Dual-space high-frequency learning for transformer-based MRI super-resolution

Haoneng Lin, Jing Zou, Kang Wang, Yidan Feng, Cheng Xu, Jun Lyu, Jing Qin

Abstract: Highlights•A novel high-frequency enhancement scheme comprising two plug-and-play modules for Transformer-based MRI SISR.•Introducing the Hi-Fe block, it adeptly extracts high-frequency features from the deep feature space.•Implementing the HFA, it effectively retrieves and amplifies high-frequency details from the image intensity space.