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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/2727

    Title: 影像比較於距離判斷之應用探討
    Authors: 賴清霖;Ching-lin Lai
    Contributors: 機械工程研究所碩士在職專班
    Keywords: CMOS;特性曲線;壓縮空氣;單CCD空間定位法;快速變距機構
    Date: 2009-01-06
    Issue Date: 2009-09-21 11:54:15 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 本研究利用一裝有光學尺的快速變距機構來搭載一數位相機鏡頭 於不同距離取得之目標物影像並配合軟體影像運算系統,將經過 最小均方法運算後取得之影像邊界特徵之後,綜合單CCD空間定位 法之左右旋轉法與完全對焦法原理,量測物件於不同的位置的尺 寸大小來獲得一線性分布,進而得出一個物件尺寸隨距離變化的 趨勢曲線並找出其特性方程式來近似出其物件尺寸隨距離變化的 相依性;並以之判斷此機構於快速移動至設定點後之穩定性及定 位準確度。 此次研究利用以CMOS相機模組所取得之影像進行物件尺寸隨距 離變化的相依性比較實驗,實驗結果顯示在固定限制條件下,與 光學尺讀值驗證結果,單點量測平均誤差為0.67mm;依驗證結果 使用在100mm/0.23seconds的設定行程中,可量測出該快速變距機 構的平均定位誤差為1.01 mm。 In this research, the use of combined 3-D PTV image shifting and focus value method to extract depth information from a 2D image was performed by a rapid change distance to carry camera module and inline with optical ruler for verify the positioning accuracy, in the end of this research, the average single-point measurement error for 0.67mm; according to verify the results of the use of 100mm/0.23seconds settings in the program, scalability of the rapid change mechanism average positioning error of 1.01 mm,could measured by this method.
    Appears in Collections:[機械工程學系碩士在職專班 ] 博碩士論文

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