arXiv:2508.09732cs.CVcs.RO2025-08中稿 · DASC 2025被引 3

为飞机自动着陆系统提供实时、可信的视觉姿态估计与故障检测能力

Predictive Uncertainty for Runtime Assurance of a Real-Time Computer Vision-Based Landing System

  • 用空间软最大值网络实现高精度关键点回归,支持多种骨干网络并实时运行
  • 提出校准的不确定性估计,误差低于亚像素级,可有效识别异常输出
  • 融合残差式接收机自主完整性监测,实现在运行时动态发现并剔除错误结果

近年来数据驱动的计算机视觉技术使民用航空领域的自主导航(如自动着陆和跑道检测)成为可能。然而,确保此类系统满足航空应用所需的鲁棒性与安全性仍是重大挑战。本文提出一种实用的基于视觉的飞机姿态估计算法,迈向在安全关键航空场景中认证该类系统的可能性。方法包含三项创新:(i) 基于空间软最大值算子的高效灵活神经架构,支持多种视觉骨干网络,实现实时推理;(ii) 一种原理严谨的损失函数,生成校准的预测不确定性,通过锐度与校准度量评估;(iii) 对残差式接收机自主完整性监测(Residual-based RAIM)的改进,实现运行时对异常模型输出的检测与剔除。我们在跑道图像数据集上实现并评估了该姿态估计算法,结果表明,模型在精度上优于基线架构,同时产生亚像素级精度的校准不确定性,可用于下游故障检测。

原文摘要 · Abstract (English)

Recent advances in data-driven computer vision have enabled robust autonomous navigation capabilities for civil aviation, including automated landing and runway detection. However, ensuring that these systems meet the robustness and safety requirements for aviation applications remains a major challenge. In this work, we present a practical vision-based pipeline for aircraft pose estimation from runway images that represents a step toward the ability to certify these systems for use in safety-critical aviation applications. Our approach features three key innovations: (i) an efficient, flexible neural architecture based on a spatial Soft Argmax operator for probabilistic keypoint regression, supporting diverse vision backbones with real-time inference; (ii) a principled loss function producing calibrated predictive uncertainties, which are evaluated via sharpness and calibration metrics; and (iii) an adaptation of Residual-based Receiver Autonomous Integrity Monitoring (RAIM), enabling runtime detection and rejection of faulty model outputs. We implement and evaluate our pose estimation pipeline on a dataset of runway images. We show that our model outperforms baseline architectures in terms of accuracy while also producing well-calibrated uncertainty estimates with sub-pixel precision that can be used downstream for fault detection.

计算机视觉飞行安全不确定性估计实时系统

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