Table 2 Average two-dimensional correlation coefficients between the reference full-time scan images and the images processed with different methods

0.9955 ± 0.0092

0.9898 ± 0.0131

0.9818 ± 0.0174

0.9672 ± 0.0213

0.9294 ± 0.0339

0.9958 ± 0.0085

0.9903 ± 0.0123

0.9822 ± 0.0167

0.9676 ± 0.0201

0.9299 ± 0.0324

0.9969 ± 0.0077

0.9918 ± 0.0116

0.9838 ± 0.0161

0.9689 ± 0.0193

0.9310 ± 0.0309

0.9971 ± 0.0077

0.9925 ± 0.0115

0.9844 ± 0.0160

0.9696 ± 0.0191

0.9315 ± 0.0304