Bit error rate in digital watermarking systems using spread spectrum techniques

Author

Jitsumatsu, Yutaka ; Hattori, Yosuke ; Khan, Tahir Abbas ; Kohda, Tohru

Author_Institution

Kyushu Univ., Fukuoka, Japan

fYear

2004

fDate

30 Aug.-2 Sept. 2004

Firstpage

890

Lastpage

893

Abstract

In spread spectrum (SS)-based digital watermarking systems, watermark information is spread by a pseudorandom code and added to the original information signal. On the other hand, we have proposed another watermarking system having one watermark channel and several image transmission channels. Information data is modulated by SS codes with variable code length according to its significance. This paper inspects bit error rate of such a watermarking system for both watermark channel and image transmission channels.

Keywords

error statistics; modulation coding; random codes; spread spectrum communication; variable length codes; visual communication; watermarking; SS code modulation; bit error rate; digital watermarking systems; image transmission channels; pseudorandom code; spread spectrum techniques; variable code length; Additive noise; Bit error rate; Color; Discrete cosine transforms; Error analysis; Image communication; Information security; Multiaccess communication; Spread spectrum communication; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2004 IEEE Eighth International Symposium on

Print_ISBN

0-7803-8408-3

Type

conf

DOI

10.1109/ISSSTA.2004.1371829

Filename

1371829