METHOD AND APPARATUS OF TEMPORAL FILTERING FOR SIDE INFORMATION INTERPOLATION AND EXTRAPOLATION IN WYNER-ZIV VIDEO COMPRESSION SYSTEMS
    1.
    发明申请
    METHOD AND APPARATUS OF TEMPORAL FILTERING FOR SIDE INFORMATION INTERPOLATION AND EXTRAPOLATION IN WYNER-ZIV VIDEO COMPRESSION SYSTEMS 失效
    方法和装置在WIVER-ZIV视频压缩系统中的侧面信息插值和扩展的时间滤波

    公开(公告)号:US20080159391A1

    公开(公告)日:2008-07-03

    申请号:US11619567

    申请日:2007-01-03

    申请人: Dake He Ligang Hu

    发明人: Dake He Ligang Hu

    IPC分类号: H04N11/02

    摘要: A method (and system) for video coding includes receiving a first reference frame having a first pixel value at a first pixel position, a second reference frame having a second pixel value at a second pixel position, and a third reference frame having a third pixel value at a third pixel position, determining a first motion vector between the first pixel position and the second pixel position, determining a second motion vector between the second pixel position and the third pixel position, and determining a fourth pixel value for a fourth frame based upon a linear or nonlinear combination of the first pixel value, the second pixel value, and the third pixel value.

    摘要翻译: 一种用于视频编码的方法(和系统)包括:在第一像素位置处接收具有第一像素值的第一参考帧,在第二像素位置处具有第二像素值的第二参考帧,以及具有第三像素的第三参考帧 确定第一像素位置和第二像素位置之间的第一运动矢量,确定第二像素位置与第三像素位置之间的第二运动矢量,以及确定第四像素位置的第四像素值 在第一像素值,第二像素值和第三像素值的线性或非线性组合之间。

    Methods and devices for context set selection
    2.
    发明授权
    Methods and devices for context set selection 有权
    上下文集选择的方法和设备

    公开(公告)号:US09584812B2

    公开(公告)日:2017-02-28

    申请号:US13354485

    申请日:2012-01-20

    摘要: Methods of encoding and decoding for video data are described for encoding or decoding multi-level significance maps. Distinct context sets may be used for encoding the significant-coefficient flags in different regions of the transform unit. In a fixed case, the regions are defined by coefficient group borders. In one example, the upper-left coefficient group is a first region and the other coefficient groups are a second region. In a dynamic case, the regions are defined by coefficient group borders, but the encoder and decoder dynamically determine in which region each coefficient group belongs. Coefficient groups may be assigned to one region or another based on, for example, whether their respective significant-coefficient-group flags were inferred or not.

    摘要翻译: 描述用于视频数据的编码和解码的方法用于对多级重要性图进行编码或解码。 不同的上下文集合可用于对变换单元的不同区域中的有效系数标记进行编码。 在固定情况下,区域由系数组边界定义。 在一个示例中,左上系数组是第一区域,其它系数组是第二区域。 在动态情况下,区域由系数组边界定义,但编码器和解码器动态地确定每个系数组属于哪个区域。 可以基于例如它们各自的有效系数组标志是否被推断来将系数组分配给一个区域或另一个区域。

    Methods and systems for pipelining within binary arithmetic coding and decoding
    3.
    发明授权
    Methods and systems for pipelining within binary arithmetic coding and decoding 有权
    二进制算术编码和解码中流水线的方法和系统

    公开(公告)号:US09172962B2

    公开(公告)日:2015-10-27

    申请号:US13354437

    申请日:2012-01-20

    摘要: Methods of encoding and decoding for video data are described for encoding or decoding multi-level significance maps while enabling pipelining of the BAC engine. In one example, coefficient groups are redefined to remove the significant-coefficient flags of the first and last position of a block and replace them with significant-coefficient flags of the last position in the previous block and the first position in the next block. A modified scan order is applied to each coefficient group. In another example, the coefficient groups remain block-based, but the scan order is modified to interleave the encoding and decoding sequential coefficient groups.

    摘要翻译: 描述用于视频数据的编码和解码的方法用于在启用BAC引擎的流水线时对多级重要性图进行编码或解码。 在一个示例中,重新定义系数组以去除块的第一和最后位置的有效系数标志,并将其替换为先前块中的最后位置和下一块中的第一位置的有效系数标志。 修改的扫描顺序应用于每个系数组。 在另一示例中,系数组保持基于块,但扫描顺序被修改以交织编码和解码顺序系数组。

    Method and device for video encoding using predicted residuals
    4.
    发明授权
    Method and device for video encoding using predicted residuals 有权
    使用预测残差的视频编码的方法和装置

    公开(公告)号:US08559519B2

    公开(公告)日:2013-10-15

    申请号:US12684461

    申请日:2010-01-08

    IPC分类号: H04N11/02 H04N7/12

    摘要: An encoder for encoding a video by performing motion estimation using predicted residuals in the rate-distortion cost expression. The predicted residuals are determined by finding a predicted motion vector with respect to the original reference frame and calculating the corresponding residual values. The actual motion vector is then selected based on minimization of the rate-distortion cost expression with respect to the reconstructed reference frame, where the rate-distortion cost expression includes the predicted residuals. In particular, the cost expression includes reconstructed predicted residuals within the distortion term.

    摘要翻译: 一种用于通过使用速率失真成本表达式中的预测残差执行运动估计来对视频进行编码的编码器。 通过找到关于原始参考帧的预测运动矢量并计算相应的残差来确定预测残差。 然后基于相对于重构的参考帧的速率失真成本表达式的最小化来选择实际运动矢量,其中速率失真成本表达式包括预测的残差。 特别地,成本表达式包括在失真项内的重建的预测残差。

    Methods and apparatus for secure distribution and storage of data using N channels
    5.
    发明授权
    Methods and apparatus for secure distribution and storage of data using N channels 有权
    使用N个通道安全地分发和存储数据的方法和装置

    公开(公告)号:US08532220B2

    公开(公告)日:2013-09-10

    申请号:US12712740

    申请日:2010-02-25

    IPC分类号: H04L27/00

    CPC分类号: H03M7/30

    摘要: Methods and apparatus are provided for secure distribution and storage of data using N channels. An input data sequence, X, is distributed using a plurality, N, of channels. In one embodiment, the input data sequence, X, is split into N subsequences; and the N subsequences are encoded into N bit streams using a set of Slepian-Wolf codes with N separate encoders and a joint decoder. The Slepian-Wolf codes can be selected to ensure a computational complexity to obtain a portion of the input data sequence grows exponentially with respect to a length of the input data sequence unless all of the N bit streams are compromised. In another embodiment, the input data sequence, X, is compressed using a lossless data compressing techniques; and the compressed input data sequence is split into N subsequences that are distributed.

    摘要翻译: 提供了使用N个信道来安全地分发和存储数据的方法和装置。 使用多个N个信道来分配输入数据序列X。 在一个实施例中,输入数据序列X被分成N个子序列; 并且使用具有N个分离编码器和联合解码器的Slepian-Wolf码集合将N个子序列编码为N个比特流。 可以选择Slepian-Wolf码,以确保获得输入数据序列的一部分相对于输入数据序列的长度指数地增长的计算复杂度,除非所有N个比特流都受到损害。 在另一个实施例中,使用无损数据压缩技术来压缩输入数据序列X; 并且压缩的输入数据序列被分割成分布的N个子序列。

    Methods and devices for reducing sources in binary entropy coding and decoding
    6.
    发明授权
    Methods and devices for reducing sources in binary entropy coding and decoding 有权
    用于减少二进制熵编码和解码中的源的方法和装置

    公开(公告)号:US08436755B2

    公开(公告)日:2013-05-07

    申请号:US13112597

    申请日:2011-05-20

    IPC分类号: H03M7/00

    CPC分类号: H03M7/4006

    摘要: Methods and systems are described for combining sources in a data compression system. In a system in which a context model results in the production of multiple sources or symbols, each source being associated with a probability estimate, sources may be combined by defining another, reduced size, set of probabilities. The new set of probabilities may be a subset of the predefined set of probabilities provided by the context model. Minimizing relative entropy may be a basis upon which to define a mapping of predefined probabilities to the new set of probabilities. An input sequence that was modeled using the context model may then be entropy encoded and entropy decoded using the new set of probabilities based on a mapping between the new probabilities and the predefined probabilities.

    摘要翻译: 描述了用于在数据压缩系统中组合源的方法和系统。 在上下文模型导致产生多个源或符号的系统中,每个源与概率估计相关联,源可以通过定义另一个缩小的大小的概率集合来组合。 新的概率集合可以是由上下文模型提供的预定义概率集合的子集。 最小化相对熵可以是将预定义概率映射到新的概率集合的基础。 然后使用上下文模型建模的输入序列可以基于新概率和预定义概率之间的映射,使用新的概率集进行熵编码和熵解码。

    ADAPTIVE FILTERING BASED ON PATTERN INFORMATION
    7.
    发明申请
    ADAPTIVE FILTERING BASED ON PATTERN INFORMATION 有权
    基于模式信息的自适应滤波

    公开(公告)号:US20130022099A1

    公开(公告)日:2013-01-24

    申请号:US13187961

    申请日:2011-07-21

    申请人: Ying Liu Dake He

    发明人: Ying Liu Dake He

    IPC分类号: H04N7/26

    摘要: Encoding video data that includes a frame includes: generating a reconstructed frame from compressed data for the frame, partitioning at least some pixels of the reconstructed frame into a plurality of segments of one or more pixels, based at least in part on pattern information for individual pixels, and generating respective filter information for each of one or more of the plurality of segments. Encoded video data is generated that includes the compressed data for the frame and the generated filter information.

    摘要翻译: 对包括帧的视频数据进行编码包括:至少部分地基于用于个体的图案信息,从所述帧的压缩数据生成重建帧,将所述重构帧的至少一些像素划分为一个或多个像素的多个片段 并且为多个片段中的一个或多个片段中的每个片段的每一个片段生成相应的滤色器信息。 生成包括帧的压缩数据和生成的过滤器信息的编码视频数据。

    In-loop deblocking for intra-coded images or frames
    8.
    发明授权
    In-loop deblocking for intra-coded images or frames 失效
    帧内编码图像或帧的环路去块

    公开(公告)号:US08311109B2

    公开(公告)日:2012-11-13

    申请号:US12704662

    申请日:2010-02-12

    IPC分类号: H04N7/12

    摘要: Methods and encoders/decoders for applying in-loop deblocking to intra-coded images/frames. In a decoding context, a deblocking filter is applied to reconstructed pixels of an intra-coded block prior to decoding the subsequent block in the decoding sequence. In an encoding context, a deblocking filter is applied to reconstructed pixels of an intra-coded block in an inter-coding loop before encoding a subsequent block in the coding order for the image.

    摘要翻译: 用于将内循环去块锁定到帧内编码图像/帧的方法和编码器/解码器。 在解码上下文中,在对解码序列中的后续块进行解码之前,将去块滤波器应用于帧内编码块的重构像素。 在编码上下文中,在编码图像的编码顺序中的后续块之前,将解块滤波器应用于帧间编码循环中的帧内编码块的重构像素。

    System and method for encoding and decoding pulse indices
    9.
    发明授权
    System and method for encoding and decoding pulse indices 有权
    脉冲指数编码和解码的系统和方法

    公开(公告)号:US08280729B2

    公开(公告)日:2012-10-02

    申请号:US12692245

    申请日:2010-01-22

    IPC分类号: G10L19/10 G10L19/12

    CPC分类号: G10L19/12 G10L2019/0007

    摘要: Methods, and corresponding codec-containing devices are provided that have source coding schemes for encoding a component of an excitation. In some cases, the source coding scheme is an enumerative source coding scheme, while in other cases the source coding scheme is an arithmetic source coding scheme. In some cases, the source coding schemes are applied to encode a fixed codebook component of the excitation for a codec employing codebook excited linear prediction, for example an AMR-WB (Adaptive Multi-Rate-Wideband) speech codec.

    摘要翻译: 提供了具有编码激励分量的源编码方案的方法和相应的编解码器装置。 在一些情况下,源编码方案是枚举源编码方案,而在其他情况下,源编码方案是算术源编码方案。 在一些情况下,源编码方案被应用于编码使用码本激励线性预测的编解码器的激励的固定码本分量,例如AMR-WB(自适应多速率 - 宽带)语音编解码器。

    Method and System Using Prediction and Error Correction for the Compact Representation of Quantization Matrices In Video Compression
    10.
    发明申请
    Method and System Using Prediction and Error Correction for the Compact Representation of Quantization Matrices In Video Compression 审中-公开
    使用预测和误差校正的方法和系统在视频压缩中的量化矩阵的紧凑表示

    公开(公告)号:US20120230422A1

    公开(公告)日:2012-09-13

    申请号:US13416509

    申请日:2012-03-09

    IPC分类号: H04N7/30

    CPC分类号: H04N19/126 H04N19/463

    摘要: In some implementations, a method for encoding data comprising a matrix of elements for scaling transform coefficients before quantization of the scaled transform coefficients includes generating a sequence of values from the elements of the matrix according to a predetermined order. A plurality of adjacent values in the sequence is generated from respective elements of the matrix. A representation of the data is encoded based at least in part on encoding repeated instances of a specified series of two or more values in the sequence as a corresponding symbol not appearing in the sequence.

    摘要翻译: 在一些实施方式中,一种用于编码数据的方法,包括用于在经缩放的变换系数的量化之前缩放变换系数的元素矩阵,包括根据预定顺序从矩阵的元素生成值序列。 从矩阵的各个元素生成序列中的多个相邻值。 该数据的表示至少部分地基于编码序列中两个或更多个值的指定序列的重复实例,作为未出现在序列中的相应符号。