METHOD AND SYSTEM TO REDUCE MODELLING OVERHEAD FOR DATA COMPRESSION
    22.
    发明申请
    METHOD AND SYSTEM TO REDUCE MODELLING OVERHEAD FOR DATA COMPRESSION 审中-公开
    减少数据压缩建模的方法和系统

    公开(公告)号:US20120314760A1

    公开(公告)日:2012-12-13

    申请号:US13491693

    申请日:2012-06-08

    申请人: Dake HE

    发明人: Dake HE

    IPC分类号: H04N7/26 H03M7/00

    摘要: A method for decoding compressed data that has been encoded using a context model, each context having a context state corresponding to a probability estimate. Each bin of the data has been encoded using the probability estimate corresponding to the context state for the context associated with that bin. At the decoder, for decoding a series of bins associated with a given context, an initial probability estimate is determined using an initial context state for the given context and the series of bins are decoded and reconstructed using that initial probability estimate. After the series is decoded, the context state is updated based on the reconstructed bins for the series to produce an updated context state for that context to be used in decoding a subsequence portion of the bitstream.

    摘要翻译: 一种用于解码已经使用上下文模型编码的压缩数据的方法,每个上下文具有与概率估计相对应的上下文状态。 已经使用对应于与该仓相关联的上下文的上下文状态的概率估计来对每个数据块进行编码。 在解码器中,为了解码与给定上下文相关联的一系列箱,使用给定上下文的初始上下文状态来确定初始概率估计,并且使用该初始概率估计对一系列仓进行解码和重建。 在系列被解码之后,基于用于该系列的重构的存储体来更新上下文状态,以产生用于解码比特流的子序列部分的该上下文的更新的上下文状态。

    METHODS AND DEVICES FOR CODING AND DECODING THE POSITION OF THE LAST SIGNIFICANT COEFFICIENT
    23.
    发明申请
    METHODS AND DEVICES FOR CODING AND DECODING THE POSITION OF THE LAST SIGNIFICANT COEFFICIENT 有权
    用于编码和解码最近重要系数位置的方法和装置

    公开(公告)号:US20120262313A1

    公开(公告)日:2012-10-18

    申请号:US13087462

    申请日:2011-04-15

    申请人: Dake HE Jing WANG

    发明人: Dake HE Jing WANG

    IPC分类号: H03M7/30

    摘要: Methods and devices are described for entropy coding data using an entropy coder to encode quantized transform domain coefficient data. Last significant coefficient information is signaled in the bitstream using two-dimensional coordinates for the last significant coefficient. The context for bins of one of the coordinates is based, in part, upon the value of the other of the coordinates. In one case, instead of signaling last significant coefficient information, the number of non-zero coefficients is binarized and entropy encoded.

    摘要翻译: 描述了使用熵编码器对数据进行熵编码以对量化的变换域系数数据进行编码的方法和装置。 在比特流中用最后一个有效系数的二维坐标来表示最后一个有效系数信息。 坐标之一的仓的上下文部分地基于另一坐标的值。 在一种情况下,代替信令最后一个有效系数信息,非零系数的数量被二进制化并进行熵编码。

    METHODS AND DEVICES FOR DATA COMPRESSION USING ADAPTIVE RECONSTRUCTION LEVELS
    24.
    发明申请
    METHODS AND DEVICES FOR DATA COMPRESSION USING ADAPTIVE RECONSTRUCTION LEVELS 有权
    使用自适应重建级别进行数据压缩的方法和设备

    公开(公告)号:US20120008680A1

    公开(公告)日:2012-01-12

    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,可以使用包括与电平相对于数据点相关联的量化失真的速率失真分析以及与发送编码的自适应重建级别相关联的速率来选择自适应重建级别。 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。

    METHODS AND DEVICES FOR INCORPORATING DEBLOCKING INTO ENCODED VIDEO
    25.
    发明申请
    METHODS AND DEVICES FOR INCORPORATING DEBLOCKING INTO ENCODED VIDEO 有权
    用于将编码成嵌入视频的方法和设备

    公开(公告)号:US20110249748A1

    公开(公告)日:2011-10-13

    申请号:US13085580

    申请日:2011-04-13

    IPC分类号: H04N7/50 H04N7/26 H04N7/32

    摘要: Encoders and methods of encoding that incorporate deblocking into the encoding process. An encoder performs a two-cycle encoding process. First, an original block is processed and then reconstructed and deblocked. The reconstruction and the deblocked reconstruction are compared to the original and an intermediate block is created that contains the portions of the reconstruction or the deblocked reconstruction that are more similar to the original. In the second cycle, the intermediate block serves to generate a modified original block, which is then used in a prediction process to create a new prediction block. The new prediction block as compared to the original gives new residuals. The new prediction and new residuals are entropy coded to generate the encoded video data. The new prediction block and new residuals incorporate the deblocking elements selectively identified during the first cycle, thereby eliminating the need for deblocking at the decoder. The prediction operation may be motion prediction or spatial prediction.

    摘要翻译: 编码器和编码方法,将解封锁结合到编码过程中。 编码器执行两周期编码处理。 首先,处理原始块,然后重建和解块。 将重建和解块重构与原始的重建进行比较,创建一个包含与原来更接近的重构或解块重构的部分的中间块。 在第二周期中,中间块用于产生经修改的原始块,然后将其用于预测过程以创建新的预测块。 与原来相比,新的预测块产生了新的残差。 新的预测和新的残差被熵编码以产生编码的视频数据。 新的预测块和新的残差包括在第一周期期间选择性地识别的去块元件,从而消除了在解码器处的解块的需要。 预测操作可以是运动预测或空间预测。

    SYSTEM AND METHOD FOR ENCODING AND DECODING PULSE INDICES
    26.
    发明申请
    SYSTEM AND METHOD FOR ENCODING AND DECODING PULSE INDICES 有权
    编码和解码脉冲指标的系统和方法

    公开(公告)号:US20110184733A1

    公开(公告)日:2011-07-28

    申请号:US12692245

    申请日:2010-01-22

    IPC分类号: G10L19/12 G10L19/02

    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。