Performance evaluation of JPEG 2000-like data decomposition schemes in wavelet codec

Author

Przelaskowski, Artur

Author_Institution

Inst. of Radioelectron., Warsaw Univ. of Technol., Poland

Volume

3

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

788

Abstract

This paper deals with image data decomposition schemes applied in a wavelet coder according to the JPEG 2000 standard. The 2D subband decomposition and 1D reversible transformation are considered and optimized. Two wavelet codec realizations are applied: slightly modified SPIHT and verification model VM8.6 of JPEG 2000. Selected reversible transforms are evaluated and new effective ones are proposed. Additionally, new subband decomposition methods are tested in a context of standard schemes. Optimized wavelet data decomposition in a wavelet coder can increase an effectiveness of the basic mallat-5/3 transform algorithm even up to 1.5 dB of PSNR in lossy compression and up to 3% of bit rate in lossless compression

Keywords

data compression; image coding; transform coding; wavelet transforms; 1D reversible transformation; 2D subband decomposition; JPEG 2000 standard; PSNR; SPIHT; bit rate; image data decomposition; lossless compression; lossy compression; verification model VM8.6; wavelet codec; wavelet coder; Bit rate; Codecs; Encoding; Filter bank; Frequency; Image coding; Spatial resolution; Streaming media; Transform coding; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2001. Proceedings. 2001 International Conference on

Conference_Location

Thessaloniki

Print_ISBN

0-7803-6725-1

Type

conf

DOI

10.1109/ICIP.2001.958238

Filename

958238