Color information and local spatial features are combined in the HSV color space in order to obtain principal components by principal component analysis neural networks.
在HSV彩色空间将颜色信息和局部空间特征相结合，利用主元神经网络提取主成分；
High dimension was changed into low dimension by using principal component analysis method, process detecting could be carried out in the low dimension space.
应用主元分析方法将高维数据转换到低维数据空间，这使得过程监测可以在低维的空间内进行。
Then it is analyzed that the pertinence of nest site selection of magpie and urban green space using principal component analysis and singe factor analysis approach.
通过主成分分析和单因子分析的方法分析喜鹊营巢特征与城市绿地环境的相关性。
The proposed method is composed of the following three parts:(1) The feature space is reduced by the PCA(the principal component analysis) on the normalized input spectra;
该方法包括以下几个步骤：（1）先将训练样本归一化，再利用PCA变换进行降维，获得样本特征向量；
The proposed method is composed of the following three parts:(1) The feature space is reduced by the PCA(the principal component analysis) on the normalized input spectra;
该方法包括以下几个步骤：（1）先将训练样本归一化，再利用PCA变换进行降维，获得样本特征向量；
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