本研究的目的是以立體視覺發展一套能應用於船模六自由度運動的量測方法，使用立體視覺觀測物體姿態屬於非接觸式的光學量測，以兩個或兩個以上不同角度拍攝運動中的物體，分析影像中的特徵值並將二維影像座標轉換為三維座標，本研究使用雙相機架設一套可以量測剛體六個自由度運動的系統，並運用在船模的姿態量測。
使用雙相機必須確保兩台相機同步擷取影像，因此選用兩台規格型號相同的工業相機，以並聯方式給予電壓，同時觸發快門取得影像。辨識方法則是直接設計一個簡單標示出X軸與Y軸方向的特徵圖形，簡化搜尋影像中特徵值的複雜計算，只要將特徵圖形固定於待測物上便能計算其姿態，應用對象廣泛。
實驗方面首先確認此方法的辨識範圍及性能，包括拍攝範圍、幀率、誤差、辨識角度極限等，之後應用於拖航水槽的波浪試驗，將立體視覺與陀螺儀傳感器、雷射感測器測得之數據進行比對，得到相近的結果，除了單個船模的姿態測量，此方法也能同時辨識兩個目標，用於觀察兩物體間的相對運動。

The purpose of this research is developing a measurement method that can be applied to six degrees of freedom (6DoF) of the ship based on stereo vision. Stereo vision is an non-contact optical measurement method that converts two-dimensional image coordinates into three-dimensional coordinates by photographing a moving object in two or more different angles.
To ensure two images are shot simultaneously, this research use two industrial cameras with the same specification and connected in parallel circuit, then control camera shutters by imposing trigger voltage. We design a characteristic pattern that can be recognized easily, simplifying the complexity calculation of searching characteristic in the digital image.
Before applying to towing tank experiment, the operation range and performance of stereo vision were confirmed in laboratory. After that, we measurement the ship motion in wave making experiment by this method and compare the results with gyroscope sensor and laser sensor. In addition to measurement of a single ship model, the method can also measurement two objects at the same time.

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