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研究生: 陳旅涵
Chen, Lyu-Han
論文名稱: 單目影像測量系統設計與實現-應用於太陽能板量測
Design and Implementation for Measuring System based on Monocular Vision - Applied to the Measurement of Solar Panels
指導教授: 王偉彥
Wang, Wei-Yen
口試委員: 李宜勳
Li, Yi-Hsun
盧明智
Lu, Ming-Chih
呂成凱
Lu, Cheng-Kai
王偉彥
Wang, Wei-Yen
口試日期: 2023/01/11
學位類別: 碩士
Master
系所名稱: 電機工程學系
Department of Electrical Engineering
論文出版年: 2023
畢業學年度: 111
語文別: 中文
論文頁數: 108
中文關鍵詞: 光學檢測影像校正流程量測系統分析自動化生產
英文關鍵詞: optical inspection, an image calibration process, measurement system analysis, automated production
研究方法: 實驗設計法
DOI URL: http://doi.org/10.6345/NTNU202300222
論文種類: 學術論文
相關次數: 點閱:112下載:0
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  • 由於傳統人工做測量的方式相當的耗費時間和體力,使用手工測量較大尺寸的物件更加困難,隨著影像處理技術與視覺精密儀器的發展,自動化光學檢測已使用在多項展業。
    本論文設計的相機檢測系統應用近年來發展漸趨成熟的影像處理技術,根據太陽能板物件其特性設計出一個影像校正流程,包含魚眼校正、輪廓偵測技術、線段擬合技術和透視變換技術等等。測量過程會拍攝樣品板和需測量的待測板,並在物件周圍加上四個圓點維持測量時的穩定度,兩張相片在經過影像校正流程後為同一視角,並以單位長度推算物件的實際尺寸,量測出樣品板和待測板之間的公差範圍。
    同時,與專業的游標尺相比對量測值,反覆檢測實驗結果,並以量測系統分析 (MSA) 評估量測系統的穩定性,如此非接觸型的測量方式不易損傷物件之外,也達到自動化生產的目的。

    The traditional manual measurement method is quite time-consuming and labor-intensive, and it is more difficult to measure larger-sized objects by hand. With the development of image processing technology and visual precision instruments, automated optical inspection has been used in many industries.
    The progressively developed image processing technology in recent years is applied by the camera based detection system in this thesis. An image calibration process is designed according to the characteristics of the solar panels, including fisheye calibration, contour detection technology, line segment fitting technology and perspective transformation technology, etc. In the measurement process, the sample board and the test board will be photographed respectively. Additionally, four dots added around the object to maintain the stability of the measurement. After the image calibration, the two photos are in the same angle of view. We can calculate the actual size of the object by the pixel size and obtain the tolerance range between the sample board and the test board finally.
    Meanwhile, the experimental results are compared to the value measured by the professional vernier and checked repeatedly. The stability of the measurement system is evaluated with the measurement system analysis (MSA). It is a non-contact measurement method, which is not easy to damage the object, and achieve the purpose of automated production as well.

    第一章 緒論 1 1.1 前言 1 1.2 動機與文獻探討 3 1.2.1 接觸與非接觸式探討 3 1.2.2 自動化光學檢測簡介 4 1.2.3 OpenCV程式庫簡介 4 1.2.4 量測相關文獻 5 1.3 論文架構 9 第二章 硬體介紹及平台設計 11 2.1 量測平台系統 11 2.2 實驗器材規格介紹 12 第三章 基準值的建立 17 3.1 游標卡尺 / 分度尺量測方法 18 3.2 厚度量測方法 20 第四章 影像量測系統 22 4.1 校正流程圖設計 22 4.2 影像量測方法 23 4.3 影像處理技術應用 23 4.3.1 魚眼效應 24 4.3.2 灰階 30 4.3.3 邊緣偵測 32 4.3.4 透視變換 35 4.3.5 旋轉 39 4.3.6 傾蝕與膨脹 44 4.3.7 直線擬合 47 4.4 四個圓點的設計 49 4.5 影像尺寸計算方法 50 4.6 MSA的重複性評估應用 51 第五章 實驗與分析 53 5.1 厚度量測實驗結果 53 5.2 相機魚眼校正實驗結果 55 5.3 影像量測實驗結果 58 5.3.1 太陽能板內部測量實驗結果 60 5.3.2 太陽能板外部測量實驗結果 73 5.3.3 影像數目對於誤差結果實驗分析 84 5.3.4 四個圓點的設計對於誤差結果實驗分析 85 5.3.5 影像解析度對於誤差結果實驗分析 87 5.4 MSA的重複性評估分析 88 5.5 效能分析 102 第六章 結論與未來發展 104 參考文獻 105

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