外观
论文arXiv 2610.1909713 天前
北极冰下机器人视觉三维重建基准发布,融合MOSAiC实测与UE仿真数据
本文由 AI 根据公开内容整理,可能有误,请以原文为准:Benchmarking 3D Reconstruction for Under-Ice Robotic Perception in Arctic Environments(arXiv 2610.19097)
核心内容
面向北极海冰形态监测需求,研究团队发布了首个针对冰下机器人视觉感知的3D重建基准数据集。该基准整合了MOSAiC科考远征的真实水下影像与基于Unreal Engine构建的水下机器人仿真数据,旨在解决传统多波束声呐缺乏高分辨率纹理及光谱信息的局限。通过引入向上观测的多波束声呐作为几何真值进行跨模态配准,实现了对视觉算法在极端环境下性能的可量化评估。
技术层面,该基准重点评测Structure-From-Motion (SfM) 与单目深度估计算法在冰下稀疏特征与退化传感条件下的表现。系统架构采用声呐-视觉跨模态对齐机制,克服了纯视觉方案在无GPS、弱纹理场景下的尺度漂移问题。仿真端利用Unreal Engine精确复现冰下光学特性与复杂形态,为算法验证提供可控的Ground Truth;实测端则依托MOSAiC数据验证算法在真实物理环境中的鲁棒性,支撑高精度冰下栖息地与热交换模型构建。
关键看点
- 双源数据集:集成MOSAiC远征真实水下影像与Unreal Engine生成的高保真仿真数据,覆盖冰下复杂形态与光学退化场景。
- 跨模态真值:利用向上观测多波束声呐提供几何Ground Truth,通过跨模态配准实现视觉重建精度的定量评估。
- 核心算法评测:针对冰下弱纹理环境,专项基准化测试Structure-From-Motion与单目深度估计算法的重建性能与鲁棒性。
- 感知短板补全:解决声学传感器缺失光谱与微细纹理信息的问题,支撑冰下栖息地监测与海洋-冰-大气热交换建模。
工程与产业观察
该基准为极地水下机器人提供了稀缺的视觉-声呐对齐评测标准,验证了SfM与单目深度估计在极端弱纹理环境下的有效性。其“实测+仿真”双轨验证范式,对提升具身智能在非结构化、无GNSS水域的环境理解能力具有重要参考价值,推动水下SLAM从几何建图向语义级精细感知演进。
英文摘要 (Abstract)
As the Arctic transitions toward a seasonally ice-free state, capturing the complex morphology of submerged sea ice is crucial for advancing models of ocean-ice-atmosphere heat exchange and monitoring under-ice habitats. Currently, sub-surface ice mapping is predominantly achieved through acoustic sensors such as multibeam sonar. While sonar provides robust large-scale geometry, it lacks spectral and high-resolution textural information required to record fine morphological features - a critical limitation in under-ice environments, where sparse visual features and degraded sensing conditions challenge the capture of detailed structural and optical surface properties. We present a benchmark for vision-based under-ice 3D reconstruction using real-world data from the MOSAiC expedition and synthetic data generated in an Unreal Engine-based underwater robotics simulator. The benchmark evaluates Structure-From-Motion (SfM) and monocular depth estimation, with quantitative comparison enabled through cross-modal registration to upward-looking multibeam sonar.
作者:Klára Orbán, Ashwin Nedungadi, Ana-Ştefania Kogălniceanu, Bianca-Marcela Sava, Bastian Cieply, Raul-Alexandru Simon, Kuderna-Iulian Benţa, Stefan Lüdtke
来源
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