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cs.CV2026
GVC-Seg: Training-Free 3D Instance Segmentation via Geometric Visual Correspondence
Liang Xu, Fangjing Wang, Jinyu Yang +1
Accurate 3D instance segmentation in point cloud data is critical for machine vision applications. Recent advancements leverage multiple pre-trained foundation models to generate 3…
cs.CV2025
HCNQA: Enhancing 3D VQA with Hierarchical Concentration Narrowing Supervision
Shengli Zhou, Jianuo Zhu, Qilin Huang +3
3D Visual Question-Answering (3D VQA) is pivotal for models to perceive the physical world and perform spatial reasoning. Answer-centric supervision is a commonly used training met…