臺灣博碩士論文加值系統

保護著作權的首要課題，就是原創作者如何去證明某項數位資料的全部或其一部份確實為其所創作。而最直接的作法就是將作者的電子簽章做為浮水印嵌入其創作裡，若發生版權爭議時，創作者可將浮水印取出，用以證明此媒體的所有權。近年來由於虛擬實境技術的諸多應用已逐漸扮演舉足輕重的角色，因此3D模型浮水印技術也越來越受到重視，由於此種媒體具有拓樸結構的特性，若在嵌入浮水印時無法保證3D模型其拓樸結構，結果不但是拓樸結構的破壞，同時也代表浮水印不具備重要的透通性，衍生出新的數位媒體在加入浮水印時所產生的問題。因此，我們利用模型的骨幹點資訊來記錄3D模型的拓樸結構，使得在嵌入浮水印的過程中可以檢測其影響程度，以保證模型在嵌入浮水印後的透通性。

關鍵詞：智慧財產權保護、數位浮水印、透通性、計算機圖學

摘　要 I
ABSTRACT II
目 錄 III
圖 目 錄 V
第一章 緒論 1
1.1 浮水印技術簡介 1
1.2 3D 模型的浮水印嵌入與取出 3
1.3 浮水印應具備之特性 5
1.4 內容概述 7
第二章 文獻探討 9
2.1 3D模型浮水印簡介 9

2.1.1 2D影像浮水印技術與3D模型浮水印技術比較 9
2.1.2 3D模型浮水印分類 11
2.1.3 空間域的浮水印技術 13
2.1.4 頻率域的浮水印技術 14
2.2 模型與影像品質檢測工具 17
第三章 利用骨幹點資訊對浮水印做透通性檢測 21
3.1 浮水印之透通性檢測方法 22
3.2 建構3D模型骨幹 24
3.3 利用骨幹點將模型頂點分群 27
3.4 區域間的碰撞偵測 30
3.5 發生拓樸結構破壞處理方法 33

3.5.1 空間域處理方法 34
3.5.2 頻率域處理方法 34
第四章 實驗結果 36
第五章 結論與未來目標 41
參考文獻 43

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