Title :
Research on the MPEG-2 Video Watermarking Scheme Based on Spread Spectrum Technology
Author_Institution :
Dept. of Math. & Comput., Shangrao Normal Univ., Shangrao
Abstract :
Digital watermarking is an effective technology for digital products copyright protection and data security maintenance as well as an important branch of information hiding technology. A kind of MPEG-2 video watermarking scheme based on spread spectrum technology is introduced in this paper. First starting with MPEG-2 compressed video standard and then the algorithm principle of video watermarking is given, after video streams are partly decoded, the watermarking information modulated by m sequence is embedded into the direct current coefficients of chroma DCT of video I frame. Because of partly decoding, the computational complexity of complete decoding and recoding is reduced and watermark embedding speed is increased, finally, the concrete video watermarking implementation scheme is proposed from watermark embedding and extraction.
Keywords :
computational complexity; data compression; decoding; discrete cosine transforms; m-sequences; modulation coding; video coding; video streaming; watermarking; MPEG-2 compressed video standard; MPEG-2 video watermarking scheme; chroma discrete cosine transform; computational complexity; data security maintenance; decoding; digital product copyright protection; m-sequence; spread spectrum technology; video stream; watermarking information modulation; Computational complexity; Copyright protection; Data security; Decoding; Discrete cosine transforms; Spread spectrum communication; Streaming media; Transform coding; Video compression; Watermarking; DCT; MPEG-2; spread spectrum; watermark embedding;
Conference_Titel :
Computer Engineering and Technology, 2009. ICCET '09. International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3334-6
DOI :
10.1109/ICCET.2009.241
