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11. 发明申请

US20120121017A1 REFERENCE PICTURE LIST CONSTRUCTION FOR GENERALIZED P/B FRAMES IN VIDEO CODING 有权
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：US20120121017A1
公开(公告)日：2012-05-17
申请号：US13274972
申请日：2011-10-17
申请人： Ying Chen , Wei-Jung Chien , Marta Karczewicz
发明人： Ying Chen , Wei-Jung Chien , Marta Karczewicz
IPC分类号： H04N7/32
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。

12. 发明授权

US09699456B2 Buffering prediction data in video coding 有权
公开(公告)号：US09699456B2
公开(公告)日：2017-07-04
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： H04N7/26 , H04N7/32 , H04N19/11 , H04N19/159 , H04N19/176 , H04N19/147 , H04N19/46 , H04N19/51 , H04N19/593
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.

13. 发明授权

US09237355B2 Adaptive motion resolution for video coding 有权
标题翻译：视频编码的自适应运动分辨率
公开(公告)号：US09237355B2
公开(公告)日：2016-01-12
申请号：US12945170
申请日：2010-11-12
申请人： Wei-Jung Chien , Marta Karczewicz , Peisong Chen
发明人： Wei-Jung Chien , Marta Karczewicz , Peisong Chen
IPC分类号： H04N11/02 , H04N19/58 , H04N19/52 , H04N19/176 , H04N19/147 , H04N19/172 , H04N19/46 , H04N19/102 , H04N19/61 , H04N19/523
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，使用八分之一像素精度的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。

14. 发明授权

US08923395B2 Video coding using intra-prediction 有权
标题翻译：使用帧内预测的视频编码
公开(公告)号：US08923395B2
公开(公告)日：2014-12-30
申请号：US13247812
申请日：2011-09-28
申请人： Xianglin Wang , Marta Karczewicz , Wei-Jung Chien
发明人： Xianglin Wang , Marta Karczewicz , Wei-Jung Chien
IPC分类号： H04N7/12 , H04N19/11 , H04N19/70 , H04N19/61 , H04N19/593 , H04N19/157 , H04N19/463 , H04N19/176
CPC分类号： H04N19/50 , H04N19/11 , H04N19/122 , H04N19/157 , H04N19/176 , H04N19/463 , H04N19/593 , H04N19/61 , H04N19/70
摘要： In general, techniques of this disclosure are related to determining a prediction characteristic associated with a coding unit of video data, wherein determining the prediction characteristic includes determining a prediction type that defines a number of prediction units associated with the coding unit. Techniques of this disclosure may also be related to generating a set of available intra-prediction modes for the coding unit based on the prediction characteristic, selecting an intra-prediction mode from the available intra-prediction modes, and applying one of the available intra-prediction modes to code the coding unit.
摘要翻译：通常，本公开的技术涉及确定与视频数据的编码单元相关联的预测特性，其中确定预测特性包括确定定义与编码单元相关联的预测单元的数量的预测类型。本公开的技术还可以涉及基于预测特性生成用于编码单元的一组可用的帧内预测模式，从可用的帧内预测模式中选择帧内预测模式，以及应用可用的帧内预测模式之一，编码单元的预测模式。

15. 发明申请

US20120051438A1 FILTER DESCRIPTION SIGNALING FOR MULTI-FILTER ADAPTIVE FILTERING 有权
标题翻译：滤波器自适应滤波的信号滤波
公开(公告)号：US20120051438A1
公开(公告)日：2012-03-01
申请号：US13178415
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： H04N7/26
CPC分类号： H04N19/85 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/42 , H04N19/46 , H04N19/70 , H04N19/82
摘要： Filtering is applied at an encoder, and filter information describing a set of filters is encoded in the bitstream to enable a decoder to identify the filtering that was applied at the encoder. The decoder receives encoded video data that includes the filter information, decodes the video data, and applies filtering based on the filtering information. The decoder applies the same filtering that was applied at the encoder. To potentially reduce the number of bits needed to reconstruct the set of filters and other filter information as well as to potentially improve decoder performance, filter description syntax describing the set of filters can be included in the bitstream. The filter description syntax may identify a number of filters in a set of filters, a maximum number of filters in a set of filters, and/or identify a shape of filters in a set of filters.
摘要翻译：在编码器处应用滤波，并且在比特流中编码描述一组滤波器的滤波器信息，以使解码器能够识别在编码器处应用的滤波。解码器接收包括滤波器信息的编码视频数据，解码视频数据，并根据滤波信息应用滤波。解码器应用与编码器相同的滤波。为了潜在地减少重建滤波器组和其它滤波器信息所需的位数以及潜在地提高解码器性能，描述滤波器集合的滤波器描述语法可以被包括在比特流中。过滤器描述语法可以标识一组过滤器中的多个过滤器，一组过滤器中的过滤器的最大数量和/或识别一组过滤器中的过滤器的形状。

16. 发明申请

US20120027089A1 CODING MOTION VECTORS IN VIDEO CODING 有权
标题翻译：编码运动矢量在视频编码
公开(公告)号：US20120027089A1
公开(公告)日：2012-02-02
申请号：US13179427
申请日：2011-07-08
申请人： Wei-Jung Chien , Marta Karczewicz , Peisong Chen , Xianglin Wang
发明人： Wei-Jung Chien , Marta Karczewicz , Peisong Chen , Xianglin Wang
IPC分类号： H04N7/32
CPC分类号： H04N19/52 , H04N19/109 , H04N19/114 , H04N19/115 , H04N19/13 , H04N19/159 , H04N19/162 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/573 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/91
摘要： This disclosure relates to techniques for reducing a cost of coding prediction information in video coding. Video blocks in a generalized P/B (GPB) frame are encoded using up to two motion vectors calculated from reference pictures in two separate reference picture lists that are identical. Video blocks of a GPB frame may, therefore, be encoded using a bidirectional prediction mode with a first motion vector from a reference picture in a first reference picture list and a second motion vector from the same or substantially similar reference picture in a second reference picture list. The techniques include jointly coding the first and second motion vectors for a video block of a GPB frame. The techniques include coding the first motion vector relative to a first motion predictor generated from a motion vector of a neighboring block, and coding the second motion vector relative to the first motion vector.
摘要翻译：本公开涉及用于降低视频编码中的预测信息编码成本的技术。广义P / B（GPB）帧中的视频块使用相同的两个单独参考图片列表中的参考图片计算的最多两个运动矢量进行编码。因此，可以使用具有来自第一参考图像列表中的参考图像的第一运动矢量和来自第二参考图像中相同或基本相似的参考图像的第二运动矢量的双向预测模式来编码GPB帧的视频块列表。这些技术包括联合编码GPB帧的视频块的第一和第二运动矢量。所述技术包括相对于从相邻块的运动矢量生成的第一运动预测器对第一运动矢量进行编码，以及相对于第一运动矢量对第二运动矢量进行编码。

17. 发明申请

US20110310976A1 Joint Coding of Partition Information in Video Coding 审中-公开
标题翻译：视频编码中分区信息的联合编码
公开(公告)号：US20110310976A1
公开(公告)日：2011-12-22
申请号：US13162466
申请日：2011-06-16
申请人： Xianglin Wang , Wei-Jung Chien , Marta Karczewicz
发明人： Xianglin Wang , Wei-Jung Chien , Marta Karczewicz
IPC分类号： H04N7/26
CPC分类号： H04N19/93 , H04N19/13 , H04N19/136 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/61 , H04N19/96
摘要： In one example, a video decoder is configured to receive a value for a coding unit of video data, wherein the coding unit is partitioned into a plurality of sub-coding units, determine whether the sub-coding units are partitioned into further sub-coding units based on the value, and decode the sub-coding units and the further sub-coding units. In another example, a video encoder is configured to partition a coding unit of video data into a plurality of sub-coding units, determine whether to partition the sub-coding units into further sub-coding units, and encode the coding unit to include a value that indicates whether the sub-coding units are partitioned into the further sub-coding units.
摘要翻译：在一个示例中，视频解码器被配置为接收视频数据的编码单元的值，其中编码单元被划分为多个子编码单元，确定子编码单元是否被划分为进一步的子编码基于该值的单位，并对子编码单元和其他子编码单元进行解码。在另一示例中，视频编码器被配置为将视频数据的编码单元划分为多个子编码单元，确定是否将子编码单元划分为进一步的子编码单元，并将编码单元编码为包括指示子编码单元是否被划分为其他子编码单元的值。

18. 发明申请

US20110206125A1 ADAPTIVE MOTION RESOLUTION FOR VIDEO CODING 有权
标题翻译：用于视频编码的自适应运动分辨率
公开(公告)号：US20110206125A1
公开(公告)日：2011-08-25
申请号：US12945170
申请日：2010-11-12
申请人： Wei-Jung Chien , Marta Karczewicz , Peisong Chen
发明人： Wei-Jung Chien , Marta Karczewicz , Peisong Chen
IPC分类号： H04N11/02
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，使用八分之一像素精度的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。

19. 发明授权

US09491469B2 Coding of last significant transform coefficient 有权
标题翻译：最后一次有效变换系数的编码
公开(公告)号：US09491469B2
公开(公告)日：2016-11-08
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 , H03M7/00 , H04N19/13 , H04N19/196 , H04N19/129 , H04N19/463 , H04N19/91 , H04N19/44
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。

20. 发明授权

US09219921B2 Mixed tap filters 有权
标题翻译：混合抽头过滤器
公开(公告)号：US09219921B2
公开(公告)日：2015-12-22
申请号：US13012583
申请日：2011-01-24
申请人： Rajan L. Joshi , Marta Karczewicz , Wei-Jung Chien
发明人： Rajan L. Joshi , Marta Karczewicz , Wei-Jung Chien
IPC分类号： H04N7/12 , H04N19/523 , H04N19/70 , H04N19/117 , H04N19/82
CPC分类号： H04N19/523 , H04N19/117 , H04N19/70 , H04N19/82
摘要： During the prediction stage of a video encoding and/or decoding process, a video coder can use relatively longer filters for certain motion vectors pointing to certain sub-pixel positions and relatively shorter filters for motion vectors pointing to other sub-pixel positions, where a longer filter generally refers to an interpolation filter with a greater number of filter coefficients, also called taps, while a shorter filter generally refers to an interpolation filter with fewer taps.
摘要翻译：在视频编码和/或解码处理的预测阶段期间，视频编码器可以针对指向某些子像素位置的特定运动矢量使用相对较长的滤波器，并且对于指向其它子像素位置的运动矢量可以使用相对较短的滤波器，其中更长的滤波器通常是指具有更多数量的滤波器系数的插值滤波器，也称为抽头，而较短的滤波器通常是指具有较少抽头的插值滤波器。

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