Very fast bit allocation algorithm, based on simplified R-D curve modeling

Author

Aminlou, Alireza ; Fatemi, Omid

Author_Institution

Dept. of Electr. & Comput. Eng., Tehran Univ., Iran

Volume

1

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

112

Abstract

In multimedia, specially web-based applications and mobile communication where images are used extremely, rate control method has significant role in image coder performance and computational complexity. We propose a very fast rate control algorithm suitable for JPEG2000 coder with less computational complexity which uses uniform exponential curve modeling. The simulation results show comparable performance with full search algorithm. However, using proposed refinement algorithm results in obtaining the optimum point.

Keywords

computational complexity; image coding; rate distortion theory; transform coding; wavelet transforms; JPEG2000 coder; Lagrange multiplier; computational complexity; fast bit allocation algorithm; full search algorithm; image coder performance; multimedia data; rate control method; simplified R-D curve modeling; uniform exponential curve modeling; wavelet-based coding; Bit rate; Code standards; Communication system control; Computational complexity; Discrete wavelet transforms; Image coding; Image storage; Partitioning algorithms; Quantization; Tiles;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International Conference on

Print_ISBN

0-7803-8163-7

Type

conf

DOI

10.1109/ICECS.2003.1301989

Filename

1301989