ENCODING METHOD, DECODING METHOD, ENCODING DEVICE AND DECODING DEVICE
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    发明申请
    ENCODING METHOD, DECODING METHOD, ENCODING DEVICE AND DECODING DEVICE 审中-公开
    编码方法,解码方法,编码设备和解码设备

    公开(公告)号:US20120128066A1

    公开(公告)日:2012-05-24

    申请号:US13388368

    申请日:2010-08-06

    IPC分类号: H04N7/30

    摘要: A coding method comprises: transforming an input signal; quantizing a transformed output signal; and entropy coding quantized coefficients, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including the generated second transformed output signal and a second partial signal which is the remaining part of the first transformed output signal other than the first partial signal, and wherein, in the generating and outputting, at least one of (i) the first partial signal that is a target signal range for the second transform and (ii) the second transform coefficient is adaptively determined temporally or spatially.

    摘要翻译: 编码方法包括:变换输入信号; 量化变换的输出信号; 熵编码量化系数,其中所述变换包括:通过使用第一变换系数对所述输入信号执行第一变换来产生第一变换输出信号; 以及通过使用第二变换系数对作为所述第一变换输出信号的一部分的第一部分信号进行第二变换,并且输出包括所生成的第二变换输出信号的变换输出信号和产生第二变换输出信号,生成第二变换输出信号 第二部分信号,其是除了第一部分信号之外的第一变换输出信号的剩余部分,并且其中,在生成和输出中,以下中的至少一个:(i)作为第二部分信号的目标信号范围 变换和(ii)第二变换系数在时间或空间上自适应地确定。