Title :
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
fDate :
30 Aug.-2 Sept. 2004
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;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2004 IEEE Eighth International Symposium on
Print_ISBN :
0-7803-8408-3
DOI :
10.1109/ISSSTA.2004.1371829
