NDLI: A class of regular biorthogonal linear-phase filterbanks: theory, structure, and application in image coding

Content Provider	IEEE Xplore Digital Library
Author	Oraintara, S. Tran, T.D. Nguyen, T.Q.
Copyright Year	1991
Abstract	This paper discusses a method of regularity imposition onto biorthogonal linear-phase M-band filterbanks using the lattice structure. A lifting structure is proposed for lattice matrix parameterization where regularity constraints can be imposed. The paper focuses on cases with analysis and synthesis filterbanks having up to two degrees of regularity. Necessary and sufficient conditions for regular filterbanks in terms of the filter impulse response, frequency response, scaling function, and wavelets are revisited and are derived in terms of the lattice matrices. This also leads to a constraint on the minimum filter length. Presented design examples are optimized for the purpose of image coding, i.e., the main objectives are coding gain and frequency selectivity. Simulation results from an image coding application also show that these transforms yield improvement in the perceptual quality in the reconstruction images. The approach has also been extended to the case of integer/rational lifting coefficients, which are desirable in many practical applications.
Sponsorship	IEEE Signal Processing Society
Starting Page	3220
Ending Page	3235
Page Count	16
File Size	2245256
File Format	PDF
ISSN	1053587X
Volume Number	51
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filtering theory Image coding Lattices Filters Image reconstruction Transform coding Discrete cosine transforms Wavelet transforms Video compression Frequency domain analysis
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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