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Research | Open Access

URNet: uncertainty-aware refinement network for event-based stereo depth estimation

Yifeng Cheng1 Alois Knoll1 Hu Cao1 ( )
Chair of Robotics, Artificial Intelligence and Real-time Systems, Technical University of Munich (TUM), Munich, Germany
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Abstract

Event cameras provide high temporal resolution, high dynamic range, and low latency, offering significant advantages over conventional frame-based cameras. In this work, we introduce an uncertainty-aware refinement network called URNet for event-based stereo depth estimation. Our approach features a local-global refinement module that effectively captures fine-grained local details and long-range global context. Additionally, we introduce a Kullback-Leibler (KL) divergence-based uncertainty modeling method to enhance prediction reliability. Extensive experiments on the DSEC dataset demonstrate that URNet consistently outperforms state-of-the-art (SOTA) methods in both qualitative and quantitative evaluations.

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Visual Intelligence
Article number: 18

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Cite this article:
Cheng Y, Knoll A, Cao H. URNet: uncertainty-aware refinement network for event-based stereo depth estimation. Visual Intelligence, 2025, 3: 18. https://doi.org/10.1007/s44267-025-00090-1

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Received: 07 May 2025
Revised: 18 September 2025
Accepted: 21 September 2025
Published: 06 November 2025
© The Author(s) 2025.

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