2026
SpecBridge: Spectral Structure Alignment and Transitive Bridging for 3D–2D–Text Pre-Training
IJCAI 2026
Open-vocabulary 3D understanding aims to align 3D representations with a unified vision-language semantic space. However, existing methods suffer from the challenge of structural asymmetry caused by sparse observations and holistic geometries. Additionally, the inherent semantic chasm between discre