*4.6. Comparison with SOTA Methods*

In this section, to verify the effectiveness of SSIN, several SOTA pansharpening methods are used to conduct comparative experiments at both reduced resolution and full resolution. For a fair comparison, all parameters of the DL-based approach are kept consistent with the original papers for best performance. In this article we use an implementation of traditional methods that can be downloaded for free [23,59].

The SOTA pansharpening methods used for comparison includes the MS image interpolation (EXP) [34], the robust band-dependent spatial detail (BDSD-PC) [60], GS adaptive (GSA) [28], partial replacement adaptive CS (PRACS) [29], MTF-GLP [61], and seven DLbased methods, such as PNN [6], PanNet [7], MSDCNN [12], TFNET [13], GGPCRN [45], MUCNN [15], MDA-Net [46].
