An image coding using overlapped wavelet transform with permutation scan

Author

Hur, Tae Won ; Kim, Jeong Woo ; Kim, E. Sung ; Choi, Joong Han ; Lee, Keun Young

Author_Institution

Dept. of Electron. Eng., Sung Kyun Kwan Univ., Suwon, South Korea

fYear

1996

fDate

18-21 Nov 1996

Firstpage

14

Lastpage

17

Abstract

In this paper, an overlapped wavelet transform (OWT) with permutation scan is presented. This transform is compared to DCT, constructed from PR-QMF-filter banks and Haar basis. Also permutation scanning achieves compression through efficiently representing the positional information caused by ordering the data information. A block OWT-based permutation coding algorithm (OWTPC) is developed and compared to JPEG. This mutually beneficial characteristics reduces the coding bit-rate. Simulation results are obtained for standard image, showing improvement of 0.2-0.3 dB compared to JPEG in the peak-SNR index

Keywords

block codes; data compression; image coding; wavelet transforms; Haar basis; PR-QMF-filter bank; block OWT permutation coding algorithm; compression; data information; image coding; overlapped wavelet transform; permutation scan; positional information; Bandwidth; Discrete cosine transforms; Discrete wavelet transforms; Frequency domain analysis; Geometry; Image coding; Low pass filters; Signal resolution; Transform coding; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1996., IEEE Asia Pacific Conference on

Conference_Location

Seoul

Print_ISBN

0-7803-3702-6

Type

conf

DOI

10.1109/APCAS.1996.569207

Filename

569207