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Adaptive Watermarking Method using Watermark Detection Rate  

An, Il-Young (서정대학 인터넷정보과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.5, no.5, 2010 , pp. 465-470 More about this Journal
This paper proposes an adaptive video watermarking algorithm according to bit detection rate of watermark in MPEG2 system. The watermark strength is adaptively applied as BER(bit error rate) of watermark extracted from decoded frame for motion compensation. Watermark insertion uses a frequency spread spectrum method. A realtime watermark extraction is done directly in the DCT domain during MPEG decoding. The experimental simulations show that PSNR(peak signal to noise ratio) results 31.5dB for a fixed watermark strength and 33.dB for an adaptive watermark strength. Also average BER is 0.126 and less than 0.2 avaliable value.
Watermarking; MPEG2; Video Watermarking; Information Hiding;
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