A simplified algorithm of nonlinear principal curves called nonlinear principal poly line is developed and its effect for feature extraction of hyperspectral data is researched.
并对非线性主折线算法用于高光谱遥感数据特征提取的效果进行研究和讨论。
According to the equation of asymptotic curves, a family of nonlinear asymptotic curves are given to the principal normal surface.
根据渐近曲线的方程，具体给出主法线曲面的一族非直线的渐近曲线。
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