FEFusion: A Frequency-Domain Enhancement Method for Rainy Infrared and Visible Image Fusion
摘要
Existing infrared and visible image fusion methods lack resistance to adverse weather degradation and interference in complex rainy environments. In addition, these methods rarely integrate frequency-domain information effectively during feature extraction, failing to effectively separate degenerate components that exhibit significant differences in their frequency domain characteristics. To address these limitations, this paper proposes a frequency-domain enhanced fusion method (FEFusion) for infrared and visible images. First, this paper introduces a Histogram Transformer (Histoformer), which employs a binning-based self-attention mechanism to dynamically group pixel intensities into different ranges. This enables adaptive focusing on degraded regions and facilitates cross-modal feature association. Second, we design a Frequency Domain Enhancement Block (FDEB) to decompose high-frequency rain-streak noise and low-frequency fog-like effects in the frequency domain. Subsequently, a Low-light Enhancement Module (LEM) is applied to enhance details in dark regions, while a High-Low Frequency Interaction Module (H-LFIM) achieves cross-frequency feature modulation. Finally, the experimental results verify the effectiveness of the method proposed in this work.