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研究生(外文):Man-Fong Cheng
論文名稱(外文):Identifying Lapita Motifs Based on Pattern Recognition Technology
中文關鍵詞:科技考古考古紋飾辨識Lapita 裝飾單元分類Lapita文化考古碎片拼接
外文關鍵詞:Archaeological ScienceArchaeological Pattern RecognitionLapita Unit ClassificationLapita CultureArchaeological Fragment Reconstruction
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系統流程分為三個部分,首先進行影像前處理與裝飾單元分割,接著以形狀上下文(shape context)與線條數統計量來表示圖像特徵,最後計算裝飾單元類別相似度,並給予使用者推薦類別之排序。實驗測試樣本包含了24類裝飾單元,分別以260個測試樣本進行分類,其辨識率高達99.6%,而平均每個單元處理時間為47.48毫秒。此外,當加入本研究之單元辨識結果當作陶片拼接特徵,可成功提升拼接色彩已消逝的Lapita考古碎片之效能。在本研究中,開發了首個 Lapita紋路單元辨識系統,其可有效減少考古工作流程的人力成本,並提升效率與效能。

Recently, researchers have shown an increasing interest in archaeological science, which strives for using information technology to assist analysis of historical remains. Previous research in archaeological pottery has concentrated on shape features of pottery shreds. However, there has been little discussion about the patterns on this topic. Patterns contain cultural meaning and uniqueness, which can both improve the efficiency of archaeological metadata analysis and the accuracy of shreds assembly. In this thesis, we have developed a system of unit recognition for pattern from the Lapita pottery, which is based on the standard of Lapita motif coding.
There are three steps in the process of our system. First stages comprise image preprocessing and unit segmentation. Then, shape context and histogram of stroke count features are then conducted to extract features from units. Eventually, units were ranked in a recommended sequence for user selection. The evaluation of unit recognition was assessed from the classification of 260-sampled units into 24 categories and the accuracy is 99.6% for the top-1 recommendation. And the average process time for each unit is 47.48 milliseconds. In addition, the effectiveness of reconstructing Lapita fragments was enhanced while adding our unit recognition results to reconstruct color-faded pottery fragments. In conclusion, the first Lapita unit recognition system is developed in this thesis, which facilitates the archaeological process by its high efficiency and effectiveness.

口試委員會審定書 i
致謝 ii
摘要 iii
論文目錄 v
圖目錄 vii
表目錄 ix
第一章、緒論 1
1.1 研究背景與目的 1
1.2 相關研究 3
1.2.1 考古拼接系統 4
1.2.2 Lapita文化與紋飾記載規範 5
1.2.3 Lapita陶片的考古資訊化沿革 8
1.2.4 考古陶片紋理分類文章 9
1.3 系統架構 11
第二章、影像前處理 13
2.1 影像分割 14
2.1.1 裝飾單位擷取機制 14
2.1.2 紋路萃取 17
2.2 影像形態分析 19
第三章、特徵擷取 23
3.1 形狀上下文描述子 24
3.2 線條數統計量特徵 26
第四章、推薦排序 30
第五章、實驗結果與討論 33
5.1 單位辨識實驗 33
5.2 拼接系統與紋飾辨識特徵 36
第六章、結論與未來展望 39
參考文獻 41
附錄一 45

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