In the hyperspectral remote sensing, the continuum removed methods is used only with the spectrum of a single pixel to analyze spectrum and extract the feature bands useful with the classification.
在高光谱遥感中，包络线消除法一般仅局限于对单个像元的光谱进行光谱分析，从中提取出有助于分类识别的特征波段。
We do orthogonal wavelet transform of a face image, get its four sub images of different frequency bands, then respectively extract their singular value features.
对人脸图象作正交小波变换，得到它在不同频带上的四个子图象，然后分别提取奇异值特征。
In fault diagnosis of machinery, the method can extract fault information of machine parts of different frequency bands.
该方法实现了在机械设备故障诊断中不同频带范围内零部件故障信息的分离和提取。
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