Wavelet packet methods for multimedia compression and encryption

Author

Pommer, Andreas ; Uhl, Andreas

Author_Institution

Dept. of Sci. Comput., Salzburg Univ., Austria

Volume

1

fYear

2001

fDate

2001

Firstpage

1

Abstract

We introduce a selective encryption scheme for visual data based on the wavelet packet representation where the structure of a randomly chosen non-stationary multi-resolution analyses (NSMRA) is encrypted only. Whereas the rate-distortion performance of the entire scheme is on an acceptable level we describe a heuristic to break the proposed scheme in linear time

Keywords

data compression; filtering theory; image coding; image reconstruction; image representation; image resolution; multimedia systems; rate distortion theory; transform coding; video coding; wavelet transforms; NSMRA; filter permutation; image reconstruction; multimedia compression; multimedia encryption; nonstationary multi-resolution analyses; rate-distortion Performance; selective encryption; video coding; visual data; wavelet packet methods; wavelet packet representation; Application software; Cryptography; Data security; Filters; Image coding; Rate-distortion; Streaming media; TV broadcasting; Video coding; Wavelet packets;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and signal Processing, 2001. PACRIM. 2001 IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-7080-5

Type

conf

DOI

10.1109/PACRIM.2001.953508

Filename

953508