학술논문

Reconstruction of Missing Data in Satellite Images of the Southern North Sea Using a Convolutional Neural Network (Dincae)
Document Type
Conference
Source
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS Geoscience and Remote Sensing Symposium IGARSS , 2021 IEEE International. :7493-7496 Jul, 2021
Subject
Aerospace
Geoscience
Photonics and Electrooptics
Signal Processing and Analysis
Training
Satellites
Clouds
Neural networks
Sea measurements
Geoscience and remote sensing
Particle measurements
Satellite data reconstruction
convolutional auto-encoder
neural network
machine learning
DIN-CAE
Language
ISSN
2153-7003
Abstract
A neural network with the architecture of a convolutional au-toencoder is used to reconstruct missing data in satellite images of the Southern North Sea. The technique is applied to a multi-satellite data product of chlorophyll-a and total suspended particulate matter (SPM) concentration (representing 20 years of data). The presence of clouds significantly reduces the extent of the ocean that can be measured by satellite sensors using the visible or infrared spectrum. The accuracy of the reconstruction is assessed using cross-validation (i.e. increasing the actual extent of the cloud coverage). The results of the neural network compare favourably the data withheld for cross-validation.