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高階相關法在圖形及表格處理上的應用 徐進良、劉仁俊

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高階相關法在圖形及表格處理上的應用 徐進良、劉仁俊

E-mail: 8809423@mail.dyu.edu.tw

摘 要

本論文是針對傳統高階相關法則的基礎原理來做推廣應用。高階相關法原用於三度空間中的點目標偵測,方法是以遞迴的 方式來計算連續資料間的時空相關性,以擷取二元影像中的軌跡資訊。由真實資料的模擬可證明即使是在一個信號雜訊比 很低的環境中,應用高階相關法都能得到相當好的目標偵測率和雜訊排除率,並能對使用的資料作最少的假設,解除許多 傳統方法上的限制。以高階相關法與其處理相關性資料的能力,只要稍微加以修正便可以推展到二維影像的處理上。最直 覺的應用就是影像中曲線的偵測,不論是二元影像或是灰階影像。原因是目標點組成點間的相關性滿足了高階相關法的標 準。這些包含了文件的自動處理包括了文件表格的辨識、分類與輔助文字辨識系統濾除表格格線;影像特徵的擷取包括了 邊緣偵測、線段偵測及斑點偵測。本論文將會證明上述各項的真實性、正確性與效率性。此外高階相關法則已被證明能夠 以類神經網路的架構來執行,因而更能提高上述處理的執行速度,其能達到即時和並行處理的效果。

關鍵詞 : 高階相關法 ; 格線分析 ; 表格辨識 ; 文字辨識 ; 表格濾除 ; 線段偵測 ; 邊緣偵測 ; 斑點偵測 目錄

封面內頁 簽名頁 授權書……….iii 簽署人須知………

……….iv 中文摘要………...………v 英文摘要………

……….vi 誌謝………....viii 目錄………

………..ix 圖目錄………...….xi 表目錄………

………...xiv 第一章 緒論………..….1 第一節 研究動機與目的……….1 第二節 內容大綱……….3 第二章 高階相關法則………..………...5 第一節 高階相關法的運算……….5 第二 節 修正型高階相關法……….7 第三章 自動文件處理系統………...………….………..9 第 一節 系統架構……….9 第二節 前處理………12 第 三節 應用高階相關法則於格線之偵測………...14 第四節 後處理………16 第 五節 資料庫建立與自動分類………...19 第四章 影像分析之研究……….21 第一節 影像分析之傳統法則……….……..21 第二節 高階相關法之邊界偵測………...25 第三節 高階相關法之線段偵測………...28 第四節 高階相關法之斑點偵測………..…….30 第五章 程式模擬及討論……….32 第一節 文件自動處理系統………

…...32 第二節 影像分析之基礎……….…………..48 第六章 結論及未來展望………

……….58 第一節 結論……….…………..58 第二節 未來展望……….………

……..58 參考文獻……….60 參考文獻

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參考文獻

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