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題名 | Surface Reconstruction from 3D Measured Data Using Translational Sweeping=探討三維量測資料之平移掃描曲面重建 |
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作者 | 翁文德; 賴景義; 董基良; | 書刊名 | 中國機械工程學刊 |
卷期 | 20:2 1999.04[民88.04] |
頁次 | 頁191-200 |
分類號 | 446.8 |
關鍵詞 | 三維量測資料; 平移掃描曲面; Reverse engineering; Sweep-surface fitting; Leastsquares method; |
語文 | 英文(English) |
中文摘要 | 本文提出平移掃描曲面嵌合演算法,探討三維量測資料重建掃描曲面。掃描曲面 為混合數條截面曲線沿著數條剖面曲線之軌跡平移掃描所建構而成之曲面。曲面嵌合乃在於 截面曲線、剖面曲線及量測資料參數值未知的狀況下,以量測點到所嵌合的曲面距離之最小 平方根值為原則,探討非線性之最佳化的問題。本文所提的平移掃描曲面嵌合演算法,亦可 應用於一般常用之CAD曲面,如二次曲面、線性曲面、規則曲面、線性昆氏曲面及板狀圓柱 等。 |
英文摘要 | A surface fitting algorithm using translational sweeping was proposed for the surface reconstruction of 3D measured data. The proposed sweep surface was generated essentially by blending the trajectories of several cross-section curves swept along some profile curves. The sweep-surface fitting was formulated as a nonlinear optimization problem for which the root-mean-squares of the distance between the measured data and the fitted surface was minimized, which yields the unknown cross-section curves, the profile curves and the parameter values corresponding to each measured data. The proposed sweep surface fitting algorithm can be used to describe a broad type of surfaces that are generated by sweeping. In addition, it can also be applied to describe several commonly used CAD entities such as quadratic surfaces, bilinear surfaces, rule surfaces, linear Coons surfaces and tabulated cylinders. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。