Infrared and visible image fusion method based on base-detail decoupling and residual band fusion
By employing a method of substrate-detail decoupling and residual band fusion, infrared and visible light image features are explicitly decomposed and differentiated, solving the problem of coupling between structural and detail information processing in existing technologies and generating fused images with higher stability and naturalness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHENGDU UNIVERSITY OF TECHNOLOGY
- Filing Date
- 2026-04-10
- Publication Date
- 2026-07-17
AI Technical Summary
In existing infrared and visible light image fusion methods, the coupling of structural information and detail information processing leads to problems such as brightness drift, texture artifacts, noise diffusion, and insufficient modal complementarity. Existing deep learning methods struggle to achieve a controllable balance between preserving infrared saliency and maintaining visible light texture.
By constructing a feature-decoupled encoder, image information is explicitly decomposed into basal and detail features. Basis frequency band fusion layer and detail frequency band fusion layer are designed separately for differentiated processing, realizing the division of labor and fusion and collaborative optimization of structure and detail. The basal frequency band fusion layer is used to perform adaptive weighting of low-frequency subbands and controlled weighting of high-frequency subbands, while the detail frequency band fusion layer performs residual frequency band packing transformation and attention competition fusion.
It generates structurally stable, detailed, and visually natural fused images, avoiding brightness distortion and noise diffusion, and maintaining the clarity of the outlines of prominent infrared targets and visible light backgrounds, making it suitable for a variety of application scenarios.
Smart Images
Figure CN122415345A_ABST