Chung-Hua University Repository:Item 987654321/33937
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    Please use this identifier to cite or link to this item: http://chur.chu.edu.tw/handle/987654321/33937


    Title: 以圓形格點校正相機之研究
    Authors: 羅鵬飛
    Luo, Perng-Fei
    Contributors: 機械工程學系
    Mechanical Engineering
    Keywords: 圓形格點;相機校正;次像素尋邊法;圓錐曲線
    Circular grid;camera calibration;subpixel localization;conic section
    Date: 2005
    Issue Date: 2014-06-27 02:33:52 (UTC+8)
    Abstract: 本文利用含有N × N 圓形格點陣列的校正試件，建立一世界座標系統以及M個已知世界座標位置的校正點。利用此M個校正點及其於影像平面上相對應的影像點，可執行立體視覺校正，以擷取相機之內部與外部參數。本文以圓形格點中心之座標位置為校正點，而此等圓形格點於影像平面上將成圓形或橢圓形狀。本文提出次像素尋邊法，求得精確的橢圓邊界點位置後，再以圓錐曲線逼近法求取橢圓的中心位置，以決定各校正點於影像平面上的位置(即影像點)。此校正後之立體視覺被用來量測試件之剛體平移量，以評估此系統之三維量測能力。
    A dot target with a N×N array of circular dots is used to erect a world coordinate system and M calibration points with known world position coordinates. Using the M calibration points in the space and their corresponding image points in the image plane,
    Appears in Collections:[Department of Mechanical Engineering] Journal Articles

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