Method For the Encoding of Wavelet-Encoded Images With Bit Rate Control, Corresponding Encoding Device and Computer Program
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    发明申请
    Method For the Encoding of Wavelet-Encoded Images With Bit Rate Control, Corresponding Encoding Device and Computer Program 审中-公开
    使用比特率控制编码小波编码图像的方法,相应的编码设备和计算机程序

    公开(公告)号:US20080240251A1

    公开(公告)日:2008-10-02

    申请号:US11791134

    申请日:2005-11-07

    IPC分类号: H04B1/66

    摘要: The disclosure relates to a method of coding at least one still or animated image, in which said image is associated with (i) a basic mesh formed by a set of faces that are defined by a set of vertices and edges and (ii) coefficients in a base of wavelets corresponding to local modifications to the basic mesh, known as wavelet coefficients, wherein the coded data rate is controlled. The method includes the following steps: controlling a first rate of data representative of a basic mesh that meets a first rate criterion; controlling a second rate of data representative of wavelet coefficients according to a second rate criterion; and finally optimizing the coded data rate by controlling the quantification characteristics of the selected wavelet coefficients.

    摘要翻译: 本公开涉及一种编码至少一个静止图像或动画图像的方法,其中所述图像与(i)由一组顶点和边缘定义的一组面部形成的基本网格相关联,以及(ii)系数 在对应于对基本网格的局部修改的小波基础中,称为小波系数,其中控制编码数据速率。 该方法包括以下步骤:控制表示满足第一速率准则的基本网格的第一数据速率; 根据第二速率标准控制代表小波系数的第二数据速率; 最后通过控制所选小波系数的量化特征来优化编码数据速率。