DocumentCode
2431452
Title
Gain scaling for multirate filter banks
Author
Brislawn, Christopher M.
Author_Institution
Comput., Comput. & Stat. Sci. Div., Los Alamos Nat. Lab., Los Alamos, NM, USA
fYear
2009
fDate
1-4 Nov. 2009
Firstpage
437
Lastpage
441
Abstract
Eliminating two trivial degrees of freedom corresponding to the lowpass DC response and the highpass Nyquist response in a two-channel multirate filter bank seems simple enough. Nonetheless, the ISO/IEC JPEG 2000 image coding standard manages to make this mundane task look totally mysterious. We reveal the true meaning behind JPEG 2000´s arcane specifications for filter bank normalization and point out how the seemingly trivial matter of gain scaling leads to highly nontrivial issues concerning uniqueness of lifting factorizations.
Keywords
channel bank filters; high-pass filters; image coding; low-pass filters; JPEG 2000 image coding standard; filter bank normalization; gain scaling; highpass Nyquist response; lifting factorizations; lowpass DC response; two-channel multirate filter banks; Arithmetic; Channel bank filters; Electronic mail; Filter bank; Finite impulse response filter; IEC standards; ISO standards; Image coding; Laboratories; Matrix decomposition;
fLanguage
English
Publisher
ieee
Conference_Titel
Signals, Systems and Computers, 2009 Conference Record of the Forty-Third Asilomar Conference on
Conference_Location
Pacific Grove, CA
ISSN
1058-6393
Print_ISBN
978-1-4244-5825-7
Type
conf
DOI
10.1109/ACSSC.2009.5469853
Filename
5469853
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