公开(公告)号：US20120147761A1

公开(公告)日：2012-06-14

申请号：US12964734

申请日：2010-12-09

申请人： Kai ZHANG ,  Henry YE ,  Cheng WANG

发明人： Kai ZHANG ,  Henry YE ,  Cheng WANG

IPC分类号： H04W24/00

CPC分类号： H04L25/0232 ,  H04L5/0048 ,  H04L25/0234

摘要： The present invention relates to a method of channel estimation comprising two major steps. The first step is the least-squared and minimum mean-square error (MMSE) estimations on the pilot resource elements to generate the channel response estimates at the predefined pilot locations. The second step of the channel estimation, which utilizes the results from the first step to compute the channel response estimates for the remaining resource elements, comprises the following three operations: (i) averaging of each pair of adjacent pilot resource elements in the frequency direction to obtain the channel response estimate of the resource element in the middle of those two pilot resource elements; (ii) MMSE interpolation in the time domain for all the sub-carriers containing pilot signals; and (iii) linear interpolation in the frequency direction for all the sub-carriers not containing any pilot signals.

摘要翻译： 本发明涉及包括两个主要步骤的信道估计方法。 第一步是在预定义的导频位置上产生信道响应估计的导频资源元素的最小均方误差和最小均方误差（MMSE）估计。 使用来自第一步骤的结果来计算剩余资源元素的信道响应估计的信道估计的第二步骤包括以下三个操作：（i）频率方向上每对相邻导频资源元素的平均值 以获得在这两个导频资源元素中间的资源元素的信道响应估计; （ii）包含导频信号的所有子载波在时域中的MMSE内插; 和（iii）对于不包含任何导频信号的所有子载波，在频率方向上的线性插值。

公开(公告)号：US20200236353A1

公开(公告)日：2020-07-23

申请号：US15758874

申请日：2016-09-13

申请人： Kai ZHANG ,  Jicheng AN ,  Han HUANG

发明人： Kai ZHANG ,  Jicheng AN ,  Han HUANG

IPC分类号： H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/86

摘要： A method and apparatus for adaptive de-blocking filter are disclosed. One or more parameters associated with a de-blocking filter are determined. De-blocking filter using the derived parameters are then applied to reconstructed blocks. Each set of parameters is used for each picture, slice, coding tree unit (CTU) or CU (coding unit). The parameters can be signalled in VPS (video parameter set), SPS (sequence parameter set), PPS (picture parameter set), slice header, CTU (coding tree unit) or CU (coding unit) of the video bitstream. The parameters correspond to one or more values used as thresholds, clipping boundaries, or both the thresholds and clipping boundaries for the de-blocking filter. In one embodiment, the parameters for the current picture are determined using a training process using a current coded picture a previous coded picture as training data.

公开(公告)号：US20170171558A1

公开(公告)日：2017-06-15

申请号：US15323809

申请日：2015-07-15

申请人： Han HUANG ,  Jicheng AN ,  Kai ZHANG ,  Xianguo ZHANG

发明人： Han HUANG ,  Jicheng AN ,  Kai ZHANG ,  Xianguo ZHANG

IPC分类号： H04N19/577 ,  H04N19/517

CPC分类号： H04N19/577 ,  H04N19/517 ,  H04N19/52 ,  H04N19/70

摘要： A method and apparatus of deriving a temporal derived motion vector in a second direction based on a given motion vector in a first direction for motion vector prediction are disclosed. According to the present invention, a given motion vector for a current block is determined, where the given motion vector points from the current block in a first direction. A reference motion vector associated with a first reference block in a first reference frame is identified. Then, based on the reference motion vector and the given motion vector, a temporal derived motion vector is derived. The temporal derived motion vector points from the current block to a second reference block in a second reference frame in a second direction different from the first direction. The temporal derived motion vector is then used as one predictor for encoding or decoding of the motion vector of the current block.

公开(公告)号：US20160182883A1

公开(公告)日：2016-06-23

申请号：US14891129

申请日：2014-07-02

申请人： Kai ZHANG ,  Jicheng AN ,  Jian-Liang LIN ,  Xianguo ZHANG

发明人： Kai ZHANG ,  Jicheng AN ,  Jian-Liang LIN ,  Xianguo ZHANG

IPC分类号： H04N13/00 ,  H04N19/44 ,  H04N19/52 ,  H04N19/136 ,  H04N19/176

CPC分类号： H04N13/161 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/52 ,  H04N19/597 ,  H04N2013/0081

摘要： A method and apparatus for three-dimensional video encoding and decoding using disparity derived depth prediction are disclosed. Embodiments of the present invention determine a disparity vector related to a collocated texture block in the dependent view and generate converted depth samples from the disparity vector. The generated converted depth samples are used as a predictor or Merge candidate for the current depth block. The Merge candidate corresponding to the converted depth samples can be placed in the merging candidate list at a location before TMVP (temporal motion vector predictor) merging candidate. The converted depth samples can be generated from the disparity vector according to a function of the disparity vector. Information associated with the function can be signaled explicitly to a decoder or derived implicitly by the decoder. One aspect of the present invention addresses simplified disparity to depth conversion, specifically division-free disparity-to-depth conversion.

摘要翻译： 公开了一种使用视差衍生深度预测进行三维视频编码和解码的方法和装置。 本发明的实施例确定从属视图中与并置纹理块有关的视差矢量，并从视差矢量生成转换的深度样本。 生成的转换深度样本用作当前深度块的预测或合并候选。 对应于转换的深度样本的合并候选可以在TMVP（时间运动矢量预测器）合并候选之前的位置放置在合并候选列表中。 可以根据视差向量的函数从视差向量生成转换的深度样本。 与该功能相关联的信息可以明确地发送给解码器或由解码器隐式地导出。 本发明的一个方面解决了对深度转换的简化视差，特别是无分辨率的视差到深度转换。

公开(公告)号：US20160065964A1

公开(公告)日：2016-03-03

申请号：US14785011

申请日：2014-06-24

申请人： Kai ZHANG ,  Yi-wen CHEN ,  Ji-an-Liang LIN ,  Jicheng AN ,  Xianguo ZHANG

发明人： Kai ZHANG ,  Yi-Wen CHEN ,  Jian-Liang LIN ,  Jicheng AN ,  Xianguo ZHANG

IPC分类号： H04N19/13 ,  H04N19/96 ,  H04N19/597 ,  H04N19/157 ,  H04N19/176

CPC分类号： H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/597 ,  H04N19/91 ,  H04N19/96

摘要： A method for reducing the storage requirement or complexity of context-based coding in three-dimensional or multi-view video encoding and decoding is disclosed. The system selects the context based on selected information associated with one or more neighboring blocks of the current block conditionally depending on whether the one or more neighboring blocks are available. The syntax element is then encoded or decoded using context-based coding according to the context selection. The syntax element to be coded may correspond to an IC (illumination compensation) flag or an ARP (advanced residual prediction) flag. In another example, one or more syntax elements for coding a current depth block using DMM (Depth Map Model) are encoded or decoded using context-based coding, where the context-based coding selects a by-pass mode for at least one selected syntax element.

摘要翻译： 公开了一种用于减少三维或多视图视频编码和解码中的基于上下文的编码的存储要求或复杂性的方法。 该系统有条件地根据一个或多个相邻块是否可用，基于与当前块的一个或多个相邻块相关联的所选择的信息来选择上下文。 然后根据上下文选择使用基于上下文的编码对语法元素进行编码或解码。 要编码的语法元素可以对应于IC（照明补偿）标志或ARP（高级残差预测）标志。 在另一示例中，使用DMM（深度图模型）对当前深度块进行编码的一个或多个语法元素使用基于上下文的编码进行编码或解码，其中基于上下文的编码为至少一个选择的语法选择旁路模式 元件。

公开(公告)号：US20160029045A1

公开(公告)日：2016-01-28

申请号：US14655973

申请日：2014-04-10

申请人： Jicheng AN ,  Kai ZHANG ,  Jian-Liang LIN

发明人： Jicheng AN ,  Kai ZHANG ,  Jian-Liang LIN

IPC分类号： H04N19/597 ,  H04N13/00 ,  H04N19/176

CPC分类号： H04N19/597 ,  H04N13/00 ,  H04N13/161 ,  H04N19/176 ,  H04N21/21805

摘要： A method and apparatus of three-dimensional/multi-view coding using aligned reference information are disclosed. The present system aligns the reference information associated with the reference view of the derived DV with the reference information associated with a selected reference view by modifying the selected reference view or by modifying the derived DV or a converted DV derived from depth block pointed by the derived DV. The DV can be derived using the Neighboring Block Disparity Vector (NBDV) process. When the reference view of the derived DV is different from the selected reference view, the system scales the derived DV or changes the converted DV to refer to the selected reference view. The system may also set the selected reference view to the reference view of the derived DV.

摘要翻译： 公开了使用对齐参考信息的三维/多视图编码的方法和装置。 本系统通过修改所选择的参考视图或通过修改导出的DV或从导出的指示的指示的深度块导出的转换的DV来将与导出的DV的参考视图相关联的参考信息与与所选择的参考视图相关联的参考信息对齐 DV。 DV可以使用相邻块视差向量（NBDV）进程导出。 当导出的DV的参考视图与所选择的参考视图不同时，系统缩放导出的DV或改变转换的DV以参考所选择的参考视图。 系统还可以将所选择的参考视图设置为导出的DV的参考视图。

公开(公告)号：US20120278456A1

公开(公告)日：2012-11-01

申请号：US13542951

申请日：2012-07-06

申请人： Yaorong YE ,  Yuping LI ,  Lan ZOU ,  Kai ZHANG

发明人： Yaorong YE ,  Yuping LI ,  Lan ZOU ,  Kai ZHANG

IPC分类号： G06F15/177

CPC分类号： H04L41/0843 ,  H04L41/0803 ,  H04L67/34 ,  H04W4/50

摘要： Embodiments of the present invention provide a method and an apparatus for data configuration. The data configuration method includes: before a network element accesses a network, invoking, by a management unit, a first interface between the management unit and a managed unit to request the managed unit to download configuration data of the network element from a position designated by the management unit; and invoking, by the management unit, a second interface between the management unit and the managed unit to request the managed unit to generate a full configuration data file of the network element according to the configuration data. Through the method and the apparatus for data configuration provided in the embodiments of the present invention, automatic download of the configuration data of the network element may be implemented, and human cost of deployment is reduced.

摘要翻译： 本发明的实施例提供了一种用于数据配置的方法和装置。 数据配置方法包括：在网元访问网络之前，由管理单元调用管理单元和被管理单元之间的第一接口，以请求被管理单元从由网络单元指定的位置下载网元的配置数据 管理单位; 以及由所述管理单元调用所述管理单元和所述被管理单元之间的第二接口，以请求所述被管理单元根据所述配置数据生成所述网元的完整配置数据文件。 通过本发明的实施例中提供的数据配置的方法和装置，可以实现网元的配置数据的自动下载，从而降低了人员的部署成本。

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：US20160134857A1

公开(公告)日：2016-05-12

申请号：US14891822

申请日：2014-07-10

申请人： Jicheng AN ,  Kai ZHANG ,  Jian-Liang LIN

发明人： Jicheng AN ,  Kai ZHANG ,  Jian-Liang LIN

IPC分类号： H04N13/00 ,  H04N19/139 ,  H04N19/44 ,  H04N19/176 ,  H04N19/52

CPC分类号： H04N13/161 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/597

摘要： A method for a three-dimensional encoding or decoding system incorporating sub-block based inter-view motion prediction is disclosed. The system utilizes motion or disparity parameters associated with reference sub-blocks in a reference picture of a reference view corresponding to the texture sub-PUs split from a current texture PU (prediction unit) to predict the motion or disparity parameters of the current texture PU. Candidate motion or disparity parameters for the current texture PU may comprise candidate motion or disparity parameters derived for all texture sub-PUs from splitting the current texture PU. The candidate motion or disparity parameters for the current texture PU can be used as a sub-block-based inter-view Merge candidate for the current texture PU in Merge mode. The sub-block-based inter-view Merge candidate can be inserted into a first position of a candidate list.

摘要翻译： 公开了一种包含基于子块的视角间运动预测的三维编码或解码系统的方法。 该系统利用与从当前纹理PU（预测单元）分割的纹理子PU对应的参考视图的参考图像中的参考子块相关的运动或视差参数来预测当前纹理PU的运动或视差参数 。 用于当前纹理PU的候选运动或视差参数可以包括从分割当前纹理PU而为所有纹理子PU导出的候选运动或视差参数。 用于当前纹理PU的候选运动或视差参数可以用作合并模式中当前纹理PU的基于子块的视角合并候选。 可以将基于子块的视角合并候选者插入候选列表的第一位置。