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。

公开(公告)号：US20140010280A1

公开(公告)日：2014-01-09

申请号：US13935402

申请日：2013-07-03

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/32

CPC classification number: H04N19/103 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/187 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/593 ,  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 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 a DC prediction value for a video unit associated with the difference video layer while refraining from using pixel information from a neighboring area of the video unit, wherein the DC prediction value is equal to zero or is offset by an offset value. The DC prediction value is a prediction value used in intra prediction based at least on an average of neighboring video units of the video unit. The processor further determines a value of the video unit based at least in part on the DC prediction value.

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。 处理器在禁止使用来自视频单元的相邻区域的像素信息的同时，确定与差分视频层相关联的视频单元的DC预测值，其中DC预测值等于零或被偏移值偏移。 DC预测值是至少基于视频单元的相邻视频单元的平均值在帧内预测中使用的预测值。 处理器还至少部分地基于DC预测值来确定视频单元的值。