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31. 发明申请

WO2013003581A1 CODING OF LAST SIGNIFICANT TRANSFORM COEFFICIENT 审中-公开
标题翻译：最新重要变换系数的编码
公开(公告)号：WO2013003581A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/044629
申请日：2012-06-28
申请人： QUALCOMM INCORPORATED , SOLE ROJALS, Joel , CHIEN, Wei-Jung , JOSHI, Rajan Laxman , KARCZEWICZ, Marta
发明人： SOLE ROJALS, Joel , CHIEN, Wei-Jung , JOSHI, Rajan Laxman , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/13 , H04N19/129 , H04N19/196 , H04N19/44 , H04N19/463 , H04N19/91
摘要： A video encoder determines that the last significant coefficient (LSC) of a transform coefficient block occurs at a given ordinal position according to a coding scanning order. The video encoder generates a coordinate indicator that specifies the coordinates of a given transform coefficient in the transform coefficient block. The given transform coefficient occurs at the same ordinal position according to an assumed scanning order. A video decoder receives the coordinate indicator and converts the coordinate indicator into a scan-based LSC indicator. The scan-based LSC indicator indicates the ordinal position of the LSC.
摘要翻译：视频编码器根据编码扫描顺序确定变换系数块的最后有效系数（LSC）发生在给定的顺序位置处。视频编码器生成指定变换系数块中的给定变换系数的坐标的坐标指示符。给定的变换系数根据假定的扫描顺序发生在相同的序数位置。视频解码器接收坐标指示符并将坐标指示符转换为基于扫描的LSC指示符。基于扫描的LSC指示符表示LSC的顺序位置。

32. 发明申请

WO2012167119A1 INTRA PREDICTION MODE CODING WITH DIRECTIONAL PARTITIONS 审中-公开
标题翻译：内部预测模式编码与方向分区
公开(公告)号：WO2012167119A1
公开(公告)日：2012-12-06
申请号：PCT/US2012/040510
申请日：2012-06-01
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , ZHENG, Yunfei , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , ZHENG, Yunfei , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/34
CPC分类号： H04N19/11 , H04N19/176 , H04N19/46 , H04N19/593
摘要： A video coder can determine a most probable mode for a block of video data using non-square partitions based on the direction of the non-square partitions. When the direction of the non-square partitions is vertical, an intra prediction mode of a left-neighboring block can be selected as the most probable intra prediction mode, and when the direction of the non-square partitions is horizontal, an intra prediction mode of an above-neighboring block can be selected as the most probable intra prediction mode.
摘要翻译：视频编码器可以基于非正方形分区的方向，使用非正方形分区来确定视频数据块的最可能模式。当非正方形分区的方向是垂直方向时，可以选择左相邻块的帧内预测模式作为最可能的帧内预测模式，并且当非正方形分区的方向是水平时，帧内预测模式可以选择上述相邻块作为最可能的帧内预测模式。

33. 发明申请

WO2012102973A1 SINGLE REFERENCE PICTURE LIST CONSTRUCTION FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的单一参考图片列表结构
公开(公告)号：WO2012102973A1
公开(公告)日：2012-08-02
申请号：PCT/US2012/022102
申请日：2012-01-20
申请人： QUALCOMM INCORPORATED , CHEN, Peisong , CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Ying
发明人： CHEN, Peisong , CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Ying
IPC分类号： H04N7/26 , H04N7/46 , H04N7/50
CPC分类号： H04N19/577 , H04N19/109 , H04N19/159 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/46 , H04N19/61
摘要： The example techniques described in this disclosure provide for an efficient manner to encode or decode a video block of a picture using a single reference picture list. The single reference picture list may include identifiers for reference picture or pictures used to encode or decode the video block. In some examples, a video encoder or decoder may encode or decode a video block that is predicted from two reference pictures using the single reference picture list, and encode or decode a video block that is predicted from one reference picture using the same, single reference picture list.
摘要翻译：本公开中描述的示例技术提供了使用单个参考图片列表对图像的视频块进行编码或解码的有效方式。单个参考图片列表可以包括用于编码或解码视频块的参考图片或图片的标识符。在一些示例中，视频编码器或解码器可以使用单个参考图片列表从两个参考图片预测的视频块编码或解码，并且使用相同的单个参考来对从一个参考图片预测的视频块进行编码或解码图片列表。

34. 发明申请

WO2012087499A1 SUB-PIXEL INTERPOLATION FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的子像素插值
公开(公告)号：WO2012087499A1
公开(公告)日：2012-06-28
申请号：PCT/US2011/062334
申请日：2011-11-29
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/523
摘要： In one example, an apparatus includes a video coder configured to determine a first set of support pixels to interpolate a value for a first sub-integer pixel position of a pixel of a reference block of video data; determine a second, different set of support pixels used to interpolate a value for a second sub-integer pixel position of the pixel; determine a third, different set of support pixels used to interpolate a value for a third sub-integer pixel position of the pixel; combine corresponding values from the first, second, and third sets of support pixels; apply an interpolation filter to the combined values to calculate a value for a fourth sub-integer-pixel comprising a one-eighth-integer position of the pixel and code a portion of a current block of the video data relative to the fourth one-eighth-integer pixel position of the reference block.
摘要翻译：在一个示例中，一种设备包括：视频编码器，被配置为确定第一组支持像素以插值视频数据的参考块的像素的第一子整数像素位置的值; 确定用于内插所述像素的第二子整数像素位置的值的第二不同的支持像素集合; 确定用于内插像素的第三子整数像素位置的值的第三不同的支持像素集合; 组合来自第一，第二和第三组支持像素的对应值; 将内插滤波器应用于组合值以计算包括像素的八分之一整数位置的第四子整数像素的值，并且将视频数据的当前块的一部分相对于第四个八分之一 - 参考块的整数像素位置。

35. 发明申请

WO2012051000A1 ADAPTIVE MOTION VECTOR RESOLUTION SIGNALING FOR VIDEO CODING 审中-公开
标题翻译：自适应运动矢量分解信号用于视频编码
公开(公告)号：WO2012051000A1
公开(公告)日：2012-04-19
申请号：PCT/US2011/054629
申请日：2011-10-03
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 , H04N7/36 , H04N7/46 , H04N7/50
CPC分类号： H04N19/523 , H04N19/13 , H04N19/139 , H04N19/176 , H04N19/463 , H04N19/91
摘要： A video encoder may be configured to adaptively select a sub-pixel precision for motion vectors used to encode video data. The video encoder may further entropy encode an indication of the sub-pixel precision using context adaptive binary arithmetic coding, where the context may correspond to the size of a block of video data for the motion vector. For example, the size may correspond to the depth of a coding unit, the size of a prediction unit of the coding unit, and/or a type for the prediction unit. The video encoder may also interpolate values for one-sixteenth pixel positions of chrominance data using bilinear interpolation. The video encoder may further encode a motion vector difference value for the motion vector using an encoding scheme corresponding to the sub-pixel precision of the motion vector. A video decoder may use similar, reciprocal techniques for decoding the video data.
摘要翻译：视频编码器可以被配置为自适应地选择用于对视频数据进行编码的运动矢量的子像素精度。视频编码器可以使用上下文自适应二进制算术编码进一步对子像素精度的指示进行熵编码，其中上下文可以对应于用于运动矢量的视频数据块的大小。例如，大小可以对应于编码单元的深度，编码单元的预测单元的大小和/或预测单元的类型。视频编码器也可以使用双线性插值内插色度数据的第十六象素位置的值。视频编码器可以使用与运动矢量的子像素精度相对应的编码方案来进一步编码运动矢量的运动矢量差值。视频解码器可以使用类似的互逆技术来解码视频数据。

36. 发明申请

WO2010075342A2 COMBINED SCHEME FOR INTERPOLATION FILTERING, IN-LOOP FILTERING AND POST-LOOP FILTERING IN VIDEO CODING 审中-公开
标题翻译：用于视频编码的插值滤波，环路滤波和环路后滤波的组合方案
公开(公告)号：WO2010075342A2
公开(公告)日：2010-07-01
申请号：PCT/US2009/069124
申请日：2009-12-22
申请人： QUALCOMM INCORPORATED , YE, Yan , KARCZEWICZ, Marta , CHIEN, Wei-Jung
发明人： YE, Yan , KARCZEWICZ, Marta , CHIEN, Wei-Jung
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50
CPC分类号： H04N19/85 , H04N19/117 , H04N19/137 , H04N19/176 , H04N19/182 , H04N19/46 , H04N19/523 , H04N19/61 , H04N19/82
摘要： In one example, this disclosure describes filtering techniques for filtering of video blocks of a video unit. The filtering techniques may select one or more different types of filtering for each video block of the video unit based on various factors such as whether the video block is inter coded or intra coded, and whether adaptive interpolations were preformed during a motion compensation process during the encoding of the video block. When adaptive interpolations were performed, the adaptive interpolations may provide a level of filtering that renders additional filtering unnecessary or undesirable in some cases.
摘要翻译：在一个示例中，本公开描述了用于过滤视频单元的视频块的过滤技术。过滤技术可以基于各种因素（例如，视频块是帧间编码的还是帧内编码的，以及自适应插值是否在视频单元期间的运动补偿处理期间预先形成）来为视频单元的每个视频块选择一个或多个不同类型的滤波视频块的编码。当执行自适应插值时，自适应插值可以提供一定程度的滤波，以在某些情况下使附加滤波不必要或不合需要。

37. 发明申请

WO2012116212A1 HIERARCHY OF MOTION PREDICTION VIDEO BLOCKS 审中-公开
标题翻译：运动预测视频块的分层
公开(公告)号：WO2012116212A1
公开(公告)日：2012-08-30
申请号：PCT/US2012/026368
申请日：2012-02-23
申请人： QUALCOMM INCORPORATED , ZHENG, Yunfei , CHIEN, Wei-Jung , KARCZEWICZ, Marta
发明人： ZHENG, Yunfei , CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/157 , H04N19/105 , H04N19/176 , H04N19/51 , H04N19/52
摘要： A video decoder is configured to obtain an index value for a current video block. The video decoder obtains a partition type for a current video block. The video decoder selects one of a plurality of defined sets of ordered candidate predictive video blocks based on the partition type of the current video block. A video decoder selects a predictive video block from a selected one of the plurality of defined sets of ordered candidate predictive video blocks based on an index value. A video decoder generates a motion vector for a current video block based on motion information of the predictive video block.
摘要翻译：视频解码器被配置为获得当前视频块的索引值。视频解码器获得当前视频块的分区类型。视频解码器基于当前视频块的分区类型来选择多个定义的有序候选预测视频块集合中的一个。视频解码器基于索引值从多个定义的有序候选预测视频块集合中的所选择的一个中选择预测视频块。视频解码器基于预测视频块的运动信息生成当前视频块的运动矢量。

38. 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。

39. 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。

40. 发明申请

WO2011103206A1 ADAPTIVE MOTION RESOLUTION FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的自适应运动分辨率
公开(公告)号：WO2011103206A1
公开(公告)日：2011-08-25
申请号：PCT/US2011/025113
申请日：2011-02-16
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Peisong
发明人： CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Peisong
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50
CPC分类号： H04N19/58 , H04N19/102 , H04N19/147 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/52 , H04N19/523 , H04N19/61
摘要： A video encoder may encode video data by adaptively selecting between one-eighth-pixel and one-quarter-pixel precision motion vectors, and signal the selected precision. In one example, an apparatus includes a video encoder to encode a block of video data using a one-eighth-pixel precision motion vector when use of the one-eighth-pixel precision motion vector is determined to be preferable for the block over a one-quarter-pixel precision motion vector, and to generate a signal value indicative of the use of the one-eighth-pixel precision motion vector for the block, and an output interface to output the encoded block and the signal value. A video decoder may be configured to receive the signal value and the encoded block, analyze the signal value to determine whether the block was encoded using one-eighth-pixel precision or one-quarter-pixel precision, and decode the block based on the determination.
摘要翻译：视频编码器可以通过在八分之一像素和四分之一像素精度的运动矢量之间进行自适应选择来对视频数据进行编码，并且将所选精度发信号。在一个示例中，一种装置包括：视频编码器，当使用八分之一像素的精确运动矢量被确定为优于一块时，使用八分之一像素的精确运动矢量对视频数据块进行编码并且生成指示使用该块的八分之一像素精度运动矢量的信号值，以及输出接口以输出编码块和信号值。视频解码器可以被配置为接收信号值和编码块，分析信号值以确定块是使用八分之一像素精度还是四分之一像素精度进行编码，并且基于该确定对块进行解码。

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