Author

Bo Cai

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Preprint Aug 2026

StrataVLA: Hierarchical and Efficient 3D Geometric Grounding for Vision-Language-Action Models

StrataVLA is introduced, a plug-and-play framework for hierarchical geometry grounding that achieves 98.53% average success on LIBERO suites while reducing geometry-model invocations by up to 88%, establishing hierarchical geometry injection as an effective and efficient way to achieve spatially grounded robotic contro...

Jin Cui, Zhao Pu, Bo Cai et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Think Locally, Refine Globally for Memory-Efficient 3D Reconstruction

We propose LoG-VGGT, a memory-efficient framework for long-sequence 3D reconstruction that balances local temporal modeling with global camera consistency. Instead of relying on full global attention, our method introduces cross-window attention at a small subset of transformer blocks, enabling effective information pr...

Jing-Ke Zhou, Chen-Hang Ma, Zhi-Zhou Zhong et al. · 1 citation