STF-FlowDiff: A Diffusion-Based SpatioTemporal Fusion Method With Optical Flow Guidance (opens in new tab)

Spatiotemporal fusion (STF) of remote sensing image is essential for dynamic monitoring and analysis of the Earth’s surface. By integrating multisource observations, it effectively mitigates the limitations of individual sensors in spatial resolution and temporal frequency. However, it remains challenging under complex land-cover changes and temporal misalignment. To solve this problem, a diffusion-based STF method with optical flow guidance, STF-FlowDiff, is proposed to exploit temporal dyna...