Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/19527
標題: 利用雷射視覺量測技術之3D形狀重建系統
A System of 3D Shape Reconstruction by Laser Vision Measurement
作者: 黃道原
Huang, Dao-Yuan
關鍵字: Laser
雷射
Laser Vision
3D
Shape Reconstruction
雷射視覺
3D
形狀重建
出版社: 資訊科學與工程學系所
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摘要: 本文的主要目標為建立一套架構簡單、量測快速的主動式深度量測系統,偵測並重建待測物體的3D形狀,用以應用於高精確度的工業元件檢測。本系統平台採用基礎三角法的架構,由一具可三維移動的CCD鏡頭、一線雷射光束與一台個人電腦所組成。本系統並不限制雷射組件的架設角度,只要先設定一件測量物為基準,計算出雷射線間隔距離相對於物體厚度的轉換公式,就可以運用此公式計算出其他待測物體的厚度。本系統採用放大倍率較大的鏡頭,因此在取像之後,必須先做雷射條紋形狀的萃取,再運用Otsu演算法做二值化運算,搭配型態學影像處理,骨架化與Hough轉換,計算雷射線的相隔距離,再透過前述的公式轉換待測物體的厚度值。本系統對標準單位板做實測,計算表面重建的誤差值約為5%(0.01mm),證明本系統有相當好的精確度。
This paper proposes an active depth measure system with speedy operation and simple structure that can be used in Industrial inspection. The system is built in basic triangulation principle and comprises one CCD camera which can move in three dimensions, one laser beam and one personal computer. We do not restrict the angle when erecting the laser device, but calculate the “laser spacing to object thickness” transfer formula instead. Then we can use that formula to get thickness information of inspecting objects. Because of the high magnification camera, we have to extract the laser streak from the obtained images fist, then we can get the line position of laser streak by using Otsu's method , morphology, skeletonization and Hough transform from the images of inspecting object. The system shows a good performance of getting only 5% error to the reconstructed surface of the standard board. This paper addresses our system works in high accuracy industrial inspecting.
URI: http://hdl.handle.net/11455/19527
其他識別: U0005-1208200817442000
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-1208200817442000
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