MULTI-BIT INFORMATION HIDING USING OVERLAPPING SUBSETS
    1.
    发明申请
    MULTI-BIT INFORMATION HIDING USING OVERLAPPING SUBSETS 有权
    使用重叠子码隐藏的多位信息

    公开(公告)号:US20130336409A1

    公开(公告)日:2013-12-19

    申请号:US13524117

    申请日:2012-06-15

    IPC分类号: H04N7/26

    摘要: Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit. Sign bits are hidden in the parity of partially overlapping subsets of a set of coefficients. This enables the hiding of multiple sign bits per coefficient group. Other information bits may be hidden instead of sign bits in some cases.

    摘要翻译: 用于从变换单元中的系数组的编码视频数据的比特流重建系数级的方法和装置。 符号位隐藏在一组系数的部分重叠子集的奇偶校验中。 这使得能够隐藏每个系数组的多个符号位。 在某些情况下,其他信息位可能被隐藏而不是符号位。

    METHODS AND DEVICES FOR DATA COMPRESSION USING A NON-UNIFORM RECONSTRUCTION SPACE
    2.
    发明申请
    METHODS AND DEVICES FOR DATA COMPRESSION USING A NON-UNIFORM RECONSTRUCTION SPACE 审中-公开
    使用非均匀重建空间进行数据压缩的方法和设备

    公开(公告)号:US20130083845A1

    公开(公告)日:2013-04-04

    申请号:US13249304

    申请日:2011-09-30

    IPC分类号: H04N7/26

    摘要: Encoding and decoding methods are presented that use adaptive reconstruction levels. Reconstruction space parameters are developed by an encoder and inserted in the bitstream with the encoded video data. The reconstruction space parameter may include parameters from which the decoder can determine the levels for dequantization of the encoded video data. The reconstruction space parameters may include a first reconstruction level and a step size between other levels. The first reconstruction level may not equal the step size. In some cases, neither may be equal to the quantization step size used to quantize the transform domain coefficients.

    摘要翻译: 提出了使用自适应重建级别的编码和解码方法。 重建空间参数由编码器开发并且被插入到具有编码视频数据的比特流中。 重建空间参数可以包括参数,解码器可以从该参数确定编码视频数据的反量化的级别。 重建空间参数可以包括第一重建级别和其他级别之间的步长。 第一个重建级别可能不等于步长。 在某些情况下,也不能等于用于量化变换域系数的量化步长。

    METHODS AND DEVICES FOR DATA COMPRESSION USING ADAPTIVE RECONSTRUCTION LEVELS
    4.
    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。

    SYSTEM AND METHOD FOR ENCODING AND DECODING PULSE INDICES
    5.
    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。

    REDUCED WORST-CASE CONTEXT-CODED BINS IN VIDEO COMPRESSION WITH PARITY HIDING
    6.
    发明申请
    REDUCED WORST-CASE CONTEXT-CODED BINS IN VIDEO COMPRESSION WITH PARITY HIDING 有权
    视频压缩中具有奇特性隐藏的减少的案例背景编码

    公开(公告)号:US20140003533A1

    公开(公告)日:2014-01-02

    申请号:US13535392

    申请日:2012-06-28

    申请人: Dake HE Jing WANG

    发明人: Dake HE Jing WANG

    IPC分类号: H04N7/26

    摘要: Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit. Parity hiding is used to signal the parity of the upper left coefficient of the coefficient group. Based on the parity, either the significant coefficient flag or the greater-than-one flag is encoded/decoded for that coefficient, but not both. The greater-than-one flag is encoded/decoded irrespective of whether a maximum number of greater-than-one flags have been encoded/decoded with respect to the other coefficients in the coefficient group.

    摘要翻译: 用于从变换单元中的系数组的编码视频数据的比特流重建系数级的方法和装置。 奇偶校验用于表示系数组左上角系数的奇偶性。 基于奇偶校验,对于该系数,有效系数标志或大于1的标记被编码/解码,但不是两者。 无论是否对系数组中的其他系数编码/解码了大于1的标志的最大数目,编码/解码大于1的标志。

    METHODS AND DEVICES FOR CODING AND DECODING THE POSITION OF THE LAST SIGNIFICANT COEFFICIENT
    7.
    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。

    MULTI-LEVEL SIGNIFICANCE MAP SCANNING
    8.
    发明申请
    MULTI-LEVEL SIGNIFICANCE MAP SCANNING 有权
    多层次意义地图扫描

    公开(公告)号:US20130128985A1

    公开(公告)日:2013-05-23

    申请号:US13446186

    申请日:2012-04-13

    IPC分类号: H04N7/30

    摘要: Methods of encoding and decoding for video data are described in which multi-level significance maps are used in the encoding and decoding processes. The significant-coefficient flags that form the significance map are grouped into contiguous groups, and a significant-coefficient-group flag signifies for each group whether that group contains no non-zero significant-coefficient flags. A multi-level scan order may be used in which significant-coefficient flags are scanned group-by-group. The group scan order specifies the order in which the groups are processed, and the scan order specifies the order in which individual significant-coefficient flags within the group are processed. The bitstream may interleave the significant-coefficient-group flags and their corresponding significant-coefficient flags, if any.

    摘要翻译: 描述了用于视频数据的编码和解码方法,其中在编码和解码过程中使用多级重要性图。 形成有效图的有效系数标记被分组成连续的组,并且对于每个组,有意义的系数组标志表示该组是否包含非零有效系数标志。 可以使用多级扫描顺序,其中显着系数标志逐个扫描。 组扫描顺序指定处理组的顺序,扫描顺序指定处理组内各个有效系数标志的顺序。 比特流可以交织有效系数组标志及其对应的有效系数标志(如果有的话)。

    METHODS AND DEVICES FOR REORDERED PARALLEL ENTROPY CODING AND DECODING
    10.
    发明申请
    METHODS AND DEVICES FOR REORDERED PARALLEL ENTROPY CODING AND DECODING 有权
    用于重新平行并行编码和解码的方法和设备

    公开(公告)号:US20110254712A1

    公开(公告)日:2011-10-20

    申请号:US13089599

    申请日:2011-04-19

    IPC分类号: H03M7/30

    CPC分类号: H03M7/40

    摘要: A method for parallel context modeling through reordering the bits of an input sequence to form groups of bits in accordance with a context model-specific reordering schedule. The reordering schedule is developed such that the groups of bits are formed to satisfy two conditions: first, that the context for each of the bits in a group of bits is different from the context of each of the other bits in that group, and the context of each of the bits in that group is determined independently from each of the other bits in that group. The parallel context modeling may be used in encoding or decoding operations.

    摘要翻译: 一种用于通过根据上下文模型特定的重排序表重新排序输入序列的比特以形成比特组的并行上下文建模的方法。 重新排序调度被开发成使得位组被形成为满足两个条件:首先,位组中的每个比特的上下文不同于该组中的每个其他比特的上下文,并且 该组中每个位的上下文独立于该组中的每个其他位确定。 并行上下文建模可用于编码或解码操作。