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Biorthogonal Wavelets of Maximum Coding Gain through Pseudoframes for Subspaces

机译:通过伪帧获得子空间的最大编码增益的双正交小波

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摘要

A method for designing a signal-adapted, two-channel biorthogonal wavelet filter bank that maximizes coding gain is presented using the technique of Pseudoframes for Subspaces (PFFS). At the same time the PFFS model is able to incorporate the requirements of regularity and perfect reconstruction into this design. The coding gain achieved for AR(2) signals can result in a reduction in bit rate of more than 0.66 bits per sample as compared to traditional biorthogonal wavelet filter banks of the same length. The ability for PFFS to combine all of these design elements using an unconstrained optimization parameter makes pursuing this technique worthwhile.
机译:利用子空间伪帧(PFFS)技术,提出了一种用于设计一种信号自适应,两通道双正交小波滤波器组的方法,该滤波器组可最大化编码增益。同时,PFFS模型能够将规律性和完美重构的要求纳入该设计中。与相同长度的传统双正交小波滤波器组相比,AR(2)信号获得的编码增益可导致每个样本的比特率降低超过0.66位。 PFFS使用不受约束的优化参数来组合所有这些设计元素的能力使追求这种技术值得。

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