More details about the network, you may check the following paper. The code will be available soon.
@Article{rs14236118, AUTHOR = {Feng, Yuting and Jin, Xin and Jiang, Qian and Wang, Quanli and Liu, Lin and Yao, Shaowen}, TITLE = {MPFINet: A Multilevel Parallel Feature Injection Network for Panchromatic and Multispectral Image Fusion}, JOURNAL = {Remote Sensing}, VOLUME = {14}, YEAR = {2022}, NUMBER = {23}, ARTICLE-NUMBER = {6118}, URL = {https://www.mdpi.com/2072-4292/14/23/6118 }, ISSN = {2072-4292}, DOI = {10.3390/rs14236118} }