Title :
Design of reversible subband transforms using lifting
Author :
Adams, Michael D. ; Antoniou, Andreas
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
Presented is a simple yet highly effective method for designing a good reversible version of any linear subband transform. First, the lifting factorization is introduced as a means to generate many reversible versions of a particular transform. Next, a simple metric is described which predicts the accuracy with which a reversible transform can approximate its parent (linear) transform. This metric is then used as the basis for an iterative design technique. A design example is presented to demonstrate the effectiveness of the method
Keywords :
band-pass filters; filtering theory; iterative methods; matrix decomposition; quadrature mirror filters; transfer function matrices; wavelet transforms; PR-QMF filter banks; iterative design technique; lifting factorization; linear subband transform; matrix decomposition; reversible subband transforms; reversible transform; simple metric; wavelet transform; Accuracy; Arithmetic; Data compression; Design methodology; Filter bank; Finite impulse response filter; Matrix decomposition; Network synthesis; Process design; Quantization;
Conference_Titel :
Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-3905-3
DOI :
10.1109/PACRIM.1997.620004
