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arXiv 2410.19787cs.CVcs.LG
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利用多时相哨兵1和2卫星数据进行叶面积指数估计的深度学习方法

Leveraging Multi-Temporal Sentinel 1 and 2 Satellite Data for Leaf Area Index Estimation With Deep Learning

Austrian Institute of Technology - Vienna, Austria(奥地利技术研究所-维也纳,奥地利)

Clement Wang, Antoine Debouchage, Valentin Goldité, Aurélien Wery, Jules Salzinger

AI总结:

本文提出了一种基于多时相哨兵1雷达数据和哨兵2多谱段数据的深度学习方法,用于像素级叶面积指数预测,通过多U-Net网络结构和共同潜在空间实现不同输入模态的互补信息融合,最终在公开数据上取得了0.06 RMSE和0.93 R2分数。

摘要:

叶面积指数(LAI)是理解生态系统健康和植被动态的关键参数。在本文中,我们提出了一种新的像素级LAI预测方法,通过利用多时间戳的哨兵1雷达数据和哨兵2多谱段数据的互补信息。我们的方法基于多个针对此任务定制的多U-Net深度神经网络。为处理不同输入模态的复杂性,该方法由多个预先训练的模块组成,以在共同的潜在空间中表示所有输入数据。然后,我们通过一个共同的解码器进行端到端微调,该解码器还考虑了季节性因素,我们发现季节性在其中起重要作用。我们的方法在公开可用数据上实现了0.06 RMSE和0.93 R2分数。我们的贡献可在https://github.com/valentingol/LeafNothingBehind上获得,供未来工作进一步改进当前进展。

英文摘要:

The Leaf Area Index (LAI) is a critical parameter to understand ecosystem health and vegetation dynamics. In this paper, we propose a novel method for pixel-wise LAI prediction by leveraging the complementary information from Sentinel 1 radar data and Sentinel 2 multi-spectral data at multiple timestamps. Our approach uses a deep neural network based on multiple U-nets tailored specifically to this task. To handle the complexity of the different input modalities, it is comprised of several modules that are pre-trained separately to represent all input data in a common latent space. Then, we fine-tune them end-to-end with a common decoder that also takes into account seasonality, which we find to play an important role. Our method achieved 0.06 RMSE and 0.93 R2 score on publicly available data. We make our contributions available at https://github.com/valentingol/LeafNothingBehind for future works to further improve on our current progress.

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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