ADPCM encoding of images using a conjugate gradient based adaptive algorithm

Author

Joo, Kyung Sub ; Gschwind, Douglas Ray ; Bose, Tamal

Author_Institution

Dept. of Electr. Eng., Colorado Univ., Denver, CO, USA

Volume

4

fYear

1996

fDate

7-10 May 1996

Firstpage

1942

Abstract

A new recursive conjugate gradient (RCG) algorithm is developed for two-dimensional (2-D) adaptive differential pulse code modulation (ADPCM). This algorithm is based on the conjugate gradient method of optimization and therefore has a fast convergence characteristic. The RCG operates on samples of data rather than blocks, and is computationally simpler than the recursive least square (RLS) algorithm. Simulation results illustrate the efficiency of the method in ADPCM encoding of images

Keywords

adaptive signal processing; conjugate gradient methods; convergence of numerical methods; differential pulse code modulation; image coding; image sampling; modulation coding; optimisation; 2D adaptive differential pulse code modulation; ADPCM encoding; conjugate gradient based adaptive algorithm; conjugate gradient method; data samples; fast convergence characteristic; image coding; optimization; recursive conjugate gradient algorithm; simulation results; Computational modeling; Convergence; Gradient methods; Image coding; Least squares methods; Modulation coding; Optimization methods; Pulse modulation; Resonance light scattering; Two dimensional displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.544832

Filename

544832