专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

121. 发明申请

WO2012122278A1 CODING OF TRANSFORM COEFFICIENTS FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的变换系数编码
公开(公告)号：WO2012122278A1
公开(公告)日：2012-09-13
申请号：PCT/US2012/028087
申请日：2012-03-07
申请人： QUALCOMM Incorporated , SOLE ROJALS, Joel , JOSHI, Rajan L. , KARCZEWICZ, Marta
发明人： SOLE ROJALS, Joel , JOSHI, Rajan L. , KARCZEWICZ, Marta
IPC分类号： 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：本公开描述了用于编码与视频编码过程中的残留视频数据块相关联的变换系数的技术。本公开的方面包括选择重要性地图编码和级别编码的扫描顺序，以及与所选择的扫描顺序一致的用于熵编码的上下文的选择。本公开提出了对扫描顺序进行协调以对变换系数的有效图进行编码以及对变换系数的等级进行编码。提出，显着图的扫描顺序应该在相反方向（即，从较高频率到较低频率）。本公开还提出，在子集中扫描变换系数，而不是固定子块。特别地，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。

122. 发明申请

WO2012122169A1 BUFFER MANAGEMENT IN VIDEO CODECS 审中-公开
标题翻译：视频编解码器中的缓冲区管理
公开(公告)号：WO2012122169A1
公开(公告)日：2012-09-13
申请号：PCT/US2012/027884
申请日：2012-03-06
申请人： QUALCOMM INCORPORATED , CHEN, Ying , KARCZEWICZ, Marta
发明人： CHEN, Ying , KARCZEWICZ, Marta
IPC分类号： H04N21/44 , H04N21/845 , H04N7/26
CPC分类号： H04N21/44016 , H04N19/426 , H04N19/573 , H04N19/70 , H04N21/8455
摘要： In one example, a video decoder is configured to determine, from data associated with an open decoding refresh (ODR) picture of video data, an identifier for a previous picture of the video data, determine whether the previous picture is currently stored in a reference picture memory, and decode only data for pictures of the video data having display order values that are greater than a display order value of the ODR picture, when the previous picture is not stored in the reference picture memory. In another example, a video encoder is configured to encode an open decoding refresh (ODR) picture, determine a previously coded picture having a display order value less than a display order value of the ODR picture and having a temporal identifier value equal to zero, and signal syntax data for the ODR picture representative of an identifier of the determined previously coded picture.
摘要翻译：在一个示例中，视频解码器被配置为从与视频数据的开放解码刷新（ODR）图像相关联的数据确定视频数据的先前图像的标识符，确定先前图像是否当前存储在参考中图像存储器，并且仅当前一图像未存储在参考图像存储器中时，仅解码具有大于ODR图像的显示顺序值的显示顺序值的视频数据的图像的数据。在另一示例中，视频编码器被配置为对开放解码刷新（ODR）图像进行编码，确定具有小于ODR图像的显示顺序值的显示顺序值并且具有等于零的时间标识符值的先前编码图像，以及用于表示所确定的先前编码图像的标识符的ODR图像的信号语法数据。

123. 发明申请

WO2012116090A1 MULTI-METRIC FILTERING 审中-公开
标题翻译：多重滤波
公开(公告)号：WO2012116090A1
公开(公告)日：2012-08-30
申请号：PCT/US2012/026160
申请日：2012-02-22
申请人： QUALCOMM Incorporated , CHONG, In Suk , KARCZEWICZ, Marta
发明人： CHONG, In Suk , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/117 , H04N7/26255 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/42 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/82 , H04N19/85 , H04N19/96
摘要： A filter unit determines a mapping of range combinations to filters. Each range combination includes a range for a first metric and a range for a second metric. The filter unit determines a unique range combination identification (ID) for each range combination, with each unique range combination ID corresponding to a sequential value. The filter unit assigns a unique group ID to each group of range combinations. A group of range combinations includes range combinations mapped to the same filter, and the unique group IDs correspond to a set of sequential values. The filter unit signals or reconstructs coefficients for the filters in an order based on the sequential values of the group IDs.
摘要翻译：滤波器单元确定范围组合到滤波器的映射。每个范围组合包括第一度量的范围和第二度量的范围。滤波器单元确定每个范围组合的唯一范围组合标识（ID），其中每个唯一范围组合ID对应于顺序值。过滤器单元为每组范围组合分配唯一的组ID。一组范围组合包括映射到相同过滤器的范围组合，唯一组ID对应于一组顺序值。滤波器单元基于组ID的顺序值以顺序对滤波器的系数进行信号或重建。

124. 发明申请

WO2012096730A1 IDENTIFICATION OF SAMPLES IN A TRANSITION ZONE 审中-公开
标题翻译：标示过渡区样本
公开(公告)号：WO2012096730A1
公开(公告)日：2012-07-19
申请号：PCT/US2011/063795
申请日：2011-12-07
申请人： QUALCOMM Incorporated , GUO, Liwei , KARCZEWICZ, Marta , CHEN, Peisong
发明人： GUO, Liwei , KARCZEWICZ, Marta , CHEN, Peisong
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/80
摘要： During a video encoding or decoding process, a predicted prediction block is generated for a CU. The CU may have two or more prediction units (PUs). A computing device selects a neighbor region size. After the computing device selects the neighbor region size, samples in a transition zone of the prediction block are identified. Samples associated with a first PU are in the transition zone if neighbor regions that contain the samples also contain samples associated with a second PU. Samples associated with the second PU may be in the transition zone if neighbor regions that contain the samples also contain samples associated with the first PU. The neighbor regions have the selected neighbor region size. A smoothing operation is then performed on the samples in the transition zone.
摘要翻译：在视频编码或解码过程中，为CU生成预测预测块。 CU可以具有两个或更多个预测单元（PU）。计算设备选择相邻区域大小。在计算设备选择相邻区域大小之后，识别预测块的过渡区域中的采样。与第一PU相关联的样本处于过渡区域，如果包含样本的相邻区域也包含与第二PU相关联的样本。与第二PU相关联的样本可以在过渡区域中，如果包含样本的相邻区域也包含与第一PU相关联的样本。相邻区域具有所选择的相邻区域大小。然后对过渡区域中的样本进行平滑处理。

125. 发明申请

WO2012096729A1 ADAPTIVELY PERFORMING SMOOTHING OPERATIONS 审中-公开
标题翻译：轻松执行平滑操作
公开(公告)号：WO2012096729A1
公开(公告)日：2012-07-19
申请号：PCT/US2011/063793
申请日：2011-12-07
申请人： QUALCOMM INCORPORATED , GUO, Liwei , CHEN, Peisong , KARCZEWICZ, Marta
发明人： GUO, Liwei , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/80
摘要： During a video coding process, a prediction block is generated for a CU. The CU has two or more prediction units. A computing device determines, based on sizes of one or more of the prediction units, whether to perform a smoothing operation on samples in a transition zone of the prediction block. The transition zone is located at a boundary between samples of the prediction block associated with different prediction units. If the computing device makes the determination to perform the smoothing operation, the smoothing operation is performed to smooth samples of the prediction block in the transition zone.
摘要翻译：在视频编码处理期间，为CU生成预测块。 CU具有两个或更多个预测单元。计算装置基于一个或多个预测单元的大小来确定是否对预测块的过渡区域中的样本执行平滑处理。过渡区域位于与不同预测单元相关联的预测块的采样之间的边界。如果计算装置做出进行平滑处理的判定，则进行平滑化处理，以平滑过渡区域中的预测块的采样。

126. 发明申请

WO2012067966A1 REFERENCE PICTURE LIST CONSTRUCTION FOR GENERALIZED P/B FRAMES IN VIDEO CODING 审中-公开
标题翻译：视频编码中普通P / B框架的参考图片列表结构
公开(公告)号：WO2012067966A1
公开(公告)日：2012-05-24
申请号：PCT/US2011/060426
申请日：2011-11-11
申请人： QUALCOMM INCORPORATED , CHEN, Ying , CHIEN, Wei-jung , KARCZEWICZ, Marta
发明人： CHEN, Ying , CHIEN, Wei-jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50 , H04N7/36 , H04N7/46
CPC分类号： H04N19/174 , H04N19/109 , H04N19/159 , H04N19/46 , H04N19/61 , H04N19/70
摘要： This disclosure relates to techniques for indicating that a video frame is coded as a generalized P/B (GPB) frame in order to reduce a cost of coding and constructing a second reference picture list in video coding. For a GPB frame, which has identical reference picture lists, signaling and constructing both the first and second reference picture lists may be redundant. The techniques of this disclosure may include coding syntax elements indicating that the video frame is coded as the GPB frame, and coding syntax elements indicating a number of reference pictures and reference picture list construction commands for only a first reference picture list. The techniques also include constructing the first reference picture list based on the syntax elements, and then creating the second reference picture list as a duplicate of the first reference picture list.
摘要翻译：本公开涉及用于指示视频帧被编码为广义P / B（GPB）帧的技术，以便在视频编码中降低编码成本和构建第二参考图像列表。对于具有相同参考图片列表的GPB帧，信令和构造第一和第二参考图片列表可能是多余的。本公开的技术可以包括指示视频帧被编码为GPB帧的语法元素的编码，以及仅指示第一参考图片列表的指示参考图片的数量和参考图片列表构造命令的语法元素的编码。这些技术还包括基于语法元素构建第一参考图片列表，然后创建第二参考图片列表作为第一参考图片列表的副本。

127. 发明申请

WO2012039936A1 CODING STEREO VIDEO DATA 审中-公开
标题翻译：编码立体声视频数据
公开(公告)号：WO2012039936A1
公开(公告)日：2012-03-29
申请号：PCT/US2011/050699
申请日：2011-09-07
申请人： QUALCOMM INCORPORATED , CHEN, Ying , WANG, Hongqiang , KARCZEWICZ, Marta
发明人： CHEN, Ying , WANG, Hongqiang , KARCZEWICZ, Marta
IPC分类号： H04N13/00 , H04N7/24
CPC分类号： H04N19/597 , H04N13/161
摘要： In one example, a method of decoding video data comprising base layer data having a first resolution and enhancement layer data having the first resolution includes decoding the base layer data, wherein the base layer data comprises a reduced resolution version of a left view relative to the first resolution and a reduced resolution version of a right view relative to the first resolution. The method also includes decoding enhancement layer data comprising enhancement data for exactly one of the left view and the right view, wherein the enhancement data has the first resolution, and wherein decoding the enhancement layer data comprises decoding the enhancement layer data relative to at least a portion of the base layer data.
摘要翻译：在一个示例中，解码包括具有第一分辨率的基本层数据和具有第一分辨率的增强层数据的视频数据的方法包括对基本层数据进行解码，其中基本层数据包括相对于第一分辨率的左视图的缩小分辨率版本第一个决议和相对于第一个决议的正确观点的减少分辨率版本。该方法还包括解码增强层数据，其中包括用于左视图和右视图中的一个的增强数据，其中增强数据具有第一分辨率，并且其中解码增强层数据包括相对于至少一个基层数据的一部分。

128. 发明申请

WO2012024081A1 LOW COMPLEXITY ADAPTIVE FILTER 审中-公开
标题翻译：低复杂自适应滤波器
公开(公告)号：WO2012024081A1
公开(公告)日：2012-02-23
申请号：PCT/US2011/046238
申请日：2011-08-02
申请人： QUALCOMM INCORPORATED , CHONG, In Suk , CHIEN, Wei-Jung , KARCZEWICZ, Marta
发明人： CHONG, In Suk , CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/82 , H04N19/117 , H04N19/14 , H04N19/192 , H04N19/46 , H04N19/61 , H04N19/96
摘要： For a first series of video blocks, an encoder determines two filters, a first decoding filter that is to be transmitted to a decoder and a first interim filter that is not to be transmitted to the decoder. The first interim filter is used to determine which coded units of a second series of video blocks are to be filtered. After a decision is made as to which coded units of the second series of video blocks are to be filtered, the encoder determines a second decoding filter for the second series of video blocks and transmits the second decoding filter to the decoder. In addition to determining the second decoding filter, the encoder also determines a second interim filter, which the encoder uses to determine which coded units of a third series of video blocks are to be filtered. This process may repeat for many series of video blocks.
摘要翻译：对于第一系列视频块，编码器确定两个滤波器，即要发送到解码器的第一解码滤波器和不被传送到解码器的第一中间滤波器。第一中间滤波器用于确定要过滤的第二系列视频块的哪些编码单元。在对第二系列视频块的哪个编码单元进行滤波的决定之后，编码器确定用于第二系列视频块的第二解码滤波器，并将第二解码滤波器发送到解码器。除了确定第二解码滤波器之外，编码器还确定第二中间滤波器，编码器用于确定第三系列视频块的哪些编码单元将被滤波。对于许多系列视频块，此过程可能会重复。

129. 发明申请

WO2012018953A1 SIGNALING ATTRIBUTES FOR NETWORK-STREAMED VIDEO DATA 审中-公开
标题翻译：用于网络流媒体视频数据的信号属性
公开(公告)号：WO2012018953A1
公开(公告)日：2012-02-09
申请号：PCT/US2011/046481
申请日：2011-08-03
申请人： QUALCOMM INCORPORATED , CHEN, Ying , CHEN, Peisong , KARCZEWICZ, Marta
发明人： CHEN, Ying , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N21/816 , H04N19/597 , H04N19/70 , H04N21/21805 , H04N21/235 , H04N21/2365 , H04N21/435 , H04N21/6125 , H04N21/6581 , H04N21/84
摘要： In one example, an apparatus includes a processor configured to receive video data for two or more views of a scene, determine horizontal locations of camera perspectives for each of the two or more views, assign view identifiers to the two or more views such that the view identifiers correspond to the relative horizontal locations of the camera perspectives, form a representation comprising a subset of the two or more views, and, in response to a request from a client device, send information indicative of a maximum view identifier and a minimum view identifier for the representation to the client device.
摘要翻译：在一个示例中，设备包括处理器，其被配置为接收用于场景的两个或多个视图的视频数据，确定用于两个或更多个视图中的每一个的相机视角的水平位置，将视图标识符分配给两个或更多个视图，使得视图标识符对应于相机透视图的相对水平位置，形成包括两个或多个视图的子集的表示，并且响应于来自客户端设备的请求，发送指示最大视图标识符和最小视图的信息客户端设备的表示标识符。

130. 发明申请

WO2012003237A1 SIGNALING VIDEO SAMPLES FOR TRICK MODE VIDEO REPRESENTATIONS 审中-公开
标题翻译：信号视频样本用于TRICK模式视频表示
公开(公告)号：WO2012003237A1
公开(公告)日：2012-01-05
申请号：PCT/US2011/042447
申请日：2011-06-29
申请人： QUALCOMM INCORPORATED , CHEN, Ying , KARCZEWICZ, Marta
发明人： CHEN, Ying , KARCZEWICZ, Marta
IPC分类号： H04N7/24
CPC分类号： H04N21/8451 , H04N21/64322 , H04N21/6587 , H04N21/8455 , H04N21/85406
摘要： This disclosure describes techniques relevant to HTTP streaming of media data. According to these techniques, a server device may signal a byte range for at least one intra-decodable (I-frame) of a video fragment. According to the techniques of this disclosure, a client device may communicate a request to a server device to retrieve the at least one I-frame based on the signaled byte range, and use the retrieved I-frame to provide a high speed version of a video presentation that includes the at least one I-frame. A high speed version of a video presentation may be a trick mode of the video presentation, such as a fast forward or fast rewind version of the video presentation.
摘要翻译：本公开描述了与媒体数据的HTTP流相关的技术。根据这些技术，服务器设备可以向视频片段的至少一个可解码（I帧）信号发送字节范围。根据本公开的技术，客户端设备可以将服务器设备的请求传达到基于信号的字节范围来检索至少一个I帧，并使用所检索的I帧来提供高速版本的包括至少一个I帧的视频呈现。视频呈现的高速版本可以是视频呈现的技巧模式，诸如视频呈现的快进或快退倒版。

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