Optimal ladder-based biorthogonal coder

Author

Phoong, See-May ; Lin, Yuan-Pei

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

3

fYear

1999

fDate

15-19 Mar 1999

Firstpage

1409

Abstract

A novel minimum noise structure is introduced for ladder-based biorthogonal filter banks. The proposed minimum noise ladder-based biorthogonal (MINLAB) coder ensures that the noise gain of the quantizers is unity, even though the system is not orthonormal. The coding gain of the optimal MINLAB coder is always greater than unity. For both the AR(1) and MA(1) processes, the MINLAB coder with 2 taps outperforms the optimal orthonormal coders of any number of taps. In addition to its superior coding performance, the optimal biorthogonal coder has a very low design and implementational cost. Moreover the proposed coder enjoys many advantages that make it an attractive choice for lossy/lossless data compression

Keywords

autoregressive processes; channel bank filters; circuit optimisation; data compression; encoding; filtering theory; ladder filters; quantisation (signal); AR(1) process; MA(1) process; coding performance; ladder-based biorthogonal filter banks; lossless data compression; lossy data compression; low design cost; low implementation cost; minimum noise ladder-based biorthogonal coder; minimum noise structure; noise gain; optimal MINLAB coder; optimal ladder-based biorthogonal coder; optimal orthonormal coders; quantizers; subband coder; Additive noise; Biomedical imaging; Bit rate; Cost function; Data compression; Filter bank; Finite impulse response filter; Image coding; Image reconstruction; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.756245

Filename

756245