정보통신설비학회논문지 (Journal of The Institute of Information and Telecommunication Facilities Engineering)
- 제10권2호
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- Pages.46-52
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- 2011
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- 1598-6586(pISSN)
선택적 블록 삽입을 통한 H.264/AVC에서의 비디오 워터마킹 방법
Video Watermarking Scheme on H.264/AVC using Selective Block Embedding
- 투고 : 2011.03.02
- 심사 : 2011.06.24
- 발행 : 2011.06.30
초록
This paper presents adaptive spread-spectrum watermarking scheme on the H.264/AVC video. The H.264/AVC has become popular video coding since it's compression performance has been improved greatly. That is why there is not enough space for embedding watermark using the spread-spectrum method. To overcome this problem, we propose selective block embedding scheme. The blocks which don't contain non-zero DCT (Discrete Cosine Transform) coefficients are selected by value. So we have enough space to embed watermarks. Experimental result shows that proposed scheme improves recovery rates of watermark about 12% and reduces distortion of watermarked video.