Ladder realizations of fast subband/VQ coders with diamond support for color images

Author

Van Dyck, R.E. ; Marshall, T.G., Jr.

Author_Institution

Center for Comput. Aids for Ind. Productivity, Rutgers Univ., Piscataway, NJ, USA

fYear

1993

fDate

3-6 May 1993

Firstpage

667

Abstract

A ladder implementation of a subband/vector quantization (VQ) coder is presented. The ladder realization significantly reduces the number of computations required to achieve the desired decomposition, compared to the separable system presented by R.E. Van Dyck and S.A. Rajala (see Proc. IEEE Visual Sig. Proc. Conf., p. 235-240, 1992). In this system, the low-pass subimage has a diamond orientation in order to more closely match the orientation of the human visual system. The reduction in computations is given, and coding results for color images are presented for different color spaces

Keywords

colour graphics; filtering theory; image coding; ladder filters; quadrature mirror filters; two-dimensional digital filters; vector quantisation; color images; diamond orientation; fast subband/VQ coders; ladder implementation; low-pass subimage; vector quantization; Color; Computer industry; Digital filters; Frequency domain analysis; Humans; Image coding; Mirrors; Productivity; Signal synthesis; Visual system;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on

Conference_Location

Chicago, IL

Print_ISBN

0-7803-1281-3

Type

conf

DOI

10.1109/ISCAS.1993.393809

Filename

393809