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arXiv 2505.21746cs.CVcs.AIcs.LG

学习看得更多:用于精准农业的UAS引导的卫星图像超分辨率

Learning to See More: UAS-Guided Super-Resolution of Satellite Imagery for Precision Agriculture

Esri New York, NY(Esri纽约分校);Microsoft Research Redmond, WA(微软研究院雷德蒙德分校);USDA - Agricultural Research Service University Park, PA(美国农业部农业研究服务局帕克分校);Dept. of Electrical Engineering and Computer Science Alabama A&M University, AL(电气工程与计算机科学系阿拉巴马-阿马大学);Dept. of Environmental Science and Technology Univ. of Maryland, College Park, MD(环境科学与技术系马里兰大学学院市分校)

Arif Masrur, Peder A. Olsen, Paul R. Adler, Carlan Jackson, Matthew W. Myers, Nathan Sedghi, Ray R. Weil

AI总结:

本研究提出一种融合卫星与UAS图像的超分辨率框架,通过光谱和空间扩展提升覆盖作物生物量与氮估算精度,实现低成本、可扩展的精准农业应用。

摘要:

无人飞行器系统(UAS)和卫星是精准农业的关键数据源,但各自存在权衡。卫星数据提供广泛的空间、时间和光谱覆盖,但缺乏许多精准农业应用所需的分辨率;而UAS提供高空间细节,但受限于覆盖范围和成本,特别是高光谱数据。本研究提出了一个新框架,利用超分辨率方法融合卫星和UAS图像。通过整合空间、光谱和时间域的数据,我们以经济高效的方式利用了两种平台的优势。我们以覆盖作物生物量和氮(N)估算为案例研究来评估该方法。通过将UAS RGB数据光谱扩展到植被红边和近红外区域,我们生成了高分辨率的Sentinel-2图像,并将生物量和氮估算准确度分别提高了18%和31%。结果表明,UAS数据只需从部分田块和时间点采集。农民随后可以:1)增强UAS RGB图像的光谱细节;2)利用卫星数据提高空间分辨率;3)以卫星飞行频率在整个生长季空间上扩展这些增强效果。我们基于SRCNN的光谱扩展模型在Upper and Lower Chesapeake Bay地区的其他种植系统上展现出显著的模型可迁移性前景。此外,即使无云卫星数据不可用时,仅依赖UAS RGB输入,它仍然有效。空间扩展模型比基于原始UAS RGB图像构建的模型产生更好的生物量和氮预测。一旦用目标UAS RGB数据训练完成,空间扩展模型允许农民停止重复的UAS飞行。虽然我们引入了超分辨率技术进步,但核心贡献是一个轻量且可扩展的系统,适用于经济实惠的农场使用。

英文摘要:

Unmanned Aircraft Systems (UAS) and satellites are key data sources for precision agriculture, yet each presents trade-offs. Satellite data offer broad spatial, temporal, and spectral coverage but lack the resolution needed for many precision farming applications, while UAS provide high spatial detail but are limited by coverage and cost, especially for hyperspectral data. This study presents a novel framework that fuses satellite and UAS imagery using super-resolution methods. By integrating data across spatial, spectral, and temporal domains, we leverage the strengths of both platforms cost-effectively. We use estimation of cover crop biomass and nitrogen (N) as a case study to evaluate our approach. By spectrally extending UAS RGB data to the vegetation red edge and near-infrared regions, we generate high-resolution Sentinel-2 imagery and improve biomass and N estimation accuracy by 18% and 31%, respectively. Our results show that UAS data need only be collected from a subset of fields and time points. Farmers can then 1) enhance the spectral detail of UAS RGB imagery; 2) increase the spatial resolution by using satellite data; and 3) extend these enhancements spatially and across the growing season at the frequency of the satellite flights. Our SRCNN-based spectral extension model shows considerable promise for model transferability over other cropping systems in the Upper and Lower Chesapeake Bay regions. Additionally, it remains effective even when cloud-free satellite data are unavailable, relying solely on the UAS RGB input. The spatial extension model produces better biomass and N predictions than models built on raw UAS RGB images. Once trained with targeted UAS RGB data, the spatial extension model allows farmers to stop repeated UAS flights. While we introduce super-resolution advances, the core contribution is a lightweight and scalable system for affordable on-farm use.

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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