English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 58323/91877 (63%)
造訪人次 : 14319156      線上人數 : 105
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/35571

    題名: 運用影像量測技術於三維輪廓量測及重建之研究
    其他題名: The research of three dimensional profile measurement and reverse by using image processing technique
    作者: 彭嘉俊;Peng, Chia-chun
    貢獻者: 淡江大學航空太空工程學系碩士班
    陳步偉;Chen, Pu-woei
    關鍵詞: 影像處理;對焦外型重建法;量測;逆向工程;Image process,;shape from focus;measurement;reverse engineering
    日期: 2006
    上傳時間: 2010-01-11 06:47:41 (UTC+8)
    摘要: 隨著台灣科技產業的發展,許多產品越做越小,例如微機電產品,或是奈米技術,都顯示出微小化產品已成為未來的發展趨勢。傳統接觸式三次元量床有其限制,較不適用於量測這種微小工件,因此發展出影像量測技術來解決此問題。
    With the continuous development of scientific and technological industry in Taiwan, many products become smaller, such as micro-electro-mechanical’s products and nanotechnology’s components. All of those show the miniaturized will be the trend of future. Traditional CMM is not very well to measure those kinds of products, due to the limitation of probe’s diameter is too large to fit the size of work piece. For overcome the above mentioned problems, the optical measurement techniques have been developed recently. Image measurement technique is one kind of the optical measurement techniques, that using machine vision can achieve the full scale and real time measuring. Beside, this technique can avoid human’s misjudgment. It is also good for when the change of work piece’s surface is small than contact probe and any unwanted scratch on the work piece.

    This study is using shape form focus method for micro-component’s dimensional measurement. The purpose of this research is to establish a non-contact image-measuring system. The image-measuring system utilizes a CCD camera with a fixed focal length. In this research, the Sum-Modified-Laplacian operator is utilized to compute local measures of the quality of image focus. The CCD camera is moved along the z direction, and so is the focus plane. The region, where the focus plane intersects the object, is the best focused area. The quadratic equations are used to model the result and calculate the focused measure values of sequential images captured by this system to obtain the most accurate depth estimates.

    The accuracy of this non-contact image-measuring system can be achieved more than 98%. All the points after measurement can be transferred as IBL format, that means the result can be further reconstructed to three dimensional solid models by using CADCAM software.
    顯示於類別:[航空太空工程學系暨研究所] 學位論文


    檔案 大小格式瀏覽次數



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