FFT processor performs phase correlation

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FFT processor performs phase correlation

机译：FFT处理器执行相位相关

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One of the most important transforms in image and signal processing is the Fourier transform. Attributed to French mathematician Jean Baptiste Joseph Fourier, the Fourier transform, and variations of it, can be used to transform images from the spatial domain to the frequency domain. This is useful in many image processing functions such as image filtering, for example where transforming image data into the frequency domain, applying simple point processing functions and performing an inverse fast Fourier transform (FTT) can be used to remove low-pass noise.

机译：图像和信号处理中最重要的变换之一是傅立叶变换。归因于法国数学家让·巴蒂斯特·约瑟夫·傅立叶（Jean Baptiste Joseph Fourier），傅立叶变换及其变体可用于将图像从空间域转换到频域。这在许多图像处理功能（例如图像过滤）中很有用，例如，其中可以将图像数据转换到频域，应用简单的点处理功能并执行快速傅里叶逆变换（FTT）来消除低通噪声。

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《Vision Systems Design》 |2010年第7期|P.10-11|共2页
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FFT processor performs phase correlation

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