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Author

Xiaoqiang Ji

2 papers indexed here

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Preprint Aug 2026

CometVLA: Co-Training on an Embodied Data Pyramid towards Physical Understanding

Vision-language-action (VLA) models remain brittle in manipulation tasks that require physical commonsense. Current physical VQA data is typically disembodied and misaligned with robot action domains. Egocentric videos are used only as auxiliary pre-training. It remains unclear whether improved VLM physical understandi...

Hanwen Wan, Dafeng Chi, Lin-Bo Zhai et al. · 0 citations
Preprint Aug 2026

ResemBrick: Brick Reconstruction from Photographs with Perceptual Fidelity and Buildability

Under a matched budget, ResemBrick surpasses existing voxel selectors in perceptual fidelity while uniquely reaching zero floating and zero unstable bricks on unfiltered held-out objects; as a complete pipeline, it attains the best perceptual fidelity among prior brick-construction systems.

Xilun Chen, Hanwen Wan, Yu-Song Zhao et al. · 1 citation

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