A 3D reconstruction method for spatial non-cooperative target based on 2DGS light decoupling
By decomposing the illumination and optimizing the material properties based on the 2DGS-based illumination decoupling method, the material-illumination coupling problem in visual reconstruction under dynamic illumination is solved, and efficient 3D reconstruction of spatial targets is achieved, which can meet the high precision and real-time requirements of space missions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NORTHWESTERN POLYTECHNICAL UNIV
- Filing Date
- 2026-04-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing visual reconstruction methods struggle to address the material-lighting coupling problem under dynamic lighting conditions, leading to decreased visual consistency in the reconstructed model and failing to meet the high-precision and real-time requirements of space missions.
A 2DGS-based lighting decoupling method is adopted. By acquiring multi-view image sequences, 2D Gaussian primitives are initialized, lighting is decomposed into global and local lighting, material properties are represented by BRDF functions, and staged optimization is performed. Primitive colors are calculated through rendering equations, and a loss function is designed for optimization.
By decoupling materials and lighting in dynamic lighting environments, the visual consistency and rendering efficiency of the reconstructed model are improved, adapting to the high precision and real-time requirements of spatial tasks.
Smart Images
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