数据平滑函数，已经测试过了，采用高斯核函数方法，很好用 -Data smoothing function, it has been tested using Gaussian kernel function method, easy to use

数据平滑函数，在高斯核函数的基础上进行的方法改进，-Data smoothing function, a method based on the Gaussian kernel function were improved,

We propose a novel fluorescence emission difference microscopy (FED) system based on focusing cy- lindrical vector beams. In conventional FED, a Gaussian beam and a 0–2 π vortex phase plate are used to generate solid and hollow spots. We focus ra