Geometric vector shapes are often called features, leading to the term feature data, which is synonymous with vector data or shape data.

几何矢量形状通常称为特征，指的是特征数据，它与矢量数据或形状数据是一个意思。

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Optimization of feature selection, we select area, perimeter, long axis, short axis, Euler number, geometric moments, and a total of 12 feature parameters as input vector.

优化特征选择，选定面积、周长、长轴、短轴、欧拉数、几何矩等共12个特征参数作为神经网络输入向量进行分类试验。

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