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    Real time algorithms and architectures for coding images compressed by DWT-based techniques
    1.
    发明授权
    Real time algorithms and architectures for coding images compressed by DWT-based techniques 失效
    用于编码通过基于DWT技术压缩的图像的实时算法和架构

    公开(公告)号：US6124811A

    公开(公告)日：2000-09-26

    申请号：US109475

    申请日：1998-07-02

    申请人： Tinku Acharya ,  Lina J. Karam ,  Francescomaria Marino

    发明人： Tinku Acharya ,  Lina J. Karam ,  Francescomaria Marino

    IPC分类号： G06T9/00 ,  H03M7/40 ,  H03M7/46 ,  H03M7/48 ,  H04N1/41 ,  H04N7/26 ,  H04N7/32 ,  H03M7/30

    CPC分类号： H03M7/46 ,  H03M7/40 ,  H04N19/186 ,  H04N19/61 ,  H04N19/63 ,  H04N19/93 ,  H04N19/10 ,  H04N19/13

    摘要： What is disclosed is a method that allows a fixed length codeword and flag to serve as a structure for encoding large run lengths, a sequence of such structures representing the number of zeroes between two non-zero values in a data set to be encoded. Also disclosed is an adaptive encoding technique that determines an encoding method suitable with the entropy characteristics of the data to be encoded. An architecture is disclosed which allows the size of the fixed length to be varied, if needed. This architecture includes a plurality of logic networks coupled to a single counter, each of which may be enabled depending on the desired codeword size.

    摘要翻译： 所公开的是允许固定长度的码字和标志用作编码大行程长度的结构的方法，这种结构的序列表示要编码的数据集中的两个非零值之间的零数。 还公开了一种自适应编码技术，其确定适合于要编码的数据的熵特性的编码方法。 如果需要，公开了允许固定长度的大小变化的架构。 该架构包括耦合到单个计数器的多个逻辑网络，每个逻辑网络可以根据期望的码字大小启用。