公开(公告)号：US20130070855A1

公开(公告)日：2013-03-21

申请号：US13614018

申请日：2012-09-13

申请人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

发明人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

IPC分类号： H04N7/32

CPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/52

摘要： In one example, a device for coding video data includes a video coder (such as a video decoder or a video encoder) configured to code motion information for a current block of video data using a hybrid motion information coding mode, wherein to code the motion information, the video coder is configured to code a merge index syntax element of the motion information in a manner substantially conforming to a merge mode, and code at least one additional syntax element of the motion information in a manner substantially conforming to an advanced motion vector prediction (AMVP) mode, and wherein the video coder is configured to code the current block using the motion information. The hybrid mode may comprise a partial merge mode or a partial AMVP mode.

摘要翻译： 在一个示例中，用于编码视频数据的设备包括被配置为使用混合运动信息编码模式对视频数据的当前块的运动信息进行编码的视频编码器（诸如视频解码器或视频编码器），其中对运动进行编码 信息，视频编码器被配置为以基本上符合合并模式的方式对运动信息的合并索引语法元素进行编码，并且以基本上符合高级运动矢量的方式对运动信息的至少一个附加语法元素进行编码 预测（AMVP）模式，并且其中视频编码器被配置为使用运动信息对当前块进行编码。 混合模式可以包括部分合并模式或部分AMVP模式。

公开(公告)号：US20130070854A1

公开(公告)日：2013-03-21

申请号：US13585423

申请日：2012-08-14

申请人： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

发明人： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

IPC分类号： H04N7/34

CPC分类号： H04N19/436 ,  H04N19/52

摘要： For each prediction unit (PU) belonging to a coding unit (CU), a video coder generates a candidate list. The video coder generates the candidate list such that each candidate in the candidate list that is generated based on motion information of at least one other PU is generated without using motion information of any of the PUs belonging to the CU. After generating the candidate list for a PU, the video coder generates a predictive video block for the PU based on one or more reference blocks indicated by motion information of the PU. The motion information of the PU is determinable based on motion information indicated by a selected candidate in the candidate list for the PU.

摘要翻译： 对于属于编码单元（CU）的每个预测单元（PU），视频编码器生成候选列表。 视频编码器生成候选列表，使得在不使用属于CU的任何PU的运动信息的情况下生成基于至少一个其他PU的运动信息生成的候选列表中的每个候选。 在生成PU的候选列表之后，视频编码器基于由PU的运动信息指示的一个或多个参考块来生成PU的预测视频块。 PU的运动信息可以基于PU的候选列表中由选择的候选者指示的运动信息来确定。

公开(公告)号：US20130070848A1

公开(公告)日：2013-03-21

申请号：US13613382

申请日：2012-09-13

申请人： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

发明人： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

IPC分类号： H04N7/32

CPC分类号： H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/91

摘要： A video coder, such as a video encoder or a video decoder, identifies an entropy coding context in a set of one or more entropy coding contexts. The video coder identifies the entropy coding context without reference to a neighboring coding unit that is above a current coding unit in a current picture. The video coder then entropy codes a short distance intra-prediction (SDIP) syntax element of a coding unit (CU) using the identified entropy coding context. The SDIP syntax element at least partially defines a mode by which the CU is partitioned into a set of one or more transform units.

摘要翻译： 诸如视频编码器或视频解码器的视频编码器识别一组或多个熵编码上下文中的熵编码上下文。 视频编码器不参照当前图像中当前编码单元之上的相邻编码单元来识别熵编码上下文。 视频编码器然后使用所识别的熵编码上下文对编码单元（CU）的短距离帧内预测（SDIP）语法元素进行熵编码。 SDIP语法元素至少部分地定义了CU被分割成一组一个或多个变换单元的模式。

公开(公告)号：US20120320968A1

公开(公告)日：2012-12-20

申请号：US13487914

申请日：2012-06-04

申请人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

发明人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

IPC分类号： H04N7/32 ,  H04N7/26

CPC分类号： H04N19/40 ,  H04N19/52

摘要： A unified candidate block set for both adaptive motion vector prediction (AMVP) mode and merge mode for use in inter-prediction is proposed. In general, the same candidate block set is used regardless of which motion vector prediction mode (e.g., merge mode or AMVP mode) is used. In other examples of this disclosure, one candidate block in a set of candidate blocks is designated as an additional candidate block. The additional candidate block is used if one of the other candidate blocks is unavailable. Also, the disclosure proposes a checking pattern where the left candidate block is checked before the below left candidate block. Also, the above candidate block is checked before the right above candidate block.

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。

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。

公开(公告)号：US20100142849A1

公开(公告)日：2010-06-10

申请号：US11799230

申请日：2007-04-30

申请人： Xianglin Wang ,  Yeong-Taeg Kim

发明人： Xianglin Wang ,  Yeong-Taeg Kim

IPC分类号： G06K9/40

CPC分类号： G06T5/004 ,  G06T5/20 ,  H04N1/4092

摘要： A general shoot suppression method and system for image detail enhancement that provides good suppression in shoot areas while preserving the enhancement (with less or no suppression) in non-shoot areas. Asymmetry checker checks the luminance variation of pixels around the current pixel within a filtering range. Based on the checking result, different patterns of luminance variation in the neighborhood of the current pixel are categorized. Higher suppression is applied to those patterns that are more likely to cause overshoot/undershoot. Optionally, suppression is further associated with the intensity of detail signal at each pixel position. An intensity checker checks the magnitude of the detail signal. If the detail signal is weak at a current pixel position, it is unlikely that obvious shoot artifacts appear at that position, and little or no suppression is applied. Such a method and system provide shoot suppression only in shoot areas while maintaining good enhancement in non-shoot areas.

公开(公告)号：US07508997B2

公开(公告)日：2009-03-24

申请号：US10840493

申请日：2004-05-06

申请人： Xianglin Wang ,  Yeong-Taeg Kim

发明人： Xianglin Wang ,  Yeong-Taeg Kim

IPC分类号： G06K9/32

CPC分类号： G06T3/403 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/20192 ,  H04N5/208 ,  H04N7/0135 ,  H04N7/0142

摘要： A method and apparatus for video sample interpolation with edge sharpening, whereby edge sharpness can be essentially preserved and/or enhanced in the interpolated image. Image interpolation for an original two dimensional image is conducted along the horizontal and vertical directions separately using a 1D digital filter. In interpolating a new sample in the image, the digital filter is first used to obtain a temporary interpolation value for the new sample. Then, an appropriate amount of edge enhancement is calculated for the new sample location. The enhancement value is combined with the temporary interpolation value to result in a final interpolation value for the new sample.

摘要翻译： 一种用于边缘锐化的视频样本插值的方法和装置，由此在内插图像中可以基本上保留和/或增强边缘锐度。 使用1D数字滤波器，分别沿水平和垂直方向进行原始二维图像的图像插值。 在图像内插新样本时，首先使用数字滤波器获得新样本的临时内插值。 然后，为新的样本位置计算适当量的边缘增强。 增强值与临时内插值组合以得到新样本的最终内插值。

公开(公告)号：US20080225955A1

公开(公告)日：2008-09-18

申请号：US12047225

申请日：2008-03-12

申请人： Justin Ridge ,  Xianglin Wang

发明人： Justin Ridge ,  Xianglin Wang

IPC分类号： H04N7/26

CPC分类号： H04N21/4621 ,  H04N19/129 ,  H04N19/18 ,  H04N19/29 ,  H04N19/33 ,  H04N19/48 ,  H04N19/64 ,  H04N19/94

摘要： A video coding method comprises dividing a coefficient vector into two or more sub-vectors, each sub-vector having a length less than or equal to a length of the coefficient vector, indicating a size of each sub-vector and a position of each sub-vector within the coefficient vector, and forming a block corresponding to each sub-vector

摘要翻译： 一种视频编码方法，包括将系数向量分成两个或多个子向量，每个子向量的长度小于或等于系数向量的长度，表示每个子向量的大小和每个子向量的位置 - 向量，并形成与每个子向量相对应的块

公开(公告)号：US20080225952A1

公开(公告)日：2008-09-18

申请号：US12048160

申请日：2008-03-13

申请人： Xianglin Wang ,  Justin Ridge

发明人： Xianglin Wang ,  Justin Ridge

IPC分类号： H04N7/26

CPC分类号： H04N19/33 ,  H04N19/105 ,  H04N19/139 ,  H04N19/187 ,  H04N19/61

摘要： A system and method for providing improved residual prediction for spatial scalability in video coding. In order to prevent visual artifacts in residual prediction in extended spatial scalability (ESS), each enhancement layer macroblock is checked to determine if the macroblock satisfies a number of conditions. If the conditions are met for an enhancement layer macroblock, then it is likely that visual artifacts will be introduced if applying residual prediction on the macroblock. Once such locations are identified, various mechanisms may be used to avoid or remove the visual artifacts.

摘要翻译： 一种用于为视频编码中的空间可扩展性提供改进的残差预测的系统和方法。 为了防止扩展空间可扩展性（ESS）中的残差预测中的视觉伪影，检查每个增强层宏块以确定宏块是否满足多个条件。 如果对于增强层宏块满足条件，则如果在宏块上应用残差预测，则可能会引入视觉伪像。 一旦这样的位置被识别，可以使用各种机制来避免或去除视觉伪像。