Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data

作者: Scott A. Moskowitz

DOI:

关键词:

摘要: Disclosed herein are methods and systems for encoding digital watermarks into content signals. Also disclosed detecting and/or verifying in According to one embodiment, a system of watermark information includes: window identifier identifying sample the signal; an interval calculator determining quantization window; sampler normalizing provide normalized samples. another pre-analyzing signal at least using filter is disclosed. method comprises: (1) providing (2) be applied (3) area that will affected by based on measurable difference between counterpart selected from group consisting as transmitted, stored medium, played backed. includes steps splitting bit stream; half stream inverted instances stream. Other encoding/decoding also

参考文章(422)
Balas K. Natarajan, Watermarking of digital object ,(1997)
M. Schneider, Shih-Fu Chang, A robust content based digital signature for image authentication international conference on image processing. ,vol. 3, pp. 227- 230 ,(1996) , 10.1109/ICIP.1996.560425
Jeffrey B. Lotspiech, George Gregory Gruse, Edgar Downs, Christopher T. Lehman, Kenneth Louis Milsted, Marco M. Hurtado, Electronic content delivery system ,(1998)
I.J. Cox, J. Kilian, F.T. Leighton, T. Shamoon, Secure spread spectrum watermarking for multimedia IEEE Transactions on Image Processing. ,vol. 6, pp. 1673- 1687 ,(1997) , 10.1109/83.650120
Babak Tehranchi, Rade Petrovic, Douglas Wong, Joseph M. Winograd, Pre-processed information embedding system ,(2005)