Methods and devices for data compression using adaptive reconstruction levels
    1.
    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
    2.
    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。

    Method and device for video encoding using predicted residuals
    3.
    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。

    In-loop deblocking for intra-coded images or frames
    4.
    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
    5.
    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。

    METHODS AND DEVICES FOR DATA COMPRESSION USING OFFSET-BASED ADAPTIVE RECONSTRUCTION LEVELS
    6.
    发明申请
    METHODS AND DEVICES FOR DATA COMPRESSION USING OFFSET-BASED ADAPTIVE RECONSTRUCTION LEVELS 有权
    使用基于偏移的自适应重建级别进行数据压缩的方法和设备

    公开(公告)号:US20120219055A1

    公开(公告)日:2012-08-30

    申请号:US13155616

    申请日:2011-06-08

    IPC分类号: H04N7/26

    摘要: Encoding and decoding methods are presented that used offset-based adaptive reconstruction levels. The offset data is inserted in the bitstream with the encoded video data. The offset data may be differential data and may be an index to an array of offset values from which the differential offset is calculated by the decoder. The offset to an adaptive reconstruction level may be adjusted for each slice. The offsets may be specific to a particular level/index and data type. In some cases, offsets may only be sent for a subset of the levels. Higher levels may apply no offset, may apply an average offset, or may apply the offset used for the highest level having a level-specific offset.

    摘要翻译: 提出了使用基于偏移的自适应重建级别的编码和解码方法。 偏移数据被插入到具有编码视频数据的比特流中。 偏移数据可以是差分数据,并且可以是由解码器计算差分偏移的偏移值的阵列的索引。 可以针对每个切片调整对自适应重建级别的偏移。 偏移量可能特定于特定级别/索引和数据类型。 在某些情况下,只能为子集的级别发送偏移量。 较高的等级可以不应用偏移量,可以应用平均偏移量,或者可以应用用于具有水平特定偏移的最高级别的偏移量。

    IN-LOOP DEBLOCKING FOR INTRA-CODED IMAGES OR FRAMES
    7.
    发明申请
    IN-LOOP DEBLOCKING FOR INTRA-CODED IMAGES OR FRAMES 失效
    内编码图像或框架的环内解锁

    公开(公告)号:US20100208806A1

    公开(公告)日:2010-08-19

    申请号:US12704662

    申请日:2010-02-12

    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。

    ADAPTIVE QUANTIZATION WITH BALANCED PIXEL-DOMAIN DISTORTION DISTRIBUTION IN IMAGE PROCESSING
    8.
    发明申请
    ADAPTIVE QUANTIZATION WITH BALANCED PIXEL-DOMAIN DISTORTION DISTRIBUTION IN IMAGE PROCESSING 有权
    图像处理中具有平衡像差失真分布的自适应量化

    公开(公告)号:US20100208805A1

    公开(公告)日:2010-08-19

    申请号:US12704641

    申请日:2010-02-12

    IPC分类号: H04N7/50 H04N7/30 H04N7/64

    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。

    Methods and devices for data compression using offset-based adaptive reconstruction levels
    10.
    发明授权
    Methods and devices for data compression using offset-based adaptive reconstruction levels 有权
    使用基于偏移的自适应重建级别进行数据压缩的方法和装置

    公开(公告)号:US08780972B2

    公开(公告)日:2014-07-15

    申请号:US13155616

    申请日:2011-06-08

    摘要: Encoding and decoding methods are presented that used offset-based adaptive reconstruction levels. The offset data is inserted in the bitstream with the encoded video data. The offset data may be differential data and may be an index to an array of offset values from which the differential offset is calculated by the decoder. The offset to an adaptive reconstruction level may be adjusted for each slice. The offsets may be specific to a particular level/index and data type. In some cases, offsets may only be sent for a subset of the levels. Higher levels may apply no offset, may apply an average offset, or may apply the offset used for the highest level having a level-specific offset.

    摘要翻译: 提出了使用基于偏移的自适应重建级别的编码和解码方法。 偏移数据被插入到具有编码视频数据的比特流中。 偏移数据可以是差分数据,并且可以是由解码器计算差分偏移的偏移值的阵列的索引。 可以针对每个切片调整对自适应重建级别的偏移。 偏移量可能特定于特定级别/索引和数据类型。 在某些情况下,只能为子集的级别发送偏移量。 较高的等级可以不应用偏移量,可以应用平均偏移量,或者可以应用用于具有水平特定偏移量的最高级别的偏移量。