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一分钟了解"英语表达:时域上是相关or不相关的,频域上是高频or低频的"

2017-08-30 15:59 423 查看
The first is that backgroundshave the
correlation in the spatial domain and the stability in the

time domain, and they occupy the low-frequency portion

of IR images in the frequency domain. The second

assumption is that targets are unrelated to the background

in spatial domain, and they dominate the high-frequency

portion of IR images in frequency domain.
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