公开(公告)号：JP2012050153A

公开(公告)日：2012-03-08

申请号：JP2011270496

申请日：2011-12-09

Applicant: Nokia Corp ,  ノキア コーポレイション

Inventor： WANG XIANGLIN ,  BAO ILIAN ,  CARTIEWITZ MALTA ,  RIDGE JUSTIN

IPC: H04N7/32

CPC classification number: H04N19/615 ,  H04N19/107 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/46 ,  H04N19/48 ,  H04N19/61 ,  H04N19/63

Abstract: PROBLEM TO BE SOLVED: To reduce redundancy present between SVC layers.SOLUTION: The present invention improves residue prediction by using MI even when the base layer MB is encoded in intra mode such as copying intra 4×4 mode of one 4×4 block in the base layer to multiple neighboring 4×4 blocks in the enhancement layer if the base layer resolution is lower than the enhancement layer resolution, using the intra 4×4 mode as intra 8×8 mode if the base layer resolution is lower than the enhancement layer resolution and the base layer resolution is half of the enhancement layer resolution in both dimensions, carrying out direct calculation of the base layer prediction residue used in RP, clipping of prediction residue for reducing memory requirement and tunneling of prediction residue in BLTP mode; and carrying out conditional coding of RP flag to save flag bits and reduce implementation complexity.

Abstract translation: 要解决的问题：减少SVC层之间的冗余。 解决方案：本发明通过使用MI来改进使用MI的残差预测，即使基层MB以帧模式编码，例如将基层中的一个4×4块的4×4模式复制到多个相邻的4×4块 如果基层分辨率低于增强层分辨率，则在增强层中，如果基层分辨率低于增强层分辨率，则使用帧内4×4模式作为帧内8×8模式，并且基本层分辨率为 增强层分辨率，实现了在RP中使用的基本层预测残差的直接计算，用于减少BLTP模式中预测残差的预测残差和预测残差的隧道化; 并执行RP标志的条件编码来保存标志位并降低实现复杂度。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：EP1908292A4

公开(公告)日：2011-04-27

申请号：EP06765611

申请日：2006-06-29

Applicant: NOKIA CORP

Inventor： WANG XIANGLIN ,  KARCZEWICZ MARTA ,  BAO YILIANG ,  RIDGE JUSTIN

IPC: H04N7/26

CPC classification number: H04N19/615 ,  H04N19/117 ,  H04N19/119 ,  H04N19/13 ,  H04N19/137 ,  H04N19/176 ,  H04N19/513 ,  H04N19/521 ,  H04N19/523 ,  H04N19/61 ,  H04N19/63 ,  H04N19/82

公开(公告)号：EP2106666A4

公开(公告)日：2013-06-26

申请号：EP08700203

申请日：2008-01-05

Applicant: NOKIA CORP

Inventor： WANG XIANGLIN ,  RIDGE JUSTIN

IPC: H04N7/26 ,  H04N7/36 ,  H04N7/46 ,  H04N7/50

CPC classification number: H04N19/59 ,  H04N19/103 ,  H04N19/105 ,  H04N19/109 ,  H04N19/176 ,  H04N19/33 ,  H04N19/51 ,  H04N19/513

Abstract: An improved system and method for providing improved inter-layer prediction for extended spatial scalability in video coding, as well as improving inter-layer prediction for motion vectors in the case of extended spatial scalability. In various embodiments, for the prediction of macroblock mode, the actual reference frame index and motion vectors from the base layer are used in determining if two blocks should be merged. Additionally, multiple representative pixels in a 4×4 block can be used to represent each 4×4 block in a virtual base layer macroblock. The partition and motion vector information for the relevant block in the virtual base layer macroblock can be derived from all of the partition information and motion vectors of those 4×4 blocks.

公开(公告)号：WO2008110999A3

公开(公告)日：2008-11-20

申请号：PCT/IB2008050905

申请日：2008-03-12

Applicant: NOKIA CORP ,  RIDGE JUSTIN ,  WANG XIANGLIN

Inventor： RIDGE JUSTIN ,  WANG XIANGLIN

IPC: H04N7/26

CPC classification number: H04N21/4621 ,  H04N19/129 ,  H04N19/18 ,  H04N19/29 ,  H04N19/33 ,  H04N19/48 ,  H04N19/64 ,  H04N19/94

Abstract: 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.

Abstract translation: 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：WO2008007339A2

公开(公告)日：2008-01-17

申请号：PCT/IB2007052754

申请日：2007-07-10

Applicant: NOKIA CORP ,  RIDGE JUSTIN ,  WANG XIANGLIN

Inventor： RIDGE JUSTIN ,  WANG XIANGLIN

IPC: H04N7/26 ,  H04N7/30 ,  H04N7/50

CPC classification number: H04N19/93 ,  H04N19/13 ,  H04N19/61

Abstract: A system and method for improved video encoding and decoding. The present invention addresses issues that arise in the H.264/ AVC standard involving "high magnitude coefficients." According to various embodiments of the present invention, an encoded end of block (EOB) symbol provides information comprising at least one of the maximum magnitude of values in a block, the number of values in the block with a magnitude greater than 1, and a variable length code (VLC) index indicating a VLC to be used in decoding precise magnitudes for non-zero values in the block. By including this information in the EOB symbol, improved coding efficiency is achieved.

Abstract translation: 一种用于改善视频编码和解码的系统和方法。 本发明解决了涉及“高幅度系数”的H.264 / AVC标准中出现的问题。 根据本发明的各种实施例，块（EOB）符号的编码结束提供包括块中值的最大量值，块中具有大于1的值的数目和值中的至少一个的信息 可变长度码（VLC）索引，指示要用于解码块中的非零值的精确量值的VLC。 通过将这些信息包含在EOB符号中，可以提高编码效率。

公开(公告)号：WO2006109135A3

公开(公告)日：2007-01-25

申请号：PCT/IB2006000834

申请日：2006-04-11

Applicant: NOKIA CORP ,  NOKIA INC ,  WANG XIANGLIN ,  KARCZEWICZ MARTA ,  BAO YILIANG ,  RIDGE JUSTIN

Inventor： WANG XIANGLIN ,  KARCZEWICZ MARTA ,  BAO YILIANG ,  RIDGE JUSTIN

IPC: H04N7/26

CPC classification number: H04N19/615 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61 ,  H04N19/63

Abstract: The present invention reduces the complexity in the update step without significantly affecting the coding performance. In the update operation in motion compensated temporal filtering for video coding, an interpolation filter is adaptively selected from a short filter and a long filter so that the update signal can be obtained through the interpolation of prediction residue based on the interpolation filter. A short filter refers to a filter with a relatively small number of filter taps such as two. A long filter refers to a filter with a more than two filter taps.

Abstract translation: 本发明降低了更新步骤中的复杂性，而不显着影响编码性能。 在用于视频编码的运动补偿时间滤波的更新操作中，从短滤波器和长滤波器自适应地选择插值滤波器，使得可以通过基于内插滤波器的预测残差内插来获得更新信号。 短过滤器是指具有相对较少数量的过滤器抽头（例如两个）的过滤器。 长过滤器是指具有两个以上过滤器抽头的过滤器。

公开(公告)号：WO2009040688A3

公开(公告)日：2009-12-23

申请号：PCT/IB2008053310

申请日：2008-08-18

Applicant: NOKIA CORP ,  JACOB MATTHIAS ,  CHEN WEI-CHAO ,  GAO JIANG ,  GELFAND NATASHA ,  GRZESZCZUK RADEK ,  PULLI KARI ,  SCHLOTER PHILIPP ,  WANG XIANGLIN ,  XIONG YINGEN

Inventor： JACOB MATTHIAS ,  CHEN WEI-CHAO ,  GAO JIANG ,  GELFAND NATASHA ,  GRZESZCZUK RADEK ,  PULLI KARI ,  SCHLOTER PHILIPP ,  WANG XIANGLIN ,  XIONG YINGEN

IPC: G06F17/30

CPC classification number: G06F17/30247 ,  G06F17/30241

Abstract: A method, apparatus and computer program product are provided for visually searching feature sets that are organized in a grid-like manner. As such, a feature set associated with a location-based grid area may be received. The location-based grid area may also be associated with the location of a device. After receiving query image features, a visual search may be performed by comparing the query image features with the feature set. The search results are then returned. By conducting the visual search within a feature set that is selected based upon the location of the device, the efficiency of the search can be enhanced and the search may potentially be performed by the device, such as a mobile device, itself.

Abstract translation: 提供了一种方法，装置和计算机程序产品，用于视觉搜索以网格状方式组织的特征集。 因此，可以接收与基于位置的网格区域相关联的特征集。 基于位置的网格区域也可以与设备的位置相关联。 在接收到查询图像特征之后，可以通过将查询图像特征与特征集进行比较来执行视觉搜索。 然后返回搜索结果。 通过在基于设备的位置选择的特征集中进行视觉搜索，可以增强搜索的效率，并且可能由诸如移动设备本身的设备潜在地执行搜索。

公开(公告)号：WO2008010157A3

公开(公告)日：2008-06-26

申请号：PCT/IB2007052774

申请日：2007-07-12

Applicant: NOKIA CORP ,  RIDGE JUSTIN ,  WANG XIANGLIN

Inventor： RIDGE JUSTIN ,  WANG XIANGLIN

IPC: H04N7/26

CPC classification number: H04N19/34 ,  H04N19/102 ,  H04N19/13 ,  H04N19/187 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: An improved system and method for effectively reducing prediction drift and improving coding efficiency in scalable video coding. The present invention provides an improved method for determining an offset value that is used to adjust the value of a, a leaky factor for a block of data that includes only zero coefficients at a base layer. In one embodiment of the invention, the offset value is determined based upon information in the enhancement layer at issue instead of the base layer. In another embodiment, information in both the enhancement layer and the base layer of the current frame is used in determining the offset value.

Abstract translation: 一种改进的系统和方法，用于有效降低可伸缩视频编码中的预测漂移和提高编码效率。 本发明提供了一种用于确定偏移值的改进方法，该偏移值被用来调整在基本层仅包括零系数的数据块的泄漏因子a的值。 在本发明的一个实施例中，基于所讨论的增强层中的信息而不是基础层来确定偏移值。 在另一个实施例中，当前帧的增强层和基础层中的信息被用于确定偏移值。

公开(公告)号：WO2007107855A3

公开(公告)日：2008-06-12

申请号：PCT/IB2007000696

申请日：2007-03-21

Applicant: NOKIA CORP ,  RIDGE JUSTIN ,  WANG XIANGLIN ,  HALLAPURO ANTTI ,  KARCZEWICZ MARTA

Inventor： RIDGE JUSTIN ,  WANG XIANGLIN ,  HALLAPURO ANTTI ,  KARCZEWICZ MARTA

IPC: H04N7/26

CPC classification number: H04N19/34 ,  H04N19/13 ,  H04N19/61 ,  H04N19/63 ,  H04N19/93

Abstract: Methods, devices, and computer code products for encoding and decoding a video signal involving encoding blocks of the video signal by scan position within a coding cycle in decreasing order to increase the probability that the next symbol will be non-zero. Scalable video decoding techniques can include setting a state variable for a block to a run length if the state variable for the current block is zero otherwise decrementing the state variable if it is not zero. The current coefficient for the block can be set to the terminating value if the state variable is zero otherwise the coefficient can be set to zero if the state variable is not zero.

Abstract translation: 用于对视频信号进行编码和解码的方法，装置和计算机代码产品，所述视频信号涉及按照编码周期内的扫描位置按照递减顺序增加视频信号的块，以增加下一个符号将不为零的概率。 如果当前块的状态变量为零，则可扩展视频解码技术可以包括将块的状态变量设置为运行长度，否则如果状态变量不为零则递减状态变量。 如果状态变量为零，则块的当前系数可以设置为终止值，否则如果状态变量不为零，则系数可以设置为零。

公开(公告)号：WO2006109141A9

公开(公告)日：2007-12-27

申请号：PCT/IB2006000849

申请日：2006-04-12

Applicant: NOKIA CORP ,  NOKIA INC ,  BAO YILIANG ,  KARCZEWICZ MARTA ,  RIDGE JUSTIN ,  WANG XIANGLIN

Inventor： BAO YILIANG ,  KARCZEWICZ MARTA ,  RIDGE JUSTIN ,  WANG XIANGLIN

IPC: H04N7/26

CPC classification number: H04N19/34 ,  H04N19/29 ,  H04N19/48 ,  H04N19/61

Abstract: An adaptively formed reference block is used for coding a block in a current frame in the enhancement layer, hi particular, the reference block is formed from a reference block in base layer reconstructed frame and a reference block in the enhancement layer reference frame together with a base layer reconstructed prediction residual block. Furthermore, the reference block for coding is adjusted depending on the transform coefficients of the base layer reconstructed residual layer. Moreover, the actual reference signal used for coding is a weighted average of a reference signal from the reconstructed frame in the base layer and a reference signal from the enhancement layer reference frame together with a base layer reconstruction prediction residual.

Abstract translation: 自适应地形成的参考块用于对增强层当前帧中的块进行编码。特别地，参考块由基本层重建帧中的参考块和增强层参考帧中的参考块以及 基层重构预测残差块。 此外，根据基层重构残余层的变换系数来调整用于编码的参考块。 此外，用于编码的实际参考信号是来自基层中的重构帧的参考信号和来自增强层参考帧的参考信号与基本层重建预测残差的加权平均。