公开(公告)号：US20220094957A1

公开(公告)日：2022-03-24

申请号：US17494486

申请日：2021-10-05

申请人： Guichun LI ,  Xiang LI ,  Xiaozhong XU ,  Shan LIU

发明人： Guichun LI ,  Xiang LI ,  Xiaozhong XU ,  Shan LIU

IPC分类号： H04N19/44 ,  H04N19/137 ,  H04N19/46 ,  H04N19/176 ,  H04N19/105 ,  H04N19/159 ,  H04N19/186 ,  H04N19/132 ,  H04N19/513 ,  H04N19/51 ,  H04N19/109

摘要： Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. In some embodiments, the processing circuitry decodes prediction information of a current block in a current picture from a coded video bitstream. The prediction information is indicative of an inter prediction mode that signals a value associated with a motion vector difference in the coded video bitstream. The processing circuitry determines a precision for the motion vector difference based on a size of the current block, and converts the signaled value in the coded video bitstream to the motion vector difference based on the determined precision. Then, the processing circuitry determines a motion vector based on a prediction of the motion vector and the motion vector difference, and reconstructs at least a sample of the current block according to the motion vector.

公开(公告)号：US20210031880A1

公开(公告)日：2021-02-04

申请号：US16529219

申请日：2019-08-01

申请人： WEN-KUEI LIU ,  CHAO-HSUAN LIU ,  YU-CHUN LIU ,  YI-SHAN LIU

发明人： WEN-KUEI LIU ,  CHAO-HSUAN LIU ,  YU-CHUN LIU ,  YI-SHAN LIU

IPC分类号： B62M11/06 ,  B62M9/124

摘要： A transmission device for a bicycle includes a housing, a mandrel, an assembling member, a transmission assembly, a derailleur assembly and a clutch assembly. The mandrel is rotatably disposed on the housing and extends along an axial direction. The assembling member has a driving gear. The transmission assembly is rotatably disposed on the housing and engaged with the driving gear. The derailleur assembly includes a first derailleur gear and a second derailleur gear. The transmission assembly is engaged with the first derailleur gear and the second derailleur gear. The clutch assembly includes a clutch member.

公开(公告)号：US09788019B2

公开(公告)日：2017-10-10

申请号：US13156552

申请日：2011-06-09

申请人： Shan Liu ,  Zhi Zhou ,  Shaw-Min Lei

发明人： Shan Liu ,  Zhi Zhou ,  Shaw-Min Lei

IPC分类号： H04N11/02 ,  H04N19/96 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119

CPC分类号： H04N19/96 ,  H04N19/119 ,  H04N19/176 ,  H04N19/70

摘要： Transform unit (TU) partition method and apparatus depending on the coding unit (CU) partition and prediction unit (PU) partition are disclosed. In one embodiment, the maximum TU size is restricted to the minimum of PU width and height, except for a 2N×2N coding unit with the 2N×2N partition type. In another embodiment, the maximum TU size equals to maximum of PU width and height, and the minimum TU size equals to minimum of the PU width and height, except for a 2N×2N coding unit with the 2N×2N partition type. In yet another embodiment, the maximum TU size is equal to the maximum of PU width and height, and the minimum TU size is equal to the minimum of PU width and height except for a 2N×2N CU with 2N×2N partition type.

公开(公告)号：US20170048552A1

公开(公告)日：2017-02-16

申请号：US15305834

申请日：2015-05-05

申请人： Jicheng AN ,  Kai ZHANG ,  Jing YE ,  Shan LIU

发明人： Jicheng AN ,  Kai ZHANG ,  Jing YE ,  Shan LIU

IPC分类号： H04N19/60 ,  H04N19/46 ,  H04N19/96

CPC分类号： H04N19/60 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/96

摘要： A method and associated apparatus for determining residue transform tree for color components in a video sequence are provided. The method includes the steps of: determining an individual transform depth increase for each color component; and determining a transform tree for each color component according to the individual transform depth increase associated with each color components.

摘要翻译： 提供了一种用于确定视频序列中的颜色分量的残差变换树的方法和相关联的装置。 该方法包括以下步骤：确定每个颜色分量的单个变换深度增加; 以及根据与每个颜色分量相关联的各个变换深度增加来确定每个颜色分量的变换树。

公开(公告)号：US20160330474A1

公开(公告)日：2016-11-10

申请号：US15107916

申请日：2015-02-17

申请人： Shan LIU ,  Xiaozhong XU

发明人： Shan LIU ,  Xiaozhong XU

IPC分类号： H04N19/56 ,  H04N19/523 ,  H04N19/132

摘要： A method of video coding including an IntraBC (Intra Block Copy) mode is disclosed. In one embodiment, the reference picture list includes an IntraBC reference picture corresponding to the current and partial reconstructed picture. If the IntraBC mode is selected for a current coding unit, the current coding unit is coded using an IntraBC predictor derived based on the IntraBC reference picture selected from a reference picture list. After the current coding unit is coded, the reconstructed current block is generated and used for updating the IntraBC reference picture. In another embodiment, a motion vector predictor (MVP) or Merge/Skip candidates are determined based on motion vectors of neighboring blocks. The current motion vector associated with the IntraBC mode is coded based on the MVP or Merge/Skip candidates.

摘要翻译： 公开了一种包括IntraBC（块内复制）模式的视频编码方法。 在一个实施例中，参考图片列表包括对应于当前和部分重构图片的IntraBC参考图片。 如果为当前编码单元选择了IntraBC模式，则使用基于从参考图片列表中选择的IntraBC参考图片导出的IntraBC预测器对当前编码单元进行编码。 在编码当前编码单元之后，生成重建的当前块并用于更新IntraBC参考图片。 在另一实施例中，基于相邻块的运动矢量确定运动矢量预测器（MVP）或合并/跳跃候选。 与IntraBC模式相关联的当前运动矢量基于MVP或合并/跳过候选进行编码。

公开(公告)号：US09049452B2

公开(公告)日：2015-06-02

申请号：US13272221

申请日：2011-10-13

申请人： Shan Liu ,  Yu-Wen Huang ,  Shaw-Min Lei

发明人： Shan Liu ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC分类号： H04B1/66 ,  H04N19/463 ,  H04N19/176 ,  H04N19/119 ,  H04N19/147 ,  H04N19/96 ,  H04N7/26 ,  H04N19/159

CPC分类号： H04N19/51 ,  H04N19/119 ,  H04N19/13 ,  H04N19/147 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/647 ,  H04N19/91 ,  H04N19/96

摘要： In HEVC (High Efficiency Video Coding), a 2N×2N coding unit can be partitioned into various partition types hierarchically. The coding system uses a criterion to determine the best partition, where RD-rate is often used as the criterion. N×N partition at level k becomes redundant if 2N×2N at level k+1 will be evaluated. In order to eliminate the above redundancy, the allowable partition sizes are constrained according to a method previously disclosed. In the current invention, the complexity is further reduced. According to one embodiment, N×N partition is not allowed for any INTER mode regardless of the coding unit size. Furthermore, flexibility is provided so that either the method and apparatus with further complexity reduction can be selected or an alternative method and apparatus can be selected. Syntaxes to support embodiments according to the present invention are also disclosed.

摘要翻译： 在HEVC（高效率视频编码）中，2N×2N个编码单元可以分层划分成各种分区类型。 编码系统使用标准来确定最佳分区，其中通常使用RD率作为标准。 如果在级别k + 1处的2N×2N将被评估，则级别k的N×N分区变得冗余。 为了消除上述冗余，根据先前公开的方法来限制允许的分区大小。 在本发明中，复杂性进一步降低。 根据一个实施例，无论编码单元大小如何，对于任何INTER模式，不允许N×N分区。 此外，提供灵活性，使得可以选择具有进一步复杂度降低的方法和装置，或者可以选择替代方法和装置。 还公开了用于支持根据本发明的实施例的语法。

公开(公告)号：US09031316B2

公开(公告)日：2015-05-12

申请号：US13612893

申请日：2012-09-13

申请人： Tao Zhang ,  Shan Liu

发明人： Tao Zhang ,  Shan Liu

IPC分类号： G06K9/00 ,  H04N13/00

CPC分类号： H04N13/106 ,  H04N2013/0081 ,  H04N2213/007

摘要： A method for identifying an actual view order of image frames of a stereo image pair includes at least the following steps: receiving the image frames; obtaining image characteristics by analyzing the image frames according to an assumed view order; and identifying the actual view order by checking the image characteristics. In addition, a machine readable medium storing a program code is provided. The program causes a processor to perform at least the following steps for identifying an actual view order of image frames of a stereo image pair when executed by the processor: receiving the image frames; obtaining image characteristics by analyzing the image frames according to an assumed view order; and identifying the actual view order by checking the image characteristics.

摘要翻译： 用于识别立体图像对的图像帧的实际视图顺序的方法至少包括以下步骤：接收图像帧; 通过根据假定的视图顺序分析图像帧来获得图像特征; 并通过检查图像特征来识别实际的视图顺序。 此外，提供了存储程序代码的机器可读介质。 该程序使得处理器至少执行以下步骤，以便在由处理器执行时识别立体图像对的图像帧的实际视图顺序：接收图像帧; 通过根据假定的视图顺序分析图像帧来获得图像特征; 并通过检查图像特征来识别实际的视图顺序。

公开(公告)号：US20140177728A1

公开(公告)日：2014-06-26

申请号：US14234505

申请日：2012-08-21

申请人： Ximin Zhang ,  Shan Liu

发明人： Ximin Zhang ,  Shan Liu

IPC分类号： H04N19/122 ,  H04N19/60 ,  H04N19/18

CPC分类号： H04N19/126 ,  H04N19/122 ,  H04N19/176 ,  H04N19/18 ,  H04N19/197 ,  H04N19/198 ,  H04N19/60 ,  H04N19/70 ,  H04N19/80

摘要： A method and system for processing transform blocks according to quantization matrices in a video coding system are disclosed. Embodiments of the present invention derive one or more derived quantization matrices from one or more initial quantization matrices or from one previously derived quantization matrix. In one embodiment, the initial quantization matrices include a 4×4 and 8×8 quantization matrices, which can be either default or user-defined. All quantization matrices larger than 8×8 can be derived from the 4×4 and 8×8 initial quantization matrices. Non-square quantization matrices can be derived from at least one initial square quantization matrix or at least one derived square quantization matrix. Individual initial quantization matrices may be used to derive respective larger quantization matrices. Furthermore, the individual initial quantization matrices may be derived from larger quantization matrices designed for corresponding transform sizes. Syntax design to enable the quantization matrix representation is also disclosed.

摘要翻译： 公开了一种根据视频编码系统中的量化矩阵来处理变换块的方法和系统。 本发明的实施例从一个或多个初始量化矩阵或从一个先前导出的量化矩阵导出一个或多个导出的量化矩阵。 在一个实施例中，初始量化矩阵包括4×4和8×8个量化矩阵，其可以是默认的或用户定义的。 大于8×8的所有量化矩阵可以从4×4和8×8个初始量化矩阵导出。 可以从至少一个初始平方量化矩阵或至少一个导出的平方量化矩阵导出非平方量化矩阵。 各个初始量化矩阵可以用于导出相应较大的量化矩阵。 此外，各个初始量化矩阵可以从为相应的变换大小设计的较大的量化矩阵导出。 还公开了启用量化矩阵表示的语法设计。

公开(公告)号：US20140140404A1

公开(公告)日：2014-05-22

申请号：US14234152

申请日：2012-07-26

申请人： Shan Liu ,  Ximin Zhang ,  Shaw-Min Lei

发明人： Shan Liu ,  Ximin Zhang ,  Shaw-Min Lei

IPC分类号： H04N19/105 ,  H04N19/182 ,  H04N19/136

CPC分类号： H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/122 ,  H04N19/132 ,  H04N19/136 ,  H04N19/147 ,  H04N19/176 ,  H04N19/182 ,  H04N19/33 ,  H04N19/593 ,  H04N19/70

摘要： A method and apparatus for Intra prediction of a block based on neighboring pixels around the block are disclosed. Embodiments according to the present invention use square blocks as well as non-square blocks for Intra prediction. For a 2N×2N Luma CU (coding unit), the CU can be partitioned into 2N×N, N×2N, 2N×2N or N×N PUs. The 2N×N and N×2N PUs can be further processed by either square transforms only or both non-square and square transforms. In one embodiment, the 2N×N PU or the N×2N PU is processed as two N×N TUs (transform units) and each of the N×N TU is further split into smaller N×N TUs based on quad-tree split. In another embodiment, the 2N×N and N×2N PUs are processed as two 2N×0.5N and 0.5N×2N TUs respectively.

摘要翻译： 公开了一种基于块周围的相邻像素进行帧内预测的方法和装置。 根据本发明的实施例使用平方块以及用于帧内预测的非方块。 对于2N×2N亮度CU（编码单元），CU可以划分为2N×N，N×2N，2N×2N或N×N个PU。 2N×N和N×2N个PU可以通过正方形变换或非正方形和正方形变换进一步处理。 在一个实施例中，2N×N PU或N×2N PU被处理为两个N×N个TU（变换单元），并且N×N TU中的每一个进一步被分割成基于四叉树分割的较小的N×N个TU 。 在另一个实施例中，2N×N和N×2N个PU分别被处理为两个2N×0.5N和0.5N×2N个TU。

公开(公告)号：US08512485B2

公开(公告)日：2013-08-20

申请号：US12983413

申请日：2011-01-03

申请人： Ganjiang Feng ,  George A. Goller ,  Raymond Joseph Stonitsch ,  Jason R. Parolini ,  Shan Liu

发明人： Ganjiang Feng ,  George A. Goller ,  Raymond Joseph Stonitsch ,  Jason R. Parolini ,  Shan Liu

IPC分类号： C22C30/00

CPC分类号： C22C38/42 ,  C21D2211/004 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

摘要： A alloy and a process of forming a alloy are disclosed. The alloy has a predetermined grain boundary morphology. The alloy includes by weight greater than about 0.06 percent carbon, up to about 0.0015 percent sulfur, less than about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and about 3.3 percent niobium, between about 1.4 percent and about 2 percent titanium, up to about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to about 0.006 percent nitrogen, and greater than about 0.5 percent molybdenum.

摘要翻译： 公开了一种合金和一种形成合金的工艺。 该合金具有预定的晶界形态。 该合金包括重量大于约0.06％的碳，至多约0.0015％的硫，小于约16％的铬，约39％至约44％的镍，约2.5％至约3.3％的铌，约1.4％ 和约2％的钛，至多约0.5％的铝，至多约0.006％的硼，至多约0.3％的铜，至多约0.006％的氮和大于约0.5％的钼。