FTPFusion: Frequency-Aware Infrared and Visible Video Fusion with Temporal Perturbation
- URL: http://arxiv.org/abs/2604.01900v1
- Date: Thu, 02 Apr 2026 11:08:14 GMT
- Title: FTPFusion: Frequency-Aware Infrared and Visible Video Fusion with Temporal Perturbation
- Abstract summary: FTP-Fusion is a frequency-aware infrared and visible video fusion method based on temporal and sparse cross-modal interaction.<n> FTP-Fusion consistently outperforms state-of-the-art methods across multiple metrics in both spatial fidelity and temporal consistency.
- Score: 5.5275479200431406
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Infrared and visible video fusion plays a critical role in intelligent surveillance and low-light monitoring. However, maintaining temporal stability while preserving spatial detail remains a fundamental challenge. Existing methods either focus on frame-wise enhancement with limited temporal modeling or rely on heavy spatio-temporal aggregation that often sacrifices high-frequency details. In this paper, we propose FTPFusion, a frequency-aware infrared and visible video fusion method based on temporal perturbation and sparse cross-modal interaction. Specifically, FTPFusion decomposes the feature representations into high-frequency and low-frequency components for collaborative modeling. The high-frequency branch performs sparse cross-modal spatio-temporal interaction to capture motion-related context and complementary details. The low-frequency branch introduces a temporal perturbation strategy to enhance robustness against complex video variations, such as flickering, jitter, and local misalignment. Furthermore, we design an offset-aware temporal consistency constraint to explicitly stabilize cross-frame representations under temporal disturbances. Extensive experiments on multiple public benchmarks demonstrate that FTPFusion consistently outperforms state-of-the-art methods across multiple metrics in both spatial fidelity and temporal consistency. The source code will be available at https://github.com/ixilai/FTPFusion.
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