研究不同分辨率对小型飞机检测的影响，为高空平台相机设计提供依据。
From Pixels to Planes: Minimum Ground Sample Distance for Aircraft
- 用模拟的0.3至2.4米GSD图像测试检测性能
- 0.86米GSD是准确识别多数飞机的最低要求
- 适合关注遥感检测与轻量化传感器设计的研究者
本研究探讨了地面采样距离（GSD）对各类尺寸飞机检测性能的影响，使用自有的AllPlanes 120数据集。该数据集包含来自多个卫星/航空源、历时两年采集的120架民用、军用及博物馆飞机图像，涵盖0.3至2.4米的多种分辨率。通过在缩放级别19（0.3米GSD）图像的下采样版本上训练YOLOv8s模型，评估性能。结果表明，至少需0.86米GSD才能准确检测大部分飞机，尤其是翼展小于20米的小型飞机。该指标可指导高空平台相机设计，在满足检测精度的前提下最小化设备重量。
原文摘要 · Abstract (English)
This study investigates the impact of ground sample distance (GSD) on the detection performance of various sized aircraft using the proprietary AllPlanes 120 dataset. The data set comprises 120 civilian, military and museum aircraft from multiple satellite/aerial sources collected over two years. Resolutions ranging from 2.4 to 0.3 meters GSD were simulated. Performance metrics were derived from a YOLOv8s model trained on down-sampled versions of zoom level 19 (0.3m GSD) imagery. The results indicate that a GSD of at least 0.86m is required to accurately detect most aircraft, particularly those with wingspans shorter than 20 meters. Due to weight constraints in high-altitude platforms, this GSD specification can inform camera design to minimize weight while maintaining detection accuracy.
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