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arXiv 2406.04569cs.CV
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嫦娥五号图像中面向相机位姿鲁棒性的陨石坑检测

Camera-Pose Robust Crater Detection from Chang'e 5

The University of Adelaide(阿德莱德大学)

Matthew Rodda, Sofia McLeod, Ky Cuong Pham, Tat-Jun Chin

AI总结:

针对现有陨石坑检测算法缺少非天底视角性能评估的问题,本研究对比Mask R-CNN不同预训练方式的效果,证实真实月球图像预训练更优,并发布首个嫦娥五号非天底视角标注陨石坑检测数据集。

摘要:

随着太空任务的探索目标转向愈发危险的地形,任务需要准确及时的位置估计以保障导航安全。视觉导航通过将机载图像中可见的撞击坑与已知数据库进行关联来估计航天器位姿,从而实现这一目标。然而,现有研究尚未充分评估陨石坑检测算法(CDA)在包含非天底视角的图像上的性能。本研究评估了Mask R-CNN在陨石坑检测任务中的性能,对比了在含非天底视角的模拟数据上预训练的模型,与在真实月球图像上预训练的模型的效果。我们证明,尽管真实月球图像中缺少非天底视角的样本,在真实月球图像上预训练的效果仍更优,取得了63.1的F1分数检测性能,以及0.701交并比的椭圆回归性能。本研究首次对CDA在含非天底视角图像上的性能开展了定量分析。为推动鲁棒性更强的CDA研发,我们还首次提供了来自嫦娥五号着陆相机的、带有非天底视角标注的CDA数据集。

英文摘要:

As space missions aim to explore increasingly hazardous terrain, accurate and timely position estimates are required to ensure safe navigation. Vision-based navigation achieves this goal through correlating impact craters visible through onboard imagery with a known database to estimate a craft's pose. However, existing literature has not sufficiently evaluated crater-detection algorithm (CDA) performance from imagery containing off-nadir view angles. In this work, we evaluate the performance of Mask R-CNN for crater detection, comparing models pretrained on simulated data containing off-nadir view angles and to pretraining on real-lunar images. We demonstrate pretraining on real-lunar images is superior despite the lack of images containing off-nadir view angles, achieving detection performance of 63.1 F1-score and ellipse-regression performance of 0.701 intersection over union. This work provides the first quantitative analysis of performance of CDAs on images containing off-nadir view angles. Towards the development of increasingly robust CDAs, we additionally provide the first annotated CDA dataset with off-nadir view angles from the Chang'e 5 Landing Camera.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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