频率通道 meaning in Chinese

frequency channel

Frequency using wavelet theory , another is multi - channels based on gray . the first method is based multi - scale decompression using wavelet theory , it extract gray feature from each channel to form feature vector , it can distinguish objects , but this method not have invariant property when object rotate
基于小波的频率多通道是从小波多分辨分解的角度，提取各频率通道的灰度特征形成特征向量，该方法可以很好的区分目标，但不具有旋转不变性。
Wavelet decomposition : db4 wavelet decomposition and energy norm l1 was employed to extract feature of zr - 4 alloy images . with the selected wavelet db4 , features at different frequency channels of life span were gotten . then an energy change at the direction of fracture extension was studied to find the relationship between the feature and life - span . fractal algorithm : feature of image at different channel was extract after wavelet transform
基于小波分解的断口图像的分析,首先提取锆- 4合金低周疲劳断口纹理图像的特征,实验确定了db4小波分解和l1能量的计算方法,求得不同寿命的断口图像在各个频率通道的特征值,断口图像的变化反映在特征值的变化,这为图像的寿命分析提供了一种有效的手段。