English  |  正體中文  |  简体中文  |  Items with full text/Total items : 60868/93650 (65%)
Visitors : 1147969      Online Users : 20
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/35264

    Title: 基於人類視覺系統之H.264視訊展頻浮水印系統
    Other Titles: A spread spectrum watermarking scheme of H.264 video based on human visual system
    Authors: 張美雀;Chang, Mei-chueh
    Contributors: 淡江大學資訊工程學系碩士在職專班
    顏淑惠;Yen, Shew-huey
    Keywords: 視訊浮水印;展頻;人類視覺感官系統;video watermarking;spread spectrum;human visual system (HVS);H.264
    Date: 2008
    Issue Date: 2010-01-11 06:16:49 (UTC+8)
    Abstract: 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。
    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.
    Appears in Collections:[Graduate Institute & Department of Computer Science and Information Engineering] Thesis

    Files in This Item:

    File SizeFormat

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback