Since 2-band interpolating wavelet transform has the advantage that waveletseries transform coefficient is same as binary uniform samples in multiresolutionsubspace, Prefilter operator of signal in some scaling space is simplified to one.

• 由于 2 带插值子波变换具有多分辨子空间信号的子波级数变换(WST)系数与其 2 进均匀采样点的值严格一致的优点，因此，使在某个尺度空间上的信号的预滤波算子简化为 1，这时，变换域中的系数是真实的对应层的子波系数，反映了原信号的特性。