Bit allocation algorithm in JPEG2000 based on wavelet transform

Author

Xin-lin Huang ; Gang Wang ; Ying-xin Yu ; Ke-wei Gong ; Chun-gang Liu

Author_Institution

Commun. Res. Center, Harbin Inst. of Technol., Harbin

fYear

2008

fDate

10-12 Dec. 2008

Firstpage

1

Lastpage

3

Abstract

This paper presents a new bit allocation strategy in JPEG2000.Every distortion value which is introduced by sub-band transmission is calculated using wavelet transform. It will obtain the ratio of every sub-bandpsilas distortion in order to determine the bits allocated to each sub-band. Simulation results show that, in the same compression rate, PSNR of the receiver reconstructed image of the proposed scheme achieves at least 0.5 dB gain over the bit allocation of the convex rate-distortion curve.

Keywords

curve fitting; data compression; image coding; image reconstruction; rate distortion theory; wavelet transforms; JPEG2000; bit allocation algorithm; image reconstruction; rate distortion curve shape; sub-band transmission; wavelet transform; Bit rate; Digital images; Distortion measurement; Image coding; Image reconstruction; Image storage; Rate-distortion; Streaming media; Wavelet coefficients; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems and Control in Aerospace and Astronautics, 2008. ISSCAA 2008. 2nd International Symposium on

Conference_Location

Shenzhen

Print_ISBN

978-1-4244-3908-9

Electronic_ISBN

978-1-4244-2386-6

Type

conf

DOI

10.1109/ISSCAA.2008.4776181

Filename

4776181