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：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：WO2008007342A3

公开(公告)日：2008-06-19

申请号：PCT/IB2007052757

申请日：2007-07-10

Applicant: NOKIA CORP ,  WANG XIANGLIN ,  RIDGE JUSTIN

Inventor： WANG XIANGLIN ,  RIDGE JUSTIN

IPC: H04N7/26

CPC classification number: H04N19/86 ,  H04N19/105 ,  H04N19/117 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/33 ,  H04N19/513 ,  H04N19/61 ,  H04N19/80

Abstract: A system and method for predicting an enhancement layer macroblock. A base laye frame is divided into intra-coded and inter-coded regions. If any portion of the enhancement layer macroblock is covered by both an intra-coded base layer macroblock and an inter-coded base layer macroblock, predictions utilizing the intra coded and inter-coded macroblocks are established independently to generate at leas two prediction values. The at least two prediction values are then combined to give prediction from which the enhancement layer block is coded. Various embodiments serve to smooth the boundary effect between intra-coded regions and inter-coded regions inside the inter-layer prediction for extended spatial scalability.

Abstract translation: 一种用于预测增强层宏块的系统和方法。 基地层分为帧内编码和帧间编码区域。 如果增强层宏块的任何部分被帧内编码的基本层宏块和帧间编码的基本层宏块两者所覆盖，则独立建立利用帧内编码和帧间编码的宏块的预测，以产生两个预测值。 然后组合至少两个预测值以给出增强层块被编码的预测。 各种实施例用于平滑层内预测之间的帧内编码区域和帧间编码区域之间的边界效应，用于扩展的空间可扩展性。

公开(公告)号：WO2006087609A2

公开(公告)日：2006-08-24

申请号：PCT/IB2006000046

申请日：2006-01-12

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

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

IPC: H04N7/28

CPC classification number: H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56

Abstract: In scalable video coding where two predictive motion vectors are calculated: one from the current layer neighboring motion vectors and one from the co-located base layer motion vectors. One of the two predictive motion vectors is chosen as the predictive motion vector for current block. A flag bit is coded to indicate which predictive motion vector is chosen only if it is not possible to infer the layer from which the predictive motion vector for the current block comes. Such inference is possible in many situations, such as when both predictive motion vectors are substantially the same, or only one of the vectors is reliable or available.

Abstract translation: 在计算两个预测运动矢量的可伸缩视频编码中：一个来自当前层相邻运动矢量，一个来自co-located基本层运动矢量。 选择两个预测运动矢量之一作为当前块的预测运动矢量。 只有在不可能推断当前块的预测运动矢量来自的层的情况下，标志位才被编码以指示哪个预测运动矢量被选择。 这种推断在许多情况下是可能的，例如当两个预测运动矢量基本相同时，或者只有一个矢量可靠或可用时。

公开(公告)号：WO2008010157B1

公开(公告)日：2008-09-18

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，用于有效降低可扩展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，该偏移值用于调整在基本层仅包括零系数的数据块的a的泄漏因子的值。 在本发明的一个实施例中，基于所涉及的增强层中的信息而不是基本层来确定偏移值。 在另一个实施例中，当前帧的增强层和基本层中的信息用于确定偏移值。

公开(公告)号：WO2007080486A2

公开(公告)日：2007-07-19

申请号：PCT/IB2007000051

申请日：2007-01-09

Applicant: NOKIA CORP ,  NOKIA INC ,  WANG XIANGLIN ,  KARCZEWICZ MARTA ,  RIDGE JUSTIN ,  AMMAR NEJIB

Inventor： WANG XIANGLIN ,  KARCZEWICZ MARTA ,  RIDGE JUSTIN ,  AMMAR NEJIB

IPC: H04N7/26

CPC classification number: H04N19/34 ,  H04N19/129 ,  H04N19/176 ,  H04N19/187 ,  H04N19/29

Abstract: A FGS entropy coding method is suitable for the case when the refinement coefficients at the FGS layer have different prediction from its base layer. When temporal prediction is used in FGS layer coding and the refinement coefficients at the FGS layer have different prediction from its base layer, drift problem may be caused if the FGS layer is partially decoded. Such drift problem may significantly affect coding performance. This new FGS entropy coding method that can solve or greatly alleviate such drift effect and therefore improve coding performance. Three different FGS methods can be used: FGS entropy coding based on spatial frequency location; FGS entropy coding for decoder oriented two-loop structure; and FGS entropy coding with block-confined coding pass.

Abstract translation: FGS熵编码方法适用于FGS层的细化系数与其基本层具有不同预测的情况。 当在FGS层编码中使用时间预测并且FGS层处的细化系数具有与其基本层不同的预测时，如果FGS层被部分解码，则可能导致漂移问题。 这种漂移问题可能会显着影响编码性能。 这种新的FGS熵编码方法可以解决或大大减轻这种漂移效应，从而提高编码性能。 可以使用三种不同的FGS方法：基于空间频率位置的FGS熵编码; 面向解码器的双环结构的FGS熵编码; 和用块限制编码通过的FGS熵编码。

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：WO2007080477A3

公开(公告)日：2007-10-25

申请号：PCT/IB2007000038

申请日：2007-01-09

Applicant: NOKIA CORP ,  AMMAR NEJIB ,  KARCZEWICZ MARTA ,  RIDGE JUSTIN ,  WANG XAINGLIN

Inventor： AMMAR NEJIB ,  KARCZEWICZ MARTA ,  RIDGE JUSTIN ,  WANG XAINGLIN

IPC: H04N7/26 ,  G06T9/00

CPC classification number: H04N19/59 ,  H04N19/117 ,  H04N19/147 ,  H04N19/172 ,  H04N19/179 ,  H04N19/33

Abstract: An improved switched filter up-sampling mechanism for scalable video coding. A filter switching mechanism of the present invention takes advantage of the best performance of each of the filters in a collaborative manner. The switching process of the present invention can be generalized to more filter choices and potentially relieve the computational complexity due to the added freedom and flexibility of filter choices.

Abstract translation: 用于可伸缩视频编码的改进的切换滤波器上采样机制。 本发明的滤波器切换机构以协作方式利用每个滤波器的最佳性能。 本发明的切换过程可以推广到更多的滤波器选择，并可能由于滤波器选择的附加自由度和灵活性而潜在地减轻计算复杂度。

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。