arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.06372cs.CV
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遥感图像理解中的新分类命名法--BigEarthNet数据集

BigEarthNet Dataset with A New Class-Nomenclature for Remote Sensing Image Understanding

Gencer Sumbul, Jian Kang, Tristan Kreuziger, Filipe Marcelino, Hugo Costa, Pedro Benevides, Mario Caetano, Begüm Demir

摘要:

本文介绍了BigEarthNet,这是一个大规模的哨兵-2多光谱图像数据集,具有新的类命名法,以推进遥感(RS)中的深度学习(DL)研究。BigEarthNet由590,326个图像块组成,这些图像块使用2018年CORINE土地覆盖(CLC)地图提供的多标签进行注释,该地图基于其最详细的3级分类命名法。初步研究表明,一些CLC类是具有挑战性的,以准确地描述只考虑哨兵-2图像。为了提高BigEarthNet的有效性,在本文中,我们引入了一种替代类命名法,以允许DL模型更好地学习和描述Sentinel-2图像的复杂空间和光谱信息内容。这是通过解释和安排CLC Level-3命名法实现的,该命名法基于Sentinel-2图像的属性,采用19个类别的新命名法。然后,在多标签分类的背景下,在最先进的DL模型中使用BigEarthNet的新类别命名法。结果表明,在BigEarthNet上从头开始训练的模型优于在ImageNet上预先训练的模型,特别是在一些复杂的类别中,包括农业、其他植被和自然环境。所有DL模型都可在http://bigearth.net/#downloads上公开获取,为指导遥感图像分析的未来进展提供了重要资源。

英文摘要:

This paper presents BigEarthNet that is a large-scale Sentinel-2 multispectral image dataset with a new class nomenclature to advance deep learning (DL) studies in remote sensing (RS). BigEarthNet is made up of 590,326 image patches annotated with multi-labels provided by the CORINE Land Cover (CLC) map of 2018 based on its most thematic detailed Level-3 class nomenclature. Initial research demonstrates that some CLC classes are challenging to be accurately described by considering only Sentinel-2 images. To increase the effectiveness of BigEarthNet, in this paper we introduce an alternative class-nomenclature to allow DL models for better learning and describing the complex spatial and spectral information content of the Sentinel-2 images. This is achieved by interpreting and arranging the CLC Level-3 nomenclature based on the properties of Sentinel-2 images in a new nomenclature of 19 classes. Then, the new class-nomenclature of BigEarthNet is used within state-of-the-art DL models in the context of multi-label classification. Results show that the models trained from scratch on BigEarthNet outperform those pre-trained on ImageNet, especially in relation to some complex classes including agriculture, other vegetated and natural environments. All DL models are made publicly available at http://bigearth.net/#downloads, offering an important resource to guide future progress on RS image analysis.

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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