A new approach to recursive mirror filters with a special application in subband coding of images

Author

Kronander, Torbjörn

Author_Institution

Dept. of Electr. Eng., Linkoping Univ., Sweden

Volume

36

Issue

9

fYear

1988

fDate

9/1/1988 12:00:00 AM

Firstpage

1496

Lastpage

1500

Abstract

A novel method for applying recursive mirror filters (RMF) in applications where infinite delay can be tolerated is presented. This type of situation can be found in several circumstances, but the method has its main applications in a technique of subband coding of images which was presented by J.W. Woods and S.D. O´Neill (ibid., vol.ASSP-34, p.1278-88, Oct. 1986). In image coding, a delay is only a shift in a spatial coordinate. The present method has looser filter constraints than previous recursive quadrature mirror filter (QMF) techniques, but may in certain applications require a large memory. Contrary to earlier recursive-QMF techniques, this approach leads to a linear phase characteristic, a property that is vital in image coding

Keywords

encoding; filtering and prediction theory; filters; picture processing; image coding; linear phase characteristic; recursive mirror filters; subband coding; Acoustic applications; Acoustic signal processing; Finite impulse response filter; Frequency conversion; Image coding; Mirrors; Multidimensional signal processing; Multidimensional systems; Speech coding; Speech processing;

fLanguage

English

Journal_Title

Acoustics, Speech and Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

0096-3518

Type

jour

DOI

10.1109/29.90377

Filename

90377