elsa3d-elastic-semantic-anchoring-for-unified-3d-understanding-and-generation-29d6e699·1 events·first seen Aliases: ELSA3D: Elastic Semantic Anchoring for Unified 3D Understanding and Generation
ELSA3D is a new unified 3D foundation model that addresses the coarse text-3D alignment problem in existing approaches by introducing elastic semantic anchoring. The method uses a scale-aware octree tokenizer and sparse Anchor Tokens that route semantic cues to geometrically relevant scales, with a per-block router that concentrates cross-modal computation where alignment is most needed. The model claims state-of-the-art results on image-to-3D generation, text-to-3D generation, and 3D captioning, while roughly halving FLOPs and inference latency compared to a non-elastic baseline.