关于提升系数的确定与滤波的构造

On the Determination of Lifting Coefficients and the Construction of Filters

研究双正交滤波与其多相矩阵之间的关系，证明滤波多相矩阵的三角分解对应于滤波的提升和对偶提升的定理，井用之构造双正交滤波和正交滤波．

The relation between the lifting coefficients and the polyphase matrix for the biorthogonal filters is studied. A theorem that the triangular decomposition for filters corresponding to the lifting and dual-lifting of them is proved, and by which orthogonal and biorthogonal filters are constructed respectively.