LIFTING-BASED IMPLEMENTATIONS OF ORTHONORMAL SPATIO-TEMPORAL TRANSFORMATIONS
    21.
    发明申请
    LIFTING-BASED IMPLEMENTATIONS OF ORTHONORMAL SPATIO-TEMPORAL TRANSFORMATIONS 失效
    正交空间变换的基于提升的实现

    公开(公告)号:US20090175348A1

    公开(公告)日:2009-07-09

    申请号:US12405179

    申请日:2009-03-16

    IPC分类号: H04N7/26

    摘要: A method and apparatus for encoding video frames is described. In one embodiment, an encoding method includes jointly transforming a set of pixels into high-pass data using an orthonormal transform. The set of pixels includes at least one reference pixel and predicted pixels. The method further includes generating low-pass data using the reference pixel and the high-pass data.

    摘要翻译: 描述用于编码视频帧的方法和装置。 在一个实施例中,编码方法包括使用正交变换将一组像素联合变换为高通数据。 像素集合包括至少一个参考像素和预测像素。 该方法还包括使用参考像素和高通数据生成低通数据。

    Encoding and decoding of digital data using cues derivable at a decoder
    22.
    发明授权
    Encoding and decoding of digital data using cues derivable at a decoder 有权
    使用可在解码器导出的提示对数字数据进行编码和解码

    公开(公告)号:US07400774B2

    公开(公告)日:2008-07-15

    申请号:US10651854

    申请日:2003-08-29

    IPC分类号: G06K9/36 G06K9/46

    摘要: Encoding digital data by using cues at a decoder. An encoder selects an index to indicate a target codeword from the complete space of all codewords to a decoder. The index identifies a group or a set of codewords that contain the target codeword. The sets are represented by a bit-length that is smaller than the code word bit-length thus achieving compression. Two or more codewords in such a set are separated by a predetermined distance and all such sets of codewords considered together form the complete space of all codewords. The encoder sends syntax information, including the index, to specify the decoding. The decoder then uses a set of candidate cues in a comparison operation to determine the target codeword from the indexed set. Processing complexity can be allocated among the encoder, decoder and other possible devices as, for example, in a digital network.

    摘要翻译: 在解码器上使用提示对数字数据进行编码。 编码器从所有码字的完整空间中选择索引以指示目标码字到解码器。 索引标识包含目标码字的组或一组码字。 这些集合由比特长度小的代码字比特长度来表示,从而实现压缩。 这样的集合中的两个或更多个码字被隔开预定的距离,并且所有这些一起考虑的码字集合形成所有码字的完整空间。 编码器发送语法信息,包括索引,以指定解码。 解码器然后在比较操作中使用一组候选提示来确定来自索引集合的目标码字。 处理复杂度可以在编码器,解码器和其他可能的设备中分配,例如在数字网络中。

    SYSTEM AND METHOD FOR EFFICIENT COMPRESSION OF DIGITAL DATA
    23.
    发明申请
    SYSTEM AND METHOD FOR EFFICIENT COMPRESSION OF DIGITAL DATA 有权
    用于数字数据有效压缩的系统和方法

    公开(公告)号:US20070285285A1

    公开(公告)日:2007-12-13

    申请号:US11422974

    申请日:2006-06-08

    IPC分类号: H03M7/00

    摘要: A system for compressing digital data by representing a portion of it predictionally and transformationally as a block of transform coefficients, then quantizing that block selectively into a set of encoding symbols based on an indication whether the transform coefficients represent the portion as having a particular characteristic, and then by encoding the set of encoding symbols into a data bit stream. In particular, frequency may be used as the characteristic of the digital data in many applications.

    摘要翻译: 一种用于通过将数据数据预先和变换地表示为变换系数块来压缩数字数据的系统,然后基于变换系数是否表示该部分具有特定特征的指示将该块有选择地量化到一组编码符号中, 然后通过将该组编码符号编码成数据比特流。 特别地,频率可以用作许多应用中的数字数据的特征。

    Lifting-based implementations of orthonormal spatio-temporal transformations
    25.
    发明申请
    Lifting-based implementations of orthonormal spatio-temporal transformations 失效
    正交时空变换的基于提升的实现

    公开(公告)号:US20050117638A1

    公开(公告)日:2005-06-02

    申请号:US10971896

    申请日:2004-10-22

    IPC分类号: H04B1/66 H04N20060101

    摘要: A method and apparatus for encoding video frames is described. In one embodiment, an encoding method includes jointly transforming a set of pixels into high-pass data using an orthonormal transform. The set of pixels includes at least one reference pixel and predicted pixels. The method further includes generating low-pass data using the reference pixel and the high-pass data.

    摘要翻译: 描述用于编码视频帧的方法和装置。 在一个实施例中,编码方法包括使用正交变换将一组像素联合变换为高通数据。 像素集合包括至少一个参考像素和预测像素。 该方法还包括使用参考像素和高通数据生成低通数据。