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151. 发明申请

WO2012145663A1 MOTION VECTOR PREDICTION IN VIDEO CODING 审中-公开
标题翻译：运动矢量预测在视频编码
公开(公告)号：WO2012145663A1
公开(公告)日：2012-10-26
申请号：PCT/US2012/034508
申请日：2012-04-20
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： H04N19/513 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/52 , H04N19/597
摘要： Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.
摘要翻译：本公开的方面在一个示例中涉及一种包括从第一视图识别第一时间位置中的第一视频数据块的方法，其中第一块与第一视差运动矢量相关联。该方法还包括确定与第二视频数据块相关联的第二运动矢量的运动矢量预测器，其中运动矢量预测器基于第一视差运动矢量。当第二运动矢量包括视差运动矢量时，该方法包括确定运动矢量预测器包括缩放第一视差运动矢量以产生缩放运动矢量预测器，其中缩放第一视差运动矢量包括应用包括视距的第二视差运动矢量除以第一运动矢量与第一视差运动矢量的视距。

152. 发明申请

WO2012134956A1 COMBINED REFERENCE PICTURE LIST CONSTRUCTION AND MAPPING 审中-公开
标题翻译：组合参考图表列表结构和映射
公开(公告)号：WO2012134956A1
公开(公告)日：2012-10-04
申请号：PCT/US2012/030153
申请日：2012-03-22
申请人： QUALCOMM Incorporated , CHIEN, Wei-Jung , CHEN, Ying , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , CHEN, Ying , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/172 , H04N19/103 , H04N19/44 , H04N19/70
摘要： The example techniques of this disclosure are directed to default construction techniques for the construction of a combined reference picture list, and default mapping techniques for the combined reference picture list. In some examples, a video coder may construct first and second reference picture lists from frame number values, and construct the combined reference picture list from the frame number values of the first and second reference picture lists. In some examples, a video coder may construct first and second reference picture lists from picture order count (POC) values, and construct the combined reference picture list from the POC values of the first and second reference picture lists. In some examples, a video coder may construct a combined reference picture list from received information for the construction, and map the pictures of the combined reference picture list to one of a first or second reference picture list.
摘要翻译：本公开的示例性技术涉及用于构建组合参考图片列表的默认构造技术以及用于组合的参考图片列表的默认映射技术。在一些示例中，视频编码器可以从帧号值构造第一和第二参考图片列表，并且从第一和第二参考图片列表的帧号码构造组合的参考图片列表。在一些示例中，视频编码器可以从图像顺序计数（POC）值构建第一和第二参考图像列表，并且从第一和第二参考图像列表的POC值构建组合的参考图像列表。在一些示例中，视频编码器可以从用于构造的接收信息构建组合参考图片列表，并将组合的参考图片列表的图片映射到第一或第二参考图片列表中的一个。

153. 发明申请

WO2012122480A1 VIDEO CODING TECHNIQUES FOR CODING DEPENDENT PICTURES AFTER RANDOM ACCESS 审中-公开
标题翻译：视频编码技术在随机访问后编码依赖图像
公开(公告)号：WO2012122480A1
公开(公告)日：2012-09-13
申请号：PCT/US2012/028490
申请日：2012-03-09
申请人： QUALCOMM INCORPORATED , CHEN, Ying , COBAN, Muhammed Zeyd , CHEN, Peisong , KARCZEWICZ, Marta
发明人： CHEN, Ying , COBAN, Muhammed Zeyd , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/70 , G06T9/004 , H04N19/503 , H04N19/61
摘要： In general, this disclosure describes techniques for coding video data for random access. In particular, this disclosure proposes to code a syntax element that indicates if a dependent picture may be successfully decoded in the event of a random access request to a clean decoding refresh (CDR) picture and may be required for decoding the pictures following the clean decoding refresh (CDR) picture in display order.
摘要翻译：通常，本公开描述了用于编码用于随机访问的视频数据的技术。特别地，本公开提议编写一个语法元素，该语法元素指示在对干净的解码刷新（CDR）图像的随机访问请求的情况下依赖图像是否可以被成功解码，并且可能需要在干扰解码之后对图像进行解码刷新（CDR）图片显示顺序。

154. 发明申请

WO2012122284A9 CODING OF TRANSFORM COEFFICIENTS FOR VIDEO CODING 审中-公开
公开(公告)号：WO2012122284A9
公开(公告)日：2012-09-13
申请号：PCT/US2012/028093
申请日：2012-03-07
申请人： QUALCOMM INCORPORATED , 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 , H04N7/30 , H04N7/50
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.

155. 发明申请

WO2012122176A1 DECODED PICTURE BUFFER MANAGEMENT 审中-公开
标题翻译：解码图片缓存管理
公开(公告)号：WO2012122176A1
公开(公告)日：2012-09-13
申请号：PCT/US2012/027896
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： H04N7/26 , H04N7/36
CPC分类号： H04N19/573 , H04N19/105 , H04N19/172 , H04N19/31 , H04N19/423 , H04N19/43 , H04N19/433
摘要： The example techniques described in this disclosure are generally related to decoded picture buffer management. One or more pictures stored in the decoded picture buffer may be usable for prediction, and others may not. Pictures that are usable for prediction may be referred to as reference pictures. The example techniques described herein may determine whether a reference picture, that is currently indicated to be usable for inter-prediction, should be indicated to be unusable for inter-prediction.
摘要翻译：本公开中描述的示例技术通常涉及解码图像缓冲器管理。存储在解码图像缓冲器中的一个或多个图像可以用于预测，而其他图像可能不可用。可用于预测的图片可以被称为参考图片。本文描述的示例技术可以确定当前指示为可用于帧间预测的参考图像是否应被指示为不可用于帧间预测。

156. 发明申请

WO2012099692A1 MOTION VECTOR PREDICTION 审中-公开
标题翻译：运动矢量预测
公开(公告)号：WO2012099692A1
公开(公告)日：2012-07-26
申请号：PCT/US2011/067547
申请日：2011-12-28
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , CHEN, Peisong , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/463 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/52 , H04N19/61 , H04N19/70
摘要： A method of coding video data includes determining a candidate motion vector for each of one or more candidate portions of a video frame and determining a current motion vector for a current portion of a current frame. The current motion vector identifies a portion of a reference frame that at least partially matches the current portion of the current frame. The method also includes calculating a motion vector difference between the current motion vector and each of the candidate motion vectors, selecting one of the candidate motion vectors based on the calculated motion vector differences, signaling an index identifying the candidate portion having the selected one of the candidate motion vectors, and signaling the corresponding motion vector difference calculated with respect to the selected one of the candidate motion vectors.
摘要翻译：一种编码视频数据的方法包括确定视频帧的一个或多个候选部分中的每一个的候选运动矢量，并确定当前帧的当前部分的当前运动矢量。当前运动矢量标识至少部分地匹配当前帧的当前部分的参考帧的一部分。该方法还包括：计算当前运动矢量与每个候选运动矢量之间的运动矢量差，基于所计算的运动矢量差选择候选运动矢量之一，发信号通知识别候选部分的索引，候选运动矢量，并且发送相对于所选择的一个候选运动矢量计算的对应运动矢量差。

157. 发明申请

WO2012099656A1 COMBINED REFERENCE PICTURE LIST CONSTRUCTION FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的组合参考图片列表构造
公开(公告)号：WO2012099656A1
公开(公告)日：2012-07-26
申请号：PCT/US2011/064225
申请日：2011-12-09
申请人： QUALCOMM Incorporated , CHEN, Ying , COBAN, Muhammed Zeyd , CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Peisong
发明人： CHEN, Ying , COBAN, Muhammed Zeyd , CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Peisong
IPC分类号： H04N7/26 , H04N7/36 , H04N7/46
CPC分类号： H04N19/577 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/56 , H04N19/573 , H04N19/70
摘要： This disclosure relates to techniques for constructing a combined reference picture list, List C, based on List 0 and List 1, used for uni-directional prediction of video blocks in any direction. The techniques include coding one or more syntax elements defined to indicate construction information for List C, and performing reference picture list construction for List C from List 0 and List 1 based on the syntax elements. The one or more syntax elements may indicate that List C is used for uni-directional prediction, and may also indicate a number of reference pictures identified in List C and a reference index of a reference picture for each entry in List C. Each coded video block of a B slice may have an associated syntax element, i.e., inter_pred_idc, to indicate whether the video block is bi-predicted from List 0 and List 1 (Bi) or uni-directional predicted from List C (Pred_LC).
摘要翻译：本公开涉及用于构建基于列表0和列表1的组合参考图片列表C的技术，其用于在任何方向上对视频块进行单向预测。这些技术包括编码一个或多个语法元素，其定义为指示列表C的构造信息，并且基于语法元素从列表0和列表1执行列表C的参考图像列表构造。一个或多个语法元素可以指示列表C用于单向预测，并且还可以指示列表C中标识的参考图片的数量和列表C中的每个条目的参考图片的参考索引。每个编码视频 B片的块可以具有相关联的语法元素，即inter_pred_idc，以指示视频块是从列表0和列表1（Bi）是双向预测的还是从列表C预测的单向（Pred_LC）。

158. 发明申请

WO2012094232A1 VIDEO FILTERING USING A COMBINATION OF ONE-DIMENSIONAL SWITCHED FILTER AND ONE-DIMENSIONAL ADAPTIVE FILTER 审中-公开
标题翻译：使用一维开关滤波器和一维自适应滤波器组合的视频滤波
公开(公告)号：WO2012094232A1
公开(公告)日：2012-07-12
申请号：PCT/US2011/067882
申请日：2011-12-29
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/46
摘要： In one example, this disclosure describes a method of loop filtering of reconstructed video data during a video coding process. The method may comprising applying a one dimensional (1D) switched filter to the video data in a first dimension that is either horizontal or vertical, and applying a 1D adaptive filter to the video data in a second dimension that is perpendicular to the first dimension.
摘要翻译：在一个示例中，本公开描述了在视频编码处理期间对重建的视频数据进行环路滤波的方法。该方法可以包括在水平或垂直的第一维度中对视频数据应用一维（1D）切换滤波器，以及在垂直于第一维度的第二维度中向视频数据应用1D自适应滤波器。

159. 发明申请

WO2012054805A1 ADAPTIVE SCANNING 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的自适应扫描
公开(公告)号：WO2012054805A1
公开(公告)日：2012-04-26
申请号：PCT/US2011/057219
申请日：2011-10-21
申请人： QUALCOMM INCORPORATED , COBAN, Muhammed, Zeyd , KARCZEWICZ, Marta
发明人： COBAN, Muhammed, Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/14 , H04N19/129 , H04N19/176 , H04N19/46 , H04N19/70
摘要： In an example, an apparatus for decoding video data includes a video decoder that is configured to determine a number of transform coefficients associated with a block of video data, and to determine whether the number of transform coefficients exceeds a predetermined threshold. The video decoder is also configured to identify a scan order when the number of transform coefficients exceeds the predetermined threshold, wherein the scan order indicates an order in which the transform coefficients have been serialized from a two-dimensional array to a one-dimensional array, and to apply the scan order to inverse scan the number of transform coefficients associated with a block of video data.
摘要翻译：在一个示例中，用于解码视频数据的装置包括视频解码器，其被配置为确定与视频数据块相关联的变换系数的数量，并且确定变换系数的数量是否超过预定阈值。视频解码器还被配置为当变换系数的数量超过预定阈值时识别扫描顺序，其中扫描顺序指示变换系数已经从二维阵列串行化为一维阵列的顺序，并且应用扫描顺序对与视频数据块相关联的变换系数的数量进行逆扫描。

160. 发明申请

WO2012044925A1 SELECTIVE INDICATION OF TRANSFORM SIZES 审中-公开
标题翻译：变压器尺寸的选择指标
公开(公告)号：WO2012044925A1
公开(公告)日：2012-04-05
申请号：PCT/US2011/054210
申请日：2011-09-30
申请人： QUALCOMM INCORPORATED , CHEN, Peisong , KARCZEWICZ, Marta , PANCHAL, Rahul, P.
发明人： CHEN, Peisong , KARCZEWICZ, Marta , PANCHAL, Rahul, P.
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50
CPC分类号： H04N19/96 , H04N19/119 , H04N19/122 , H04N19/61 , H04N19/70
摘要： During a video encoding process, a video encoder may transform the residual data of a coding unit (CU) using a single transform if the CU only has a single prediction unit (PU). If the CU has multiple PUs, the video encoder may transform the residual data using multiple transforms. The video encoder outputs an indication of the size of a transform used to transform residual data of the CU only when the CU has more than one PU. If a video decoder receives such an indication, the video decoder may reconstruct residual data of the CU using a transform of the indicated size. Otherwise, the video decoder may reconstruct the residual data of the CU using a transform having same size as the CU.
摘要翻译：在视频编码处理期间，如果CU仅具有单个预测单元（PU），则视频编码器可以使用单个变换来变换编码单元（CU）的残差数据。如果CU具有多个PU，则视频编码器可以使用多个变换来变换残差数据。视频编码器仅在CU具有多于一个PU时输出用于变换CU的残留数据的变换大小的指示。如果视频解码器接收到这样的指示，则视频解码器可以使用所指示的大小的变换来重建CU的残留数据。否则，视频解码器可以使用具有与CU相同大小的变换来重构CU的残留数据。

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