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Zihan Wang

3 papers indexed

arxivcs.CVcs.RO2026-07-07

Image2Sim: Scaling Embodied Navigation via Generative Neural Simulator

Zihan Wang, Seungjun Lee, Yinghao Xu, Gim Hee Lee

Embodied navigation aims to build agents that interpret multimodal goals, reason in 3D space, and reach target destinations reliably in the real world. However, progress remains constrained by the lack of scalable, high-fidelity, and physically grounded interactive environments.…

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arxivcs.CV2026-07-02

GeoMix: Descriptor-Free Visual Localization via Global Context and Multi-Detector Training

Yejun Zhang, Xinjue Wang, Zihan Wang, Esa Rahtu, Juho Kannala

Descriptor-free visual localization eliminates high-dimensional descriptor storage, preserves scene privacy, and simplifies map maintenance, yet its accuracy still lags far behind descriptor-based pipelines. We identify this gap to insufficient geometric discriminability in geome…

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arxivcs.ROcs.AI2026-06-30

Stage-Transition Dense Reward Modeling for Reinforcement Learning

Yang Yang, Bingjie Chen, Zihan Wang, Yizhe Li, Guoping Pan, Yi Cheng, et al.

Reinforcement learning for long-horizon robotic manipulation is often limited by sparse and delayed rewards, while manually designing dense shaping signals is costly and brittle to changes in environments and object configurations. This work proposes Stage-Transition Dense Reward…

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