Title :
Multiple watermarking: is power sharing better than time sharing?
Author :
Liu, Yi-Wen ; Smith, Julius O.
Author_Institution :
Center for Comput. Res. in Music & Acoust., Stanford, CA, USA
Abstract :
Writing on dirty paper, a mathematical model for watermarking, is examined and extended to allow simultaneous watermarking at multiple rates. Based on the extended model, it is argued that the optimal watermarking strategy is to share the power. The argument is further supported by simulations of joint spread spectrum and quantization watermarking.
Keywords :
data encapsulation; information theory; watermarking; data hiding; information theory; joint spread spectrum/quantization watermarking; multiple watermarking; simultaneous multiple rate watermarking; watermarking power sharing; Broadcasting; Copyright protection; Data encapsulation; Decoding; Interference; Payloads; Power system modeling; Robustness; Time sharing computer systems; Watermarking;
Conference_Titel :
Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on
Print_ISBN :
0-7803-8603-5
DOI :
10.1109/ICME.2004.1394640
