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61. 发明申请

US20100158103A1 COMBINED SCHEME FOR INTERPOLATION FILTERING, IN-LOOP FILTERING AND POST-LOOP FILTERING IN VIDEO CODING 有权
标题翻译：嵌入式过滤，视频编码中的环路滤波和后循环滤波的组合方案
公开(公告)号：US20100158103A1
公开(公告)日：2010-06-24
申请号：US12641670
申请日：2009-12-18
申请人： Yan Ye , Marta Karczewicz , Wei-Jung Chien
发明人： Yan Ye , Marta Karczewicz , Wei-Jung Chien
IPC分类号： H04N7/12
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滤波技术。滤波技术可以基于各种因素来选择视频单元的每个视频块的一种或多种不同类型的滤波，例如视频块是帧间编码还是帧内编码，以及在运动补偿过程中是否进行自适应插值在编码视频块期间。当执行自适应插值时，自适应插值可以提供一些过滤水平，这在一些情况下不必要地或不期望地进行额外的滤波。

62. 发明授权

US10123050B2 Filtering video data using a plurality of filters 有权
公开(公告)号：US10123050B2
公开(公告)日：2018-11-06
申请号：US12406585
申请日：2009-03-18
申请人： Marta Karczewicz , Wei-Jung Chien
发明人： Marta Karczewicz , Wei-Jung Chien
IPC分类号： H04N19/85 , H04N19/80 , H04N19/117 , H04N19/46 , H04N19/44
摘要： Systems and methods of filtering video data using a plurality of filters are disclosed. In an embodiment, a method includes receiving and decoding a plurality of filters embedded in a video data bitstream at a video decoder. The method includes selecting, based on information included in the video data bitstream, a particular filter of the plurality of filters. The method further includes applying the particular filter to at least a portion of decoded video data of the video data bitstream to produce filtered decoded video data.

63. 发明授权

US09532066B2 Motion vector prediction 有权
标题翻译：运动矢量预测
公开(公告)号：US09532066B2
公开(公告)日：2016-12-27
申请号：US13245668
申请日：2011-09-26
申请人： Wei-Jung Chien , Peisong Chen , Marta Karczewicz
发明人： Wei-Jung Chien , Peisong Chen , Marta Karczewicz
IPC分类号： H04N7/26 , H04N19/463 , H04N19/52 , H04N19/176 , H04N19/70 , H04N19/46 , H04N19/196 , H04N19/61
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。

64. 发明授权

US09490839B2 Variable length coding of video block coefficients 有权
标题翻译：视频块系数的可变长度编码
公开(公告)号：US09490839B2
公开(公告)日：2016-11-08
申请号：US13338891
申请日：2011-12-28
申请人： Marta Karczewicz , Xianglin Wang , Wei-Jung Chien , Liwei Guo
发明人： Marta Karczewicz , Xianglin Wang , Wei-Jung Chien , Liwei Guo
IPC分类号： H04N11/04 , H03M7/42 , H04N19/13 , H04N19/60 , H04N19/93
CPC分类号： H03M7/42 , H04N19/13 , H04N19/60 , H04N19/93
摘要： This disclosure describes techniques for coding transform coefficients for a block of video data. According to some aspects of this disclosure, a coder (e.g., an encoder or decoder) may map between a code number cn and level_ID and run values associated with a first transform coefficient of the block of video data according to a first technique (e.g., a structured mapping), and map between a code number cn and level_ID and run values associated with a second coefficient of the block using a second technique. According to other aspects of this disclosure, the coder may map between a code number cn and level_ID and run syntax elements using different mathematical relationships, depending on a determined value of the code number cn or the level_ID syntax element. For example, the coder may access a mapping table of a plurality of mapping tables differently, dependent on the determined value.
摘要翻译：本公开描述了用于编码视频数据块的变换系数的技术。根据本公开的一些方面，编码器（例如，编码器或解码器）可以根据第一技术（例如，编码器或解码器）在视频数据块的第一变换系数与代码号cn和level_ID之间映射和运行值，结构化映射），并且使用第二技术在代码号cn和level_ID之间映射和与块的第二系数相关联的运行值。根据本公开的其他方面，编码器可以根据代码号cn或level_ID语法元素的确定值，在代码号cn和level_ID之间映射并使用不同的数学关系运行语法元素。例如，编码器可以根据确定的值不同地访问多个映射表的映射表。

65. 发明授权

US09247265B2 Multi-input adaptive filter based on combination of sum-modified Laplacian filter indexing and quadtree partitioning 有权
标题翻译：基于和 - 修正拉普拉斯滤波器索引和四叉树分割的组合的多输入自适应滤波器
公开(公告)号：US09247265B2
公开(公告)日：2016-01-26
申请号：US13178399
申请日：2011-07-07
申请人： In Suk Chong , Marta Karczewicz , Wei-Jung Chien
发明人： In Suk Chong , Marta Karczewicz , Wei-Jung Chien
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/42 , H04N19/176 , H04N19/70 , H04N19/46 , H04N19/61 , H04N19/96 , H04N19/117 , H04N19/14 , H04N19/182 , H04N19/82 , H04N19/85
CPC分类号： H04N19/439 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/42 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/85 , H04N19/96
摘要： Filtering is applied at a video encoder, and filter information is encoded in the bitstream to enable a video decoder to identify the filtering that was applied at the video encoder. The video decoder receives encoded video data that includes the filter information, decodes the video data, and applies filtering based on the filtering information. In this way, the decoder applies the same filtering that was applied at the encoder. Video can be encoded utilizing multiple filters with Laplacian filter indexing for multiple inputs for coded units partitioned using a quadtree partitioning scheme.
摘要翻译：过滤应用于视频编码器，并且滤波器信息被编码在比特流中以使视频解码器能够识别在视频编码器处应用的滤波。视频解码器接收包括滤波器信息的编码视频数据，对视频数据进行解码，并根据滤波信息应用滤波。以这种方式，解码器应用在编码器处应用的相同的滤波。可以使用具有拉普拉斯滤波器索引的多个滤波器对视频进行编码，用于使用四叉树分区方案分割的编码单元的多个输入。

66. 发明授权

US08913662B2 Indicating intra-prediction mode selection for video coding using CABAC 有权
标题翻译：使用CABAC指示视频编码的帧内预测模式选择
公开(公告)号：US08913662B2
公开(公告)日：2014-12-16
申请号：US13343573
申请日：2012-01-04
申请人： Marta Karczewicz , Xianglin Wang , Wei-Jung Chien
发明人： Marta Karczewicz , Xianglin Wang , Wei-Jung Chien
IPC分类号： H04N7/32 , H04N19/196 , H04N19/13 , H04N19/11 , H04N19/463
CPC分类号： H04N19/13 , H04N19/11 , H04N19/137 , H04N19/139 , H04N19/196 , H04N19/463
摘要： For a block of video data, a video encoder can signal to a video decoder, using a context-based adaptive binary arithmetic coding (CABAC) process, a selected intra-prediction mode using a codeword that is mapped to a modified intra-prediction mode index. The video decoder can perform a context-based adaptive binary arithmetic coding (CABAC) process to determine the codeword signaled by the video encoder, determine the modified intra-prediction mode index corresponding to the codeword, determine most probable modes based on a context, map the modified intra-prediction mode index to an intra-prediction mode index by comparing the modified intra-prediction mode index to the mode indexes of the most probable modes, and determine the selected intra-prediction mode used to encode the block of video data based on the intra-prediction mode index.
摘要翻译：对于视频数据块，视频编码器可以使用基于上下文的自适应二进制算术编码（CABAC）处理视频解码器，使用映射到修改的帧内预测模式的码字来选择的帧内预测模式指数。视频解码器可以执行基于上下文的自适应二进制算术编码（CABAC）处理，以确定由视频编码器发信号的码字，确定对应于码字的经修改的帧内预测模式索引，基于上下文确定最可能的模式，映射通过将修改的帧内预测模式索引与最可能模式的模式索引进行比较来确定帧内预测模式索引到帧内预测模式索引，并且确定用于对视频数据块进行编码的所选择的帧内预测模式在帧内预测模式指标上。

67. 发明授权

US08885704B2 Coding prediction modes in video coding 有权
标题翻译：视频编码中的编码预测模式
公开(公告)号：US08885704B2
公开(公告)日：2014-11-11
申请号：US13248653
申请日：2011-09-29
申请人： Wei-Jung Chien , Xianglin Wang , Marta Karczewicz
发明人： Wei-Jung Chien , Xianglin Wang , Marta Karczewicz
IPC分类号： H04N7/12 , H04N19/196 , H04N19/463 , H04N19/194 , H04N19/61 , H04N19/96 , H04N19/159 , H04N19/13
CPC分类号： H04N19/428 , H04N19/13 , H04N19/159 , H04N19/194 , H04N19/196 , H04N19/463 , H04N19/61 , H04N19/96
摘要： A video encoder can maintain, by generating, storing, adjusting, altering, and/or updating, one or more variable length coding (VLC) tables that represent a mapping of prediction modes to codewords. One or more codewords representing a selected prediction mode can be communicated to the decoder for a CU of a frame. The decoder maintains one or more VLC tables that match the VLC tables maintained by the video encoder. Thus, based on the one or more codewords received from the video encoder, the video decoder can determine the prediction mode used to encode a CU.
摘要翻译：视频编码器可以通过生成，存储，调整，改变和/或更新表示将预测模式映射到码字的一个或多个可变长度编码（VLC）表来维持。表示所选择的预测模式的一个或多个码字可以被传送到解码器，用于帧的CU。解码器维护与视频编码器维护的VLC表匹配的一个或多个VLC表。因此，基于从视频编码器接收的一个或多个码字，视频解码器可以确定用于编码CU的预测模式。

68. 发明授权

US08611435B2 Combined scheme for interpolation filtering, in-loop filtering and post-loop filtering in video coding 有权
标题翻译：视频编码中的内插滤波，环路滤波和后置环路滤波的组合方案
公开(公告)号：US08611435B2
公开(公告)日：2013-12-17
申请号：US12641670
申请日：2009-12-18
申请人： Yan Ye , Marta Karczewicz , Wei-Jung Chien
发明人： Yan Ye , Marta Karczewicz , Wei-Jung Chien
IPC分类号： H04N11/04
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滤波技术。滤波技术可以基于各种因素来选择视频单元的每个视频块的一种或多种不同类型的滤波，例如视频块是帧间编码还是帧内编码，以及在运动补偿过程中是否进行自适应插值在编码视频块期间。当执行自适应插值时，自适应插值可以提供一些过滤水平，这在一些情况下不必要地或不期望地进行额外的滤波。

69. 发明申请

US20130022119A1 BUFFERING PREDICTION DATA IN VIDEO CODING 有权
标题翻译：在视频编码中缓冲预测数据
公开(公告)号：US20130022119A1
公开(公告)日：2013-01-24
申请号：US13550377
申请日：2012-07-16
申请人： Wei-Jung Chien , Yunfei Zheng , Xianglin Wang , Marta Karczewicz , Liwei Guo
发明人： Wei-Jung Chien , Yunfei Zheng , Xianglin Wang , Marta Karczewicz , Liwei Guo
IPC分类号： H04N7/32
CPC分类号： H04N19/11 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/51 , H04N19/593
摘要： In an example, aspects of this disclosure relate to a method of coding video data that generally includes determining prediction information for a block of video data, where the block is included in a coded unit of video data and positioned below a top row of above-neighboring blocks in the coded unit, and where the prediction information for the block is based on prediction information from one or more other blocks in the coded unit but not based on prediction information from any of the top row of blocks in the coded unit. The method also generally includes coding the block based on the determined prediction information.
摘要翻译：在一个示例中，本公开的方面涉及一种编码视频数据的方法，其通常包括确定视频数据块的预测信息，其中该块被包括在视频数据的经译码单元中并位于上一行的上一行之前，并且其中块的预测信息基于来自编码单元中的一个或多个其他块的预测信息，而不是基于来自编码单元中的顶行中的任一个的预测信息。该方法还通常包括基于所确定的预测信息对块进行编码。

70. 发明申请

US20130003835A1 CODING OF LAST SIGNIFICANT TRANSFORM COEFFICIENT 有权
标题翻译：最新重要变换系数的编码
公开(公告)号：US20130003835A1
公开(公告)日：2013-01-03
申请号：US13534332
申请日：2012-06-27
申请人： Joel Sole Rojals , Wei-Jung Chien , Rajan Laxman Joshi , Marta Karczewicz
发明人： Joel Sole Rojals , Wei-Jung Chien , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N7/30 , H04N7/32
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。

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