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51. 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。

52. 发明申请

WO2011035211A3 MULTI-TRACK VIDEO CODING METHODS AND APPARATUS USING AN EXTRACTOR THAT REFERENCES TWO OR MORE NON- CONSECUTIVE NAL UNITS 审中-公开
标题翻译：多路视频编码方法和设备使用引用两个或更多非相关单位的提取器
公开(公告)号：WO2011035211A3
公开(公告)日：2011-06-23
申请号：PCT/US2010049402
申请日：2010-09-17
申请人： QUALCOMM INC , CHEN YING , KARCZEWICZ MARTA
发明人： CHEN YING , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/0043 , H04N19/31 , H04N19/597 , H04N19/61 , H04N19/70 , H04N21/234327 , H04N21/8451 , H04N21/85406
摘要： A video coding apparatus may be configured to utilize media extractors in a media extractor track that reference two or more non-consecutive network access layer (NAL) units of a separate track. An example apparatus includes a multiplexer to construct a first track including a video sample comprising NAL units, based on encoded video data, wherein the video sample is included in an access unit, construct a second track including an extractor that identifies at least first one of the NAL units in the video sample of the first track, and wherein the extractor identifies a second NAL unit of the access unit, wherein the first identified NAL unit and the second identified NAL unit are non-consecutive, and include the first track and the second track in a video file conforming at least in part to ISO base media file format. The identified NAL units may be in separate tracks.
摘要翻译：视频编码装置可以被配置为使用媒体提取器轨道中的媒体提取器来引用单独轨道的两个或多个非连续网络接入层（NAL）单元。示例性装置包括多路复用器，用于基于编码的视频数据构建包括包含NAL个单元的视频样本的第一轨道，其中所述视频样本被包括在访问单元中，构建包括提取器的第二轨道，所述提取器至少识别所述第一轨道的视频样本中的NAL单元，并且其中所述提取器识别所述访问单元的第二NAL单元，其中所述第一识别的NAL单元和所述第二识别的NAL单元是不连续的，并且包括所述第一轨道和视频文件中的第二轨道至少部分符合ISO基础媒体文件格式。所识别的NAL单元可以在单独的轨道中。

53. 发明申请

WO2009126915A8 RATE-DISTORTION DEFINED INTERPOLATION FOR VIDEO CODING BASED ON FIXED FILTER OR ADAPTIVE FILTER 审中-公开
标题翻译：基于固定滤波器或自适应滤波器的视频编码速率定义插值
公开(公告)号：WO2009126915A8
公开(公告)日：2010-12-23
申请号：PCT/US2009040254
申请日：2009-04-10
申请人： QUALCOMM INC , YE YAN , KARCZEWICZ MARTA
发明人： YE YAN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/523 , H04N19/117 , H04N19/122 , H04N19/147 , H04N19/182 , H04N19/192 , H04N19/46 , H04N19/635 , H04N19/82
摘要： This disclosure describes filtering techniques applied by an encoder and a decoder during the prediction stage of a video encoding and/or decoding process. The filtering techniques may enhance the accuracy of predictive data used during fractional interpolation, and may improve predictive data of integer blocks of pixels. There are several aspects to this disclosure, including a useful twelve-pixel filter support that may be used for interpolation, techniques that use coefficient symmetry and pixel symmetry to reduce the amount of data needed to be sent between an encoder and a decoder to configure the filter support for interpolation, and techniques for filtering data at integer pixel locations in a manner that is similar to sub-pixel interpolation. Other aspects of this disclosure concern techniques for encoding information in the bitstream to convey the type of filter used, and possibly the filter coefficients used. Predictive coding of filter coefficients is also described.
摘要翻译：本公开描述了在视频编码和/或解码过程的预测阶段期间由编码器和解码器应用的滤波技术。滤波技术可以增强在分数插值期间使用的预测数据的精度，并且可以改善整数像素块的预测数据。本公开的方面有几个方面，包括可用于插值的有用的十二像素滤波器支持，使用系数对称性和像素对称性的技术来减少在编码器和解码器之间发送的数据量以配置用于内插的滤波器支持，以及以类似于子像素插值的方式在整数像素位置处对数据进行滤波的技术。本公开的其它方面涉及用于对位流中的信息进行编码以传送所使用的滤波器的类型以及可能使用的滤波器系数的技术。还描述了滤波器系数的预测编码。

54. 发明申请

WO2010083438A3 FILTER PREDICTION BASED ON ACTIVITY METRICS IN VIDEO CODING 审中-公开
标题翻译：基于视频编码中活动指标的滤波器预测
公开(公告)号：WO2010083438A3
公开(公告)日：2010-11-11
申请号：PCT/US2010021239
申请日：2010-01-15
申请人： QUALCOMN INC , CHEN PEISONG , KARCZEWICZ MARTA , MOTTA GIOVANNI , YE YAN
发明人： CHEN PEISONG , KARCZEWICZ MARTA , MOTTA GIOVANNI , YE YAN
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/61 , H04N19/80 , H04N19/82
摘要： This disclosure describes techniques associated with filtering of video data in a video encoding and/or decoding process. In accordance with this disclosure, filtering is applied at an encoder, and filter information is encoded in the bitstream to identify the filtering that was applied at the encoder. Different types of filtering may be applied based on an activity metric determined for the video data. Moreover, in accordance with this disclosure, the manner in which the filter information is encoded into the bitstream may be dependent on the activity metric. In particular, for a first range of the activity metric, one or more filters are encoded directly, and for a second range of the activity metric, one or more filters are predictively encoded.
摘要翻译：本公开描述了与视频编码和/或解码过程中的视频数据的过滤相关联的技术。根据本公开，在编码器处应用滤波，并且在比特流中编码滤波器信息以识别在编码器处应用的滤波。基于针对视频数据确定的活动度量，可以应用不同类型的过滤。此外，根据本公开，滤波器信息被编码到比特流中的方式可以取决于活动度量。具体地，对于活动度量的第一范围，直接编码一个或多个过滤器，并且对于活动度量的第二范围，预测编码一个或多个过滤器。

55. 发明申请

WO2008048855A3 EFFICIENT SIGNIFICANT COEFFICIENTS CODING IN SCALABLE VIDEO CODECS 审中-公开
标题翻译：高可靠性视频编解码器中有效的重要系数编码
公开(公告)号：WO2008048855A3
公开(公告)日：2009-12-17
申请号：PCT/US2007081119
申请日：2007-10-11
申请人： QUALCOMM INC , KARCZEWICZ MARTA
发明人： KARCZEWICZ MARTA
IPC分类号： H04N7/26
CPC分类号： H04N19/33 , H04N19/34 , H04N19/40
摘要： Techniques for efficient significant coefficients coding in scalable video codecs are described. In one configuration, a device including a processing circuit having a set of instruction operative to generate initialization tables for a current frame or slice is provided. The initialization tables have statistics of a significant coefficient pass for a previous encoded frame or slice using scalable video coding. The device also includes a transmitter to transmit the initialization tables with the current frame or slice to a decoder. The decoder can decode a frame or slice with the transmitted initialization tables. The decoder may also use resident default initialization tables.
摘要翻译：描述了用于可伸缩视频编解码器中有效的有效系数编码的技术。在一种配置中，提供一种包括具有用于生成当前帧或片的初始化表的操作指令集的处理电路的设备。初始化表具有使用可缩放视频编码对先前编码的帧或片的有效系数通过的统计。该设备还包括发送器，用于将具有当前帧或切片的初始化表传送到解码器。解码器可以利用发送的初始化表来对帧或片进行解码。解码器也可以使用驻留的默认初始化表。

56. 发明申请

WO2009054840A3 REFINEMENT COEFFICIENT CODING BASED ON HISTORY OF CORRESPONDING TRANSFORM COEFFICIENT VALUES 审中-公开
标题翻译：基于相关变换系数值的历史的修正系数编码
公开(公告)号：WO2009054840A3
公开(公告)日：2009-11-12
申请号：PCT/US2007081129
申请日：2007-10-11
申请人： QUALCOMM INC , KARCZEWICZ MARTA
发明人： KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/34 , H04N19/103 , H04N19/13 , H04N19/132 , H04N19/184 , H04N19/187 , H04N19/31 , H04N19/61
摘要： This disclosure describes techniques for coding of refinement coefficients of an enhancement layer in a scalable video coding (SVC) scheme. According to this disclosure, a method may comprise evaluating a history of transform coefficient values associated with one or more previous layers of the SVC scheme, and estimating one or more refinement coefficient values associated with a current layer of the SVC scheme based on the history. On the encoding side, the coding process may include excluding information for one or more refinement coefficient values from the bitstream and signaling to the decoder that such information is excluded from the bitstream. On the decoding side, coding process include parsing the bitstream to identify information that signals to the decoder that information is excluded from the bitstream, and generating such information based on the history associated with one or more previous layers of the SVC scheme.
摘要翻译：本公开描述了用于在可缩放视频编码（SVC）方案中对增强层的细化系数进行编码的技术。根据本公开，一种方法可以包括评估与SVC方案的一个或多个先前层相关联的变换系数值的历史，以及基于历史来估计与SVC方案的当前层相关联的一个或多个细化系数值。在编码方面，编码处理可以包括从比特流排除一个或多个细化系数值的信息，并且向解码器发送信号从比特流中排除。在解码侧，编码处理包括解析比特流，以识别向比特流排除信息的信息，并且基于与SVC方案的一个或多个先前层相关联的历史生成这样的信息。

57. 发明申请

WO2008086316A3 VARIABLE LENGTH CODING TECHNIQUES FOR CODED BLOCK PATTERNS 审中-公开
标题翻译：用于编码块模式的可变长度编码技术
公开(公告)号：WO2008086316A3
公开(公告)日：2009-08-20
申请号：PCT/US2008050443
申请日：2008-01-07
申请人： QUALCOMM INC , KARCZEWICZ MARTA , CHUNG HYUKJUNE , SAGETONG PHOOM
发明人： KARCZEWICZ MARTA , CHUNG HYUKJUNE , SAGETONG PHOOM
IPC分类号： H04N19/13 , H04N19/60
CPC分类号： H04N19/463 , H04N19/13 , H04N19/176 , H04N19/196 , H04N19/30 , H04N19/61
摘要： Variable length coding (VLC) techniques are described for coded block patterns (CBPs) used in block-based video coding. In VLC of CBPs, patterns of transform coefficients that are more likely to occur are coded with shorter codes, while patterns of coefficients that are less likely to occur are coded with longer codes. According to the techniques of this disclosure, several different VLC tables are stored in the coding devices. During the encoding and decoding processes, one of the VLC tables is selected and used to perform the coding of CBPs for a given video block. The table may be selected based on a number of neighboring video blocks to the current video block that include non-zero transform coefficients. The techniques may be particularly useful in the coding of video blocks of enhancement layers in scalable video coding (SVC).
摘要翻译：对基于块的视频编码中使用的编码块模式（CBP）描述了可变长度编码（VLC）技术。在CBP的VLC中，更可能发生的变换系数的模式用较短的代码进行编码，而不太可能发生的系数模式用较长的代码进行编码。根据本公开的技术，几个不同的VLC表被存储在编码装置中。在编码和解码过程中，选择VLC表之一并用于对给定的视频块执行CBP的编码。可以基于包括非零变换系数的当前视频块的相邻视频块的数量来选择该表。这些技术在可扩展视频编码（SVC）中的增强层的视频块的编码中可能特别有用。

58. 发明申请

WO2009003065A3 SUB-BAND SCANNING TECHNIQUES FOR ENTROPY CODING OF SUB-BANDS 审中-公开
标题翻译：子带进行编码的子带扫描技术
公开(公告)号：WO2009003065A3
公开(公告)日：2009-02-26
申请号：PCT/US2008068241
申请日：2008-06-25
申请人： QUALCOMM INC , CHUNG HYUKJUNE , KARCZEWICZ MARTA
发明人： CHUNG HYUKJUNE , KARCZEWICZ MARTA
IPC分类号： H04N7/26
CPC分类号： H04N19/00 , H04N19/122 , H04N19/129 , H04N19/1883 , H04N19/63 , H04N19/635
摘要： This disclosure describes techniques useful in the encoding and/or decoding of video data of a video sequence. In general, this disclosure sets forth scanning techniques useful in the context of sub-band coding, which may improve the level of compression that can be achieved by entropy coding following sub-band coding. In one example, a method of encoding video data of a video sequence comprises sub-band encoding the video data to generate a plurality of sub-bands, scanning each of the sub-bands from two-dimensional blocks into one-dimensional vectors based on scan orders defined for each of the sub-bands, and entropy encoding each of the scanned sub-bands.
摘要翻译：本公开描述了在视频序列的视频数据的编码和/或解码中有用的技术。通常，本公开提出了在子带编码的上下文中有用的扫描技术，其可以提高可以通过在子带编码之后的熵编码来实现的压缩水平。在一个示例中，对视频序列的视频数据进行编码的方法包括对视频数据进行子带编码以产生多个子带，从基于二维块的每个子带将二维块扫描为一维向量为每个子带定义的扫描顺序，以及对每个扫描的子带进行熵编码。

59. 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。

60. 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。

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