Note: the content of Nickel in the table is calculated by the subtraction method in the percentage of weight.
注：镍含量百分数按照质量百分数差减法计算。
In view of the faults of traditional method, a new background subtraction method for video image sequence is proposed.
针对传统背景提取算法的不足，提出一种新的视频序列背景提取方法。
Then human auditory masking is studied where its characteristic is combined with the multi-band spectral subtraction method.
其次，本文研究了人耳听觉掩蔽特性，并将听觉掩蔽效应应用于多频带谱减的语音增强方法中。
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