专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2013012930A1 COEFFICIENT SCANNING IN VIDEO CODING 审中-公开
标题翻译：视频编码中的系统扫描
公开(公告)号：WO2013012930A1
公开(公告)日：2013-01-24
申请号：PCT/US2012047220
申请日：2012-07-18
申请人： QUALCOMM INC , JOSHI RAJAN LAXMAN , SOLE ROJALS JOEL , KARCZEWICZ MARTA , ZHENG YUNFEI , WANG XIANGLIN
发明人： JOSHI RAJAN LAXMAN , SOLE ROJALS JOEL , KARCZEWICZ MARTA , ZHENG YUNFEI , WANG XIANGLIN
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/625 , H04N19/129 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/436 , H04N19/61
摘要： In an example, aspects of this disclosure relate to a method for decoding transform coefficients in a video decoding process that includes decoding a one-dimensional array of transform coefficients, and performing a scan on the one-dimensional array of transform coefficients according to a sub-block scan order and a coefficient scan order to produce a block of transform coefficients, where the sub-block scan order comprises an order in which each sub-block of a plurality of sub-blocks within the block is scanned, and where the coefficient scan order comprises an order in which the transform coefficients corresponding to each sub-block of the plurality of sub-blocks are scanned.
摘要翻译：在一个示例中，本公开的方面涉及用于解码视频解码处理中的变换系数的方法，该方法包括对变换系数的一维阵列进行解码，以及根据子像素对变换系数的一维阵列进行扫描块扫描顺序和系数扫描顺序以产生变换系数块，其中子块扫描顺序包括其中扫描块内的多个子块的每个子块的顺序，并且其中系数扫描顺序包括扫描与多个子块中的每个子块相对应的变换系数的顺序。

2. 发明申请

WO2013006297A9 APPLYING NON-SQUARE TRANSFORMS TO VIDEO DATA 审中-公开
标题翻译：对视频数据应用非平方转换
公开(公告)号：WO2013006297A9
公开(公告)日：2013-03-07
申请号：PCT/US2012044043
申请日：2012-06-25
申请人： QUALCOMM INC , GUO LIWEI , SOLE ROJALS JOEL , JOSHI RAJAN LAXMAN , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
发明人： GUO LIWEI , SOLE ROJALS JOEL , JOSHI RAJAN LAXMAN , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
IPC分类号： H04N7/26
CPC分类号： H04N19/96 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/46 , H04N19/70
摘要： In one example, a device for coding video data includes a video coder, such as a video encoder or a video decoder, that is configured to code information indicative of whether a transform unit of the video data is square or non-square, and code data of the transform unit based at least in part on whether the transform unit is square or non- square. In this manner, the video coder may utilize non-square transform units. The video coder may be configured to use non-square transform units for certain situations, such as only for chrominance or luminance components or only when a corresponding prediction unit is non-square. The video coder may further be configured to perform an entropy coding process that selects context for coding data of the transform unit based on whether the transform unit is square or non-square.
摘要翻译：在一个示例中，用于对视频数据进行译码的设备包括视频译码器，例如视频编码器或视频译码器，其经配置以译码指示视频数据的变换单元是正方形还是非正方形的信息，且代码变换单元的数据至少部分基于变换单元是正方形还是非正方形。以此方式，视频译码器可使用非正方形变换单元。视频译码器可经配置以针对某些情况使用非正方形变换单元，例如仅针对色度或亮度分量或仅当对应预测单元为非正方形时使用非正方形变换单元。视频译码器可进一步经配置以执行熵编码过程，所述熵译码过程基于变换单元是正方形还是非正方形而选择用于编码变换单元的数据的上下文。

3. 发明申请

WO2013006446A9 CONTEXT ADAPTIVE ENTROPY CODING FOR NON-SQUARE BLOCKS IN VIDEO CODING 审中-公开
标题翻译：视频编码中非方块的上下文自适应熵编码
公开(公告)号：WO2013006446A9
公开(公告)日：2013-02-28
申请号：PCT/US2012044967
申请日：2012-06-29
申请人： QUALCOMM INC , SOLE ROJALS JOEL , JOSHI RAJAN LAXMAN , KARCZEWICZ MARTA
发明人： SOLE ROJALS JOEL , JOSHI RAJAN LAXMAN , KARCZEWICZ MARTA
IPC分类号： H04N7/26
CPC分类号： H04N19/60 , H04N19/129 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/45 , H04N19/625 , H04N19/91 , H04N19/93 , H04W88/02
摘要： Disclosed are techniques for coding coefficients of a video block having a nonsquare shape defined by a width and a height, comprising coding one or more of x- and y-coordinates that indicate a position of a last non-zero coefficient within the block according to an associated scanning order, including coding each coordinate by determining one or more contexts used to code the coordinate based on one of the width and the height that corresponds to the coordinate, and coding the coordinate by performing a context adaptive entropy coding process based on the contexts. Also disclosed are techniques for coding information that identifies positions of non-zero coefficients within the block, including determining one or more contexts used to code the information based on one or more of the width and the height, and coding the information by performing a context adaptive entropy coding process based on the contexts.
摘要翻译：公开了用于对具有由宽度和高度限定的非正方形形状的视频块的系数进行编码的技术，该技术包括对x和y坐标中的一个或多个进行编码，所述一个或多个坐标指示块内最后一个非零系数的位置，相关联的扫描顺序，包括通过基于对应于所述坐标的宽度和高度中的一个确定用于对坐标进行编码的一个或多个上下文来编码每个坐标，以及通过执行上下文自适应熵编码处理对坐标进行编码，所述上下文自适应熵编码处理基于上下文。还公开了用于编码识别块内的非零系数的位置的信息的技术，包括基于宽度和高度中的一个或多个确定用于对信息进行编码的一个或多个上下文，并且通过执行上下文对信息进行编码基于上下文的自适应熵编码过程。

4. 发明申请

WO2012096943A2 32-POINT TRANSFORM FOR MEDIA DATA CODING 审中-公开
标题翻译：用于媒体数据编码的32点变换
公开(公告)号：WO2012096943A2
公开(公告)日：2012-07-19
申请号：PCT/US2012020755
申请日：2012-01-10
申请人： QUALCOMM INC , JOSHI RAJAN LAXMAN , REZNIK YURIY , SOLE ROJALS JOEL , KARCZEWICZ MARTA
发明人： JOSHI RAJAN LAXMAN , REZNIK YURIY , SOLE ROJALS JOEL , KARCZEWICZ MARTA
IPC分类号： G06F17/14
CPC分类号： G06F17/147 , H04N19/625
摘要： In general, techniques are described for implementing a 32-point discrete cosine transform (DCT) that is capable of applying multiple DCTs of different sizes. For example, an apparatus comprising a 32-point discrete cosine transform of type II (DCT-II) unit may implement the techniques of this disclosure. The 32-point DCT-II unit performs these DCTs-II of different sizes to transform data from a spatial to a frequency domain. The 32-point DCT-II unit includes an 16-point DCT-II unit that performs one of the DCTs-II of size 16 and at least one 8-point DCT-II unit that performs one of the DCTs-II of size 8. The 16-point DCT-II unit includes another 8-point DCT-II unit. The 16-point DCT-II unit also comprises at least one 4-point DCTs-II unit. Two or more of these DCTs-II units may concurrently perform DCTs-II of different sizes to various portions of the content data.
摘要翻译：通常，描述了用于实现能够应用不同尺寸的多个DCT的32点离散余弦变换（DCT）的技术。例如，包括II型（DCT-II）单元的32点离散余弦变换的装置可以实现本公开的技术。 32点DCT-II单元执行不同尺寸的DCT-II，以将数据从空间转换到频域。 32点DCT-II单元包括执行尺寸为16的DCT-II之一的16点DCT-II单元和执行尺寸为8的DCT-II之一的至少一个8点DCT-II单元 16点DCT-II单元包括另外8点DCT-II单元。 16点DCT-II单元还包括至少一个4点DCT-II单元。这些DCT-II单元中的两个或更多个可以对内容数据的各个部分同时执行不同大小的DCT-II。

5. 发明申请

WO2012122284A1 CODING OF TRANSFORM COEFFICIENTS FOR VIDEO CODING 审中-公开
标题翻译：视频编码转换系数的编码
公开(公告)号：WO2012122284A1
公开(公告)日：2012-09-13
申请号：PCT/US2012028093
申请日：2012-03-07
申请人： QUALCOMM INC , SOLE ROJALS JOEL , JOSHI RAJAN L , KARCZEWICZ MARTA
发明人： SOLE ROJALS JOEL , JOSHI RAJAN L , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50
CPC分类号： H04N19/129 , H04N19/00109 , H04N19/13 , H04N19/136 , H04N19/167 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/436 , H04N19/463 , H04N19/60 , H04N19/61 , H04N19/619 , H04N19/70 , H04N19/91
摘要： This disclosure describes techniques for coding transform coefficients associated with a block of residual video data in a video coding process. Aspects of this disclosure include the selection of a scan order for both significance map coding and level coding, as well as the selection of contexts for entropy coding consistent with the selected scan order. This disclosure proposes a harmonization of the scan order to code both the significance map of the transform coefficients as well as to code the levels of the transform coefficient. It is proposed that the scan order for the significance map should be in the inverse direction (i.e., from the higher frequencies to the lower frequencies). This disclosure also proposes that transform coefficients be scanned in subsets as opposed to fixed subblocks. In particular, transform coefficients are scanned in a subset consisting of a number of consecutive coefficients according to the scan order.
摘要翻译：本发明描述用于译码视频译码过程中与残余视频数据块相关联的变换系数的技术。本公开的各方面包括选择用于重要图编码和等级编码两者的扫描顺序，以及用于与所选择的扫描顺序一致的用于熵编码的上下文的选择。本公开提出了协调扫描顺序以编码变换系数的重要图以及编码变换系数的电平。建议重要图的扫描顺序应该是反方向的（即从较高频率到较低频率）。本公开内容还提出，与固定子块相对，在子集中扫描变换系数。具体而言，根据扫描顺序在由多个连续系数组成的子集中扫描变换系数。

6. 发明申请

WO2012045037A3 ZERO-OUT OF HIGH FREQUENCY COEFFICIENTS AND ENTROPY CODING RETAINED COEFFICIENTS USING A JOINT CONTEXT MODEL 审中-公开
标题翻译：高频系数零OUT和熵编码未分配利润系数使用联合上下文模型
公开(公告)号：WO2012045037A3
公开(公告)日：2012-05-18
申请号：PCT/US2011054418
申请日：2011-09-30
申请人： QUALCOMM INC , SOLE ROJALS JOEL , JOSHI RAJAN L , KARCZEWICZ MARTA
发明人： SOLE ROJALS JOEL , JOSHI RAJAN L , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/13 , H04N19/132 , H04N19/14 , H04N19/146 , H04N19/149 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/625 , H04N19/64 , H04N19/91
摘要： This disclosure describes techniques for performing entropy encoding and decoding of video coefficients using a joint context model shared between transform units having different sizes. For example, the joint context model may be shared between transform units having a first size of 32x32 and transform units having a second size of 16x16. Performing entropy coding using a joint context model shared between transform units having different sizes may reduce an amount of memory necessary to store contexts and probabilities, and reduce computational costs of maintaining context models. In one example, the joint context model may be shared between transform units having the first size with coefficients zeroed out to generate a retained coefficient block having the second size and transform units having the second size. In another example, the joint context model may be shared between transform units having the first size and transform units having the second size.
摘要翻译：本发明描述用于使用在具有不同尺寸的变换单元之间共享的联合上下文模型来执行视频系数的熵编码和解码的技术。例如，联合上下文模型可具有16×16的第二大小的变换具有32×32的第一尺寸单元和变换单元之间共享。执行熵使用联合上下文模型之间共享变换具有不同尺寸的可降低的必要存储上下文和概率的存储器的量，并减少维护的上下文模型的计算成本单位进行编码。在一个示例中，联合上下文模型可具有第一尺寸具有系数置零，以产生具有所述第二尺寸的保留系数块和变换具有第二大小为单位变换单元之间共享。在另一个示例中，联合上下文模型可以在具有第一大小的变换单元和具有第二大小的变换单元之间共享。

7. 发明公开

KR20180054782A 비디오 코딩에서의 성분들의 범위 조정의 고정 소수점 구현 审中-公开
公开(公告)号：KR20180054782A
公开(公告)日：2018-05-24
申请号：KR20187011007
申请日：2016-09-20
申请人： QUALCOMM INC
发明人： RAMASUBRAMONIAN ADARSH KRISHNAN , RUSANOVSKYY DMYTRO , SOLE ROJALS JOEL , LEE SUNGWON , BUGDAYCI SANSLI DONE , KARCZEWICZ MARTA
IPC分类号： H04N19/196 , H04N19/117 , H04N19/132 , H04N19/154 , H04N19/184 , H04N19/187 , H04N19/36 , H04N19/44 , H04N19/46 , H04N19/80 , H04N19/85
CPC分类号： H04N19/44 , H04N19/117 , H04N19/132 , H04N19/154 , H04N19/184 , H04N19/187 , H04N19/36 , H04N19/46 , H04N19/80 , H04N19/85
摘要： 고정소수점구현을이용하여높은동적범위또는넓은컬러영역비디오데이터를프로세싱하는것이개시된다. 비디오데이터를프로세싱하는방법은역 동적범위조정프로세스를수행하기위한파라미터들을결정하는방법을규정하는정보를포함하는하나이상의보충강화정보 (SEI) 메시지들을수신하는단계, 디코딩된비디오데이터를수신하는단계, 및하나이상의 SEI 메시지들에서의정보에따라고정소수점컴퓨팅을이용하여디코딩된비디오데이터에대한역 동적범위조정프로세스를수행하는단계를포함한다.

8. 发明公开

KR20180054815A 코어 비디오 표준을 사용하는 고 동적 범위 (HDR) 비디오 코딩을 위한 비디오 디코더 적합성 审中-公开
公开(公告)号：KR20180054815A
公开(公告)日：2018-05-24
申请号：KR20187011332
申请日：2016-09-22
申请人： QUALCOMM INC
发明人： SOLE ROJALS JOEL , RAMASUBRAMONIAN ADARSH KRISHNAN , RUSANOVSKYY DMYTRO , LEE SUNGWON , WANG YE KUI
IPC分类号： H04N19/98 , G06F3/14 , G09G5/04 , H04N19/124 , H04N19/18 , H04N19/186 , H04N19/30 , H04N19/44 , H04N19/46 , H04N19/70 , H04N19/85
CPC分类号： H04N19/124 , G06F3/1407 , G09G3/003 , G09G5/04 , G09G5/06 , G09G2320/0276 , G09G2340/06 , G09G2370/00 , H04N19/18 , H04N19/186 , H04N19/30 , H04N19/44 , H04N19/46 , H04N19/70 , H04N19/85 , H04N19/98
摘要： 하나의예에서, 디코딩된비디오데이터를프로세싱하는디바이스는디지털로직회로를포함하는하나이상의하드웨어-기반프로세싱유닛들에의해구현되는비디오디코더, 및디지털로직회로를포함하는하나이상의하드웨어-기반프로세싱유닛들에의해구현되는포스트프로세싱유닛을포함한다. 비디오디코더는비디오코딩표준에따라비디오비트스트림의비디오데이터를디코딩하고, 비디오비트스트림의 SEI 메시지로부터 HDR 포스트프로세싱데이터를추출하며, 포스트프로세싱유닛으로그 디코딩된비디오데이터및 HDR 포스트프로세싱데이터를제공하도록구성된다. 포스트프로세싱유닛은비디오코딩표준에따라 HDR 포스트프로세싱데이터를사용하여디코딩된비디오데이터를프로세싱하도록구성된다. 디바이스는추가적으로프로세싱된비디오데이터를참조프로세싱된비디오데이터와비교함으로써비디오디코더가비디오코딩표준에따르는지여부를결정할수도있다.

9. 发明公开

KR20180041774A 비디오 코딩에서 예측 잔차 블록들의 재배치 审中-公开
公开(公告)号：KR20180041774A
公开(公告)日：2018-04-24
申请号：KR20187010756
申请日：2014-04-23
申请人： QUALCOMM INC
发明人： JOSHI RAJAN LAXMAN , KARCZEWICZ MARTA , SOLE ROJALS JOEL , PANG CHAO
IPC分类号： H04N19/159 , H04N19/129 , H04N19/176 , H04N19/46 , H04N19/88
CPC分类号： H04N19/88 , H04N19/129 , H04N19/159 , H04N19/176 , H04N19/46
摘要： 변환이스킵되거나또는바이패스되는, 손실또는무손실코딩모드에서예측잔차블록의잔차데이터를코딩하는기법들이설명된다. 본개시물의기법들은잔차블록의잔차데이터를코딩하기전에잔차블록의잔차데이터를재배치할지, 예컨대, 회전시키거나또는플리핑할지여부를결정하는것을포함한다. 손실및 무손실코딩모드들양쪽에대해, 비디오코딩디바이스는잔차블록의예측모드및 잔차블록의사이즈에기초하여, 잔차블록의잔차데이터를재배치할지여부를결정한다. 일부예들에서, 본기법들은인터-예측모드및 인트라블록복사예측모드에서모든잔차블록들에대한재배치를디스에이블하고, 그리고, 잔차블록들이임계사이즈이하인블록사이즈들을가질때 인트라-예측모드에서잔차블록들을재배치하도록결정한다.

10. 发明公开

KR20180056726A 높은 동적 범위 및 넓은 색 영역 비디오 코딩을 위한 보충적 향상 정보 (SEI) 메시지들 审中-公开
公开(公告)号：KR20180056726A
公开(公告)日：2018-05-29
申请号：KR20187011144
申请日：2016-09-20
申请人： QUALCOMM INC
发明人： RAMASUBRAMONIAN ADARSH KRISHNAN , RUSANOVSKYY DMYTRO , SOLE ROJALS JOEL , LEE SUNGWON , BUGDAYCI SANSLI DONE , KARCZEWICZ MARTA
IPC分类号： H04N19/463 , H04N19/184 , H04N19/36 , H04N19/66 , H04N19/70 , H04N19/80 , H04N19/85
CPC分类号： H04N19/463 , H04N19/117 , H04N19/124 , H04N19/154 , H04N19/174 , H04N19/184 , H04N19/186 , H04N19/36 , H04N19/44 , H04N19/46 , H04N19/60 , H04N19/66 , H04N19/70 , H04N19/80 , H04N19/85
摘要： 본개시물은 HDR/WCG 컬러표현에의해표현되는비디오데이터를프로세싱하는것을포함하는비디오데이터를프로세싱하는것에관련된다. 본개시물의하나이상의양태들에따라서, 하나이상의보충적향상정보 (SEI) 메시지들은비디오데이터의원래의또는네이티브컬러표현을복원하기위하여비디오디코더또는비디오포스트프로세싱디바이스가본 개시물의동적범위조정 (dynamic range adjustment, DRA) 기법들을역전시키는것을허용하는신택스엘리먼트들및 또는다른정보를시그널링하는데사용될수도있다. 동적범위조정 (DRA) 파라미터들은 HDR/WCG 컬러표현을더 잘사용하기위하여본 개시물의하나이상의양태들에따라서비디오데이터에적용될수도있고, 컬러성분값들의파티션들을위한로컬스케일및 오프셋값들뿐만아니라, 글로벌오프셋값들의사용을포함할수도있다.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式