主要用于图像配准,由于相位信号，避免了图像中低频噪音的影响，在光照条件变化的应用环境表现突出，被广泛用于遥感，医学图像等领域。-

Mainly used for image registration, due to the phase signal to avoid the influence of low-frequency noise in the image, and in the application of environmental lighting conditions change outstanding, are widely used in remote sensing, medical imaging and other fields.