Title :
MPEG-2 standard system: A new blind watermarking approach using spread spectrum method
Author :
Mahdipour, Hadi ; Salehinejad, Hojjat ; Talebi, Siamak
Author_Institution :
Dept. of Electr. Eng., Shahid Bahonar Univ. of Kerman, Kerman
Abstract :
In this paper, a new method for blind watermarking in MPEG-2 standard video system is proposed. In this method, Walsh codes are used for coding watermark bits in spread spectrum. The watermark information vector (WIV) is obtained by applying DCT on the coded watermark bits. The watermarked video is transmitted with a few alternations in comparison of the host video. Therefore, the peak signal to noise ratio (PSNR), influenced by watermarking, is high in this method. Simulation results express reasonable resistance versus most of typical attacks and bit rate has a trivial increment in this method.
Keywords :
Walsh functions; spread spectrum communication; watermarking; DCT; MPEG-2 standard system; Walsh codes; bit rate; blind watermarking approach; peak signal to noise ratio; spread spectrum method; video system; watermark information vector; Cryptography; Data mining; Discrete Fourier transforms; Discrete cosine transforms; Discrete wavelet transforms; PSNR; Spread spectrum communication; Telecommunication standards; Video compression; Watermarking;
Conference_Titel :
Telecommunications, 2008. IST 2008. International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4244-2750-5
Electronic_ISBN :
978-1-4244-2751-2
DOI :
10.1109/ISTEL.2008.4651394
