Automated design of two-dimensional rational decimation systems

Author

Evans, Brian L. ; Teich, Jürgen ; Schwarz, Christian

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA

Volume

1

fYear

1994

fDate

31 Oct-2 Nov 1994

Firstpage

498

Abstract

The paper gives an automated procedure to design rational decimation compression systems that resample two-dimensional bandpass signals at their Nyquist rates. Our procedure takes a sketch of the desired bandpass shape in the frequency domain, circumscribes it with a parallelogram of minimal area, and linearly maps the minimal enclosing parallelogram onto one period of the frequency domain. From the rational matrix that performs the linear mapping, we compute the parameters of the upsampler, filter, and downsampler in the compression system. The compression system only has linear components

Keywords

data compression; filtering theory; frequency-domain analysis; signal sampling; Nyquist rates; automated design; automated procedure; bandpass shape; downsampler; filter; frequency domain; linear components; linear mapping; minimal area parallelogram; minimal enclosing parallelogram; rational decimation compression systems; rational matrix; resampling; two-dimensional bandpass signals; two-dimensional rational decimation systems; upsampler; Band pass filters; Computer science; Contracts; Frequency domain analysis; Graphics; Image coding; Nonlinear filters; Sampling methods; Shape; Signal design;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

0-8186-6405-3

Type

conf

DOI

10.1109/ACSSC.1994.471503

Filename

471503