The filtering in spatialdomain, spatialfrequencydomain and a system of optical formatting imagines are also analyzed.
同时也分析了空域滤波、空频域滤波、光学成像系统。
2
Different scenes are analyzed in the power spectrum spatialfrequencydomain, it can be shown that the power spectrum of most natural scenes is of invariability.
用功率谱的方法对任意景物在空间频域进行分析表明，功率谱对于自然景物具有一定的不变性。
3
Synthetic aperture radiometer applies the interferometric principle to sample in the spatialfrequencydomain and retrieves the image by Fourier or other numerical transformation.