影像比較於距離判斷之應用探討

NCUIR > Engineering College > Executive Master of Mechanical Engineering > Electronic Thesis & Dissertation > Item 987654321/2727

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:	[Executive Master of Mechanical Engineering] Electronic Thesis & Dissertation

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