masked signal meaning in English

被屏蔽信号

Image fusion based on wavelet transform is presented . by decomposing the images and mask signals with wavelet transform , wavelet coefficients and approximation coefficients at different scales are obtained . with the corresponding coefficients of normalized - mask signals as weighting functions , coefficients are combined in different resolution levels to reduce the effect of the seam
在基于小波变换的图像融合中，将待融合图像与mask信号采用小波分解，得到不同尺度下的小波系数与逼近系数，以归一化mask信号的分解系数作为加权函数，在小波域的不同尺度融合对应系数，消除拼接缝的影响。