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    题名: A practical design of digital video watermarking in H.264/AVC for content authentication
    作者: Su,PC;Wu,CS;Chen,IF;Wu,CY;Wu,YC
    贡献者: 資訊工程學系
    关键词: PERFORMANCE;IMAGES;DOMAIN
    日期: 2011
    上传时间: 2012-03-27 18:57:20 (UTC+8)
    出版者: 國立中央大學
    摘要: In this research, we propose a practical digital video watermarking scheme mainly used for authenticating the H.264/AVC compressed videos to ensure their correct content order. The watermark signals, which represent the serial numbers of video segments, are embedded into nonzero quantization indices of frames to achieve both the effectiveness of watermarking and the compact data size. The human visual characteristics are taken into account to guarantee the imperceptibility of watermark signals and to attain an efficient implementation in H.264/AVC. The issues of synchronized watermark detections are settled by selecting the shot-change frames for calculating the distortion-resilient hash, which helps to determine the watermark sequence. The experimental results demonstrate the feasibility of the proposed scheme as the embedded watermarks can survive the allowed transcoding processes while the edited segments in the tampered video can be located. (C) 2011 Elsevier B.V. All rights reserved.
    關聯: SIGNAL PROCESSING-IMAGE COMMUNICATION
    显示于类别:[資訊工程學系] 期刊論文

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