arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.12931eess.IVcs.CV
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利用EfficientUNet卫星图像对云结构的分类和理解

Classification and understanding of cloud structures via satellite images with EfficientUNet

Tashin Ahmed, Noor Hossain Nuri Sabab

摘要:

多年来,气候变化一直是一项共同利益,也是重要政治讨论和决策的前沿问题。浅云在理解地球气候方面发挥着重要作用,但在气候模型中解释和表示它们具有挑战性。通过对这些云结构进行分类,可以更好地了解云的物理结构,这将改善气候模型的生成,从而更好地预测气候变化或预报天气更新。云以多种形式组织,这使得构建传统的基于规则的算法来分离云特征具有挑战性。在本文中,云组织模式的分类进行使用一个新的放大版本的卷积神经网络(CNN)命名为EfficientNet作为编码器和UNet作为解码器,他们作为特征提取器和重构器的细粒度特征图,并作为一个分类器,这将有助于专家了解云将如何塑造未来的气候。通过在分类任务中使用分割模型,表明在UNet旁边使用良好的编码器,可以从该数据集获得良好的性能。Dice系数被用来作为最终的评价指标,在Kaggle竞赛中,公共和私人(测试集)排行榜的得分分别为66.26%和66.02%。

英文摘要:

Climate change has been a common interest and the forefront of crucial political discussion and decision-making for many years. Shallow clouds play a significant role in understanding the Earth's climate, but they are challenging to interpret and represent in a climate model. By classifying these cloud structures, there is a better possibility of understanding the physical structures of the clouds, which would improve the climate model generation, resulting in a better prediction of climate change or forecasting weather update. Clouds organise in many forms, which makes it challenging to build traditional rule-based algorithms to separate cloud features. In this paper, classification of cloud organization patterns was performed using a new scaled-up version of Convolutional Neural Network (CNN) named as EfficientNet as the encoder and UNet as decoder where they worked as feature extractor and reconstructor of fine grained feature map and was used as a classifier, which will help experts to understand how clouds will shape the future climate. By using a segmentation model in a classification task, it was shown that with a good encoder alongside UNet, it is possible to obtain good performance from this dataset. Dice coefficient has been used for the final evaluation metric, which gave the score of 66.26\% and 66.02\% for public and private (test set) leaderboard on Kaggle competition respectively.

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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