自1999年起，由Napster所引發的對等式網路運算架構(Peer to Peer Computing Architecture)風暴襲捲整個資訊界，許多的對等式網路(Peer to Peer; P2P)檔案分享軟體及研究專案如雨後春筍冒出，使得各種數位資料的分享及傳播變得更加容易。然而綜觀現有的P2P應用軟體，僅提供簡單的檔案名稱搜尋方式，必然無法滿足P2P使用者找尋多媒體檔案的需求。
因此，本文針對P2P架構上對於影像資料的搜尋需求，提出一個適用於P2P架構的可調適性的影像資料模型(adaptive image data model)為建立影像描述的核心，並結合以內容為基礎之影像檢索方法(Content-Based Image Retrieval; CBIR)的概念與技術,來設計一套應用於P2P的影像註解及擷取方法和系統架構。希望我們所提出的想法及架構，能夠改善目前P2P應用軟體基於關鍵字的搜尋方式之不足，有效地提昇P2P使用者搜尋影像時的命中率。

Since 1999, the P2P (Peer to Peer) Computing Architecture became one of the buzzwords that arose from Napster of the whole IT industry. Many P2P file sharing software and research projects have mushroomed and made the sharing and distribution of various digital data easier. However, only the simple search mechanism based on file name supplied by existing P2P applications is never enough while P2P users search for the multimedia data they want.
We aim at the image data search on P2P architecture, and propose an adaptive image data model that is the core of the establishment of image descriptions. We also integrate the concept and techniques of CBIR (Content-Based Image Retrieval) to design the mechanism and system architecture for image annotation and retrieval on P2P model.
We expect to improve the shortcoming of existing keyword-based search by the idea and architecture proposed here, and improve the hit rate of P2P image search.

摘要…………………………………………………………………………………………………i
目錄………………………………………………………………………………………………iii
圖目錄………………………………………………………………………………………………v
表目錄……………………………………………………………………………………………vii
第一章導論……………………………………………………………………………………1
1.1概論……………………………………………………………………………………1
1.2研究動機與目的………………………………………………………………………2
1.3論文章節介紹…………………………………………………………………………3
第二章背景知識與相關研究…………………………………………………………………4
2.1以內容為基礎之影像檢索……………………………………………………………4
2.1.1影像資料模型之建構…………………………………………………………………5
2.1.2查詢之表述方式………………………………………………………………………7
2.1.3國內外相關研究………………………………………………………………………8
2.2對等式網路運算架構…………………………………………………………………10
2.2.1P2P之網路架構………………………………………………………………………10
2.2.2淺談P2P………………………………………………………………………………13
2.2.3P2P亟待克服的挑戰與議題…………………………………………………………14
第三章系統分析與設計………………………………………………………………………15
3.1問題分析與定義………………………………………………………………………15
3.2模組化影像資料模型…………………………………………………………………16
3.3使用案例觀點…………………………………………………………………………23
3.4系統架構………………………………………………………………………………24
3.5系統模組設計…………………………………………………………………………26
3.5.1載入模組設計…………………………………………………………………………28
3.5.2瀏覽模組設計…………………………………………………………………………29
3.5.3註釋模組設計…………………………………………………………………………31
3.5.4檢索模組設計…………………………………………………………………………39
3.5.5比對模組設計…………………………………………………………………………42
3.5.6P2P運算模組設計……………………………………………………………………44
第四章系統實作與評估………………………………………………………………………46
4.1系統環境與開發工具…………………………………………………………………46
4.2查詢表述方式與比對流程……………………………………………………………47
4.3顏色特徵之建立與相似度評量………………………………………………………49
4.4系統評估………………………………………………………………………………50
4.4.1可調適性評估…………………………………………………………………………50
4.4.2檢索準確率評估………………………………………………………………………58
第五章結論與未來展望………………………………………………………………………61
5.1問題與討論……………………………………………………………………………61
5.2結論……………………………………………………………………………………62
5.3未來展望………………………………………………………………………………63
致謝………………………………………………………………………………………………64
參考文獻…………………………………………………………………………………………65
附錄A　使用案例文字描述………………………………………………………………………68
附錄B　系統操作流程與介面展示………………………………………………………………77
附錄C　影像資料模型之XML綱要表示…………………………………………………………97
附錄D　影像檢索準確率評估實驗數據………………………………………………………102

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