基於人類視覺系統之H.264視訊展頻浮水印系統

A spread spectrum watermarking scheme of H.264 video based on human visual system

張美雀(Mei-Chueh Chang)

指導教授 ： 顏淑惠

淡江大學/工學院/資訊工程學系碩士在職專班/碩士(2008年)

https://doi.org/10.6846/TKU.2008.00226

摘要

有鑑於數位科技的進步與多媒體產品的普遍，為了達到智慧財產權保護的目的，本論文提出一個展頻且配合人類視覺感官系統的視訊浮水印技術以兼顧浮水印的強健度與透明性。我們設計一個浮水印嵌入遮罩M，結合Watson’s 人類視覺系統，將浮水印嵌入於I-frame 4x4 DCT的AC係數。同時，我們也提出一個機制以抵擋畫面刪除、調換、複製等可能攻擊。

關鍵字

視訊浮水印 ； 展頻 ； 人類視覺感官系統 ； H.264

並列摘要

As an effective method for copyright protection and content integrity verification of intellectual property, digital watermarking has become a very active area in the field of multimedia security. We propose a watermarking scheme of H.264 based on Watson’s human visual system. A 4x4 DCT mask combining Watson’s human visual system on DCT will be designed. Using the mask, a spread spectrum watermarking scheme is given to embed the watermark on AC coefficients of 4x4 DCT blocks. And it provides a way to classify 4x4 DCT blocks into edge, textured, or smooth-blocks, and it also is a reference for watermark embedding strength. We also propose a method to resist the frame dropping, reversing, duplicating attacks.

並列關鍵字

video watermarking ； spread spectrum ； human visual system (HVS) ； H.264

參考文獻

Proceedings of SPIE - The International Society for Optical Engineering 5960

Ogihara,”Correlation-Based Video Watermarking Method Using Inter-Frame

20, pp. 624–642, 2005

watermarking for real-time MPEG videos,” Applied Mathematics and

Collusion-Resistant Digital Video Watermarking,” IEEE Transactions on