者（2）避免使用与同位置BL块相关联的任何运动信息来编码EL块。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140064359A1

公开(公告)日：2014-03-06

申请号：US14011406

申请日：2013-08-27

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jewon KANG ,  Jianle CHEN ,  Marta KARCZEWICZ ,  Vadim SEREGIN

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/187 ,  H04N19/30 ,  H04N19/70

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores video information associated with a reference layer and a corresponding enhancement layer. The processor receives a mode list associated with the enhancement layer, the mode list comprising three entities, each entity identifying a different mode for determining a value of a video unit located at a position within the enhancement layer. The processor changes the mode list when a mode associated with a co-located video unit in the reference layer is not stored as the first entity in the mode list. The co-located video unit is located at a position in the reference layer corresponding to the position of the video unit in the enhancement layer.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储与参考层和对应的增强层相关联的视频信息。 处理器接收与增强层相关联的模式列表，模式列表包括三个实体，每个实体标识用于确定位于增强层内的位置的视频单元的值的不同模式。 当与参考层中的同位置视频单元相关联的模式未被存储为模式列表中的第一实体时，处理器改变模式列表。 共同定位的视频单元位于与增强层中的视频单元的位置相对应的参考层中的位置。

公开(公告)号：US20140056361A1

公开(公告)日：2014-02-27

申请号：US13969406

申请日：2013-08-16

Applicant: QUALCOMM INCORPORATED

Inventor： Marta KARCZEWICZ ,  Liwei GUO ,  Xiang LI ,  Jianle CHEN

IPC: H04N7/30

CPC classification number: H04N19/00775 ,  H04N19/12 ,  H04N19/157 ,  H04N19/17 ,  H04N19/30 ,  H04N19/60

Abstract: An apparatus for coding video data according to certain aspects includes a memory and a processor in communication with the memory. The memory stores video block information. The video block information includes reference layer block information. The processor determines, based on a parameter of the video block information, a transform function that may be used to code the video block information. The processor may encode or decode the video block information. The transform function may be an alternative transform when the parameter is a predetermined value and a primary transform when the parameter is not the predetermined value. The alternative transform includes one of: a discrete-sine-transform (DST), a Type-I DST, a Type-III DST, a Type-IV DST, a Type-VII DST, a discrete-cosine-transform (DCT), a DCT of different types, and a Karhunen-Loeve transform (KLT).

Abstract translation: 根据某些方面的用于编码视频数据的装置包括与存储器通信的存储器和处理器。 存储器存储视频块信息。 视频块信息包括参考层块信息。 处理器基于视频块信息的参数确定可用于对视频块信息进行编码的变换函数。 处理器可以对视频块信息进行编码或解码。 当参数是预定值时，变换函数可以是替代变换，并且当参数不是预定值时，变换函数可以是一次变换。 替代变换包括以下之一：离散正弦变换（DST），I型DST，III型DST，Type-IV DST，Type-VII DST，离散余弦变换（DCT） ，不同类型的DCT，以及Karhunen-Loeve变换（KLT）。

公开(公告)号：US20140010290A1

公开(公告)日：2014-01-09

申请号：US13935041

申请日：2013-07-03

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/30 ,  H04N19/105 ,  H04N19/147 ,  H04N19/33 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/85 ,  H04N19/86

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding base layer of the video information. The processor determines an enhancement layer weight and a base layer weight, and determines a value of a current video unit based on the difference video layer, a value of a video unit in the enhancement layer weighted by the enhancement layer weight, and a value of a video unit in the base layer weighted by the base layer weight.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储与视频信息的增强层和对应的基本层之间的差异导出的像素信息的差异视频层相关联的差分视频信息。 处理器确定增强层权重和基本层权重，并且基于差异视频层确定当前视频单元的值，由增强层权重加权的增强层中的视频单元的值和 由基层重量加权的基层中的视频单元。