inverse fourier transform

基本解釋

The original image was reconstructed exactly through the inverse Fourier transform to the coded image.
對(duì)編碼的實(shí)值圖像作逆傅里葉變換，可以準(zhǔn)確地重建原圖像。
opticsjournal.net
Convolutional differentiator (CD) is obtained by inverse Fourier transform of bandlimited Fourier spectra of partial derivative operator. CD is symmetric or antisymmetric and decays rapidly.
褶積微分算子是將偏導(dǎo)數(shù)算子的帶限傅氏譜進(jìn)行反傅氏變換得到的，具有對(duì)稱或反對(duì)稱和衰減速度快的特點(diǎn)。
xuebao.jlu.edu.cn
The filter is put on the power spectrum before applying the inverse Fourier transform to yield the correlation output. This technique can be used in pattern recognition of grey level input image.
將這種濾波器放置在傅里葉反變換產(chǎn)生相關(guān)輸出之前的聯(lián)合功率譜面上，該技術(shù)可以應(yīng)用在具有不同灰度圖像的模式識(shí)別中。