New Lifting Based Structure for Undecimated Wavelet Transform

Abstract

This letter introduces a new structure for the undecimated wavelet transform (UWT). This structure combines the stationary wavelet transform with a lifting scheme and its design is based on a polyphase structure. The suggested structure inherits the simplicity of the lifting scheme, such that the inverse transform is easily implemented. The proposed UWT's performance is verified on a signal denoising application.