Digital affine shear filter banks with 2-layer structure
Zhihua Che, Xiaosheng Zhuang · 2017
Affine shear tight frames with 2-layer structure are introduced. Characterizations and constructions of smooth affine shear tight frames with 2-layer structure are provided. Digital affine shear banks with 2-layer structure are then constructed. The implementation of digital affine shear transforms using the transition and subdivision operators are given. Numerical experiments on image denoising demonstrate the advantage of our digital affine shear filter banks with 2-layer structure.