Denoising method for Fourier lamination imaging

The invention relates to the technical field of Fourier laminated imaging, and provides a denoising method for Fourier laminated imaging, which is mainly used for optimizing an objective function expression of Fourier laminated imaging, introducing an L2 normal form into the objective function expression to reduce the influence of noise, and deriving the optimized objective function expression to obtain a high-resolution frequency spectrum of a target. And carrying out inverse Fourier transform on the high-resolution frequency spectrum to an airspace to obtain a large-view-field high-resolution complex image of the target. Compared with the traditional Fourier lamination imaging method, the method provided by the invention can be used for obtaining a reconstructed image with higher quality under the same noise condition, and the noise can be effectively suppressed. 本发明涉及傅里叶叠层成像技术领域，提供一种傅里叶叠层成像的去噪方法，主要针对傅里叶叠层成像的目标函数式进行优化，在目标函数式中引入L2范式降低噪声的影响，通过对优化后的目标函数式进行求导获得目标的高分辨率频谱，再将高分辨率频谱逆傅里叶变换至空域，即可获得目标的大视场高分辨率复图像。与传统傅里