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Spectral image data aggregation for multisource data augmentation
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AI
DOI：10.1080/22797254.2025.2492295.png)
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摘要
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Multispectral and hyperspectral images are increasingly popular in different research fields, such as remote sensing, astronomical imaging, or precision agriculture. However, the amount of free data available to perform machine learning tasks is relatively small. Moreover, artificial intelligence models developed in the area of spectral imaging require input images with a fixed spectral signature, expecting the data to have the same number of spectral bands or the same spectral resolution. This requirement significantly reduces the number of usable sources that can be used for a given model. The scope of this study is to introduce a methodology for spectral image data aggregation, in order to allow machine learning models to be trained and/or used on data from a larger number of sources, thus providing better generalization. For this purpose, we propose different interpolation techniques, in order to make multisource spectral data compatible with each other. The interpolation outcomes are evaluated through various approaches. This includes direct assessments using surface plots and metrics such as a Custom Mean Squared Error and the Normalized Difference Vegetation Index. Additionally, indirect evaluation is done by estimating their impact on machine learning model training, particularly for semantic segmentation.
Keyword:
Spectral images
interpolation
data aggregation
multisource data
neural networks
期刊
IF:
3.7
论文数:
914
被引数:
2.2K
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