PARALLEL ENTROPY CODING AND DECODING METHODS AND DEVICES
    1.
    发明申请
    PARALLEL ENTROPY CODING AND DECODING METHODS AND DEVICES 有权
    并行编码和解码方法和设备

    公开(公告)号:US20110200104A1

    公开(公告)日:2011-08-18

    申请号:US12707797

    申请日:2010-02-18

    IPC分类号: H04N7/12 H03M7/00

    摘要: A method for entropy coding data using parallel entropy coders to encode an input sequence as a plurality of encoded subsequences, which are then combined to form an output bitstream. The input sequence is separated into subsequences on the basis of a context model. A method for entropy decoding a bitstream of encoded data by extracting a plurality of encoded subsequences from the bitstream and entropy decoding the encoded subsequences in parallel to generate a plurality of decoded subsequences, which are then interleaved based on a context model to produce a reconstructed sequence.

    摘要翻译: 一种用于使用并行熵编码器熵编码数据以将输入序列编码为多个编码子序列的方法,其然后被组合以形成输出比特流。 基于上下文模型将输入序列分成子序列。 一种用于通过从比特流中提取多个编码子序列来熵解码编码数据的比特流的方法,并行地对编码的子序列进行熵解码以产生多个经解码的子序列,然后基于上下文模型进行交织以产生重构序列 。

    Parallel entropy coding and decoding methods and devices
    2.
    发明授权
    Parallel entropy coding and decoding methods and devices 有权
    并行熵编码和解码方法和设备

    公开(公告)号:US08487791B2

    公开(公告)日:2013-07-16

    申请号:US12707797

    申请日:2010-02-18

    IPC分类号: H03M7/00

    摘要: A method for entropy coding data using parallel entropy coders to encode an input sequence as a plurality of encoded subsequences, which are then combined to form an output bitstream. The input sequence is separated into subsequences on the basis of a context model. A method for entropy decoding a bitstream of encoded data by extracting a plurality of encoded subsequences from the bitstream and entropy decoding the encoded subsequences in parallel to generate a plurality of decoded subsequences, which are then interleaved based on a context model to produce a reconstructed sequence.

    摘要翻译: 一种用于使用并行熵编码器熵编码数据以将输入序列编码为多个编码子序列的方法,其然后被组合以形成输出比特流。 基于上下文模型将输入序列分成子序列。 一种用于通过从比特流中提取多个编码子序列来熵解码编码数据的比特流的方法,并行地对编码的子序列进行熵解码以产生多个解码子序列,然后基于上下文模型进行交织以产生重构序列 。

    Methods and devices for load balancing in parallel entropy coding and decoding
    3.
    发明授权
    Methods and devices for load balancing in parallel entropy coding and decoding 有权
    并行熵编码和解码中负载均衡的方法和装置

    公开(公告)号:US08174414B2

    公开(公告)日:2012-05-08

    申请号:US12758905

    申请日:2010-04-13

    IPC分类号: H03M7/00

    CPC分类号: H03M7/40

    摘要: Devices and methods for entropy decoding a bitstream of encoded data by extracting a plurality of encoded subsequences from a payload field of the bitstream for parallel decoding on a set of parallel entropy decoders. The method includes dividing the payload of concatenated encoded subsequences into segments using a distribution function and distributing the segments amongst the set of parallel entropy decoders to balance the computational load among the parallel entropy decoders. The received bitstream includes auxiliary information inserted by the encoder to enable the decoder to entropy decode segments that begin with a portion of an encoded subsequence.

    摘要翻译: 通过从比特流的有效载荷字段提取多个编码子序列来对一组并行熵解码器进行并行解码来熵解码编码数据的比特流的装置和方法。 该方法包括使用分布函数将连接的编码子序列的有效载荷划分成段,并且在并行熵解码器集合之间分配段以平衡并行熵解码器之间的计算负载。 所接收的比特流包括由编码器插入的辅助信息,以使解码器可以熵解码以编码子序列的一部分开头的片段。

    IN-LOOP DEBLOCKING FOR INTRA-CODED IMAGES OR FRAMES
    4.
    发明申请
    IN-LOOP DEBLOCKING FOR INTRA-CODED IMAGES OR FRAMES 审中-公开
    内编码图像或框架的环内解锁

    公开(公告)号:US20120093220A1

    公开(公告)日:2012-04-19

    申请号:US13334227

    申请日:2011-12-22

    IPC分类号: H04N7/32

    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。

    MODIFIED ENTROPY ENCODING FOR IMAGES AND VIDEOS
    5.
    发明申请
    MODIFIED ENTROPY ENCODING FOR IMAGES AND VIDEOS 审中-公开
    用于图像和视频的修改的入侵编码

    公开(公告)号:US20100208804A1

    公开(公告)日:2010-08-19

    申请号:US12704623

    申请日:2010-02-12

    IPC分类号: H04N7/50 H04N7/24

    摘要: A method and encoder for entropy encoding image data using a dynamically determined coding order, and a method and decoder for entropy decoding encoded data encoded using a dynamically determined coding order. The coding order for encoding quantized transform domain coefficients is dynamically determined for the image based on at least one characteristic of the quantized transform domain coefficients. The characteristic may be quantization step size if non-uniform quantization is employed for blocks of data.

    摘要翻译: 一种用于使用动态确定的编码顺序对图像数据进行熵编码的方法和编码器,以及用于熵解码使用动态确定的编码顺序编码的编码数据的方法和解码器。 基于量化的变换域系数的至少一个特性,动态地为图像动态地确定编码量化的变换域系数的编码顺序。 如果对数据块采用非均匀量化,则该特性可以是量化步长。

    Methods and devices for data compression using adaptive reconstruction levels
    6.
    发明授权
    Methods and devices for data compression using adaptive reconstruction levels 有权
    使用自适应重建级别的数据压缩的方法和设备

    公开(公告)号:US08582639B2

    公开(公告)日:2013-11-12

    申请号:US12830548

    申请日:2010-07-06

    IPC分类号: H04N7/50 H04B1/66

    摘要: Encoding and decoding methods that perform quantization using adaptive reconstruction levels are presented. The reconstruction levels for a given partitioning of the data space may be selected based upon the distribution of data points within each sub-part defined by the partitioning. In some cases, the adaptive reconstruction levels may be based upon an average of the data points within each sub-part. In some cases, the adaptive reconstruction levels may be selected using a rate-distortion analysis including the quantization distortion associated with the levels versus the data points and the rate associated with transmitting the encoded adaptive reconstruction levels. The methods relate to data compression in a range of applications including audio, images and video.

    摘要翻译: 提出了使用自适应重建级别执行量化的编码和解码方法。 可以基于由分区定义的每个子部分内的数据点的分布来选择数据空间的给定划分的重建级别。 在一些情况下,自适应重建级别可以基于每个子部分内的数据点的平均值。 在一些情况下,可以使用速率 - 失真分析来选择自适应重建级别,所述速率 - 失真分析包括与所述级别相对于所述数据点相关联的量化失真和与传送所述编码的自适应重建级别相关联的速率 该方法涉及包括音频,图像和视频在内的一系列应用中的数据压缩。

    METHOD AND DEVICE FOR VIDEO ENCODING USING PREDICTED RESIDUALS
    7.
    发明申请
    METHOD AND DEVICE FOR VIDEO ENCODING USING PREDICTED RESIDUALS 有权
    使用预测残差视频编码的方法和设备

    公开(公告)号:US20110170598A1

    公开(公告)日:2011-07-14

    申请号:US12684461

    申请日:2010-01-08

    IPC分类号: H04N7/26

    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。

    Adaptive quantization with balanced pixel-domain distortion distribution in image processing
    8.
    发明授权
    Adaptive quantization with balanced pixel-domain distortion distribution in image processing 有权
    在图像处理中具有平衡像素域失真分布的自适应量化

    公开(公告)号:US08934543B2

    公开(公告)日:2015-01-13

    申请号:US12704641

    申请日:2010-02-12

    摘要: Methods and encoders and decoders for adaptively quantizing transform domain coefficients in image and/or video encoding/decoding. For an image having a number of blocks, each block having N coefficients, the quantization step size for each coefficient is selected dynamically, thus resulting in a quantizer that may apply different step sizes to different coefficients. The selected step sizes for each coefficient are used for those coefficients within all blocks in the image/frame. In one aspect, the step sizes are selected on the basis of balancing pixel domain distortion when the image/frame is decoded.

    摘要翻译: 用于对图像和/或视频编码/解码中的变换域系数进行自适应量化的方法和编码器和解码器。 对于具有多个块的图像,具有N个系数的每个块,动态地选择每个系数的量化步长,从而得到可以对不同系数应用不同步长的量化器。 每个系数的所选步长用于图像/帧中所有块内的那些系数。 在一个方面,当对图像/帧进行解码时,基于平衡像素域失真来选择步长。

    METHOD AND ENCODER FOR CONSTRAINED SOFT-DECISION QUANTIZATION IN DATA COMPRESSION
    9.
    发明申请
    METHOD AND ENCODER FOR CONSTRAINED SOFT-DECISION QUANTIZATION IN DATA COMPRESSION 有权
    数据压缩中约束软决策的方法和编码器

    公开(公告)号:US20110200101A1

    公开(公告)日:2011-08-18

    申请号:US12707729

    申请日:2010-02-18

    IPC分类号: H04N7/26

    摘要: A method of encoding a video using constrained soft-decision quantization. The soft-decision quantization includes first performing hard-decision quantization to obtain hard quantized coefficients and, then, obtaining a soft quantized coefficient using a rate-distortion calculation over a search range of quantization levels for a transform domain coefficient, wherein the search range of quantization levels for that transform domain coefficient is constrained within a number of quantization levels of a corresponding hard quantized coefficient. The search range may be based upon a fixed threshold, the coefficient position, the hard quantized coefficient magnitude, a threshold value less accumulated distortion, or other factors, including combinations of these factors. The accumulated distortion may be measured by an L1 norm.

    摘要翻译: 一种使用受限的软判决量化对视频进行编码的方法。 软判决量化包括首先执行硬判决量化以获得硬量化系数,然后使用在变换域系数的量化级的搜索范围上的速率失真计算来获得软量化系数,其中搜索范围 该变换域系数的量化级别被限制在对应的硬量化系数的量化级数中。 搜索范围可以基于固定阈值,系数位置,硬量化系数幅度,阈值较小累积失真或其它因素,包括这些因素的组合。 可以通过L1范数来测量累积的失真。

    Method and device for video encoding using predicted residuals
    10.
    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。