학술논문

Stochastic super-resolution of satellite-based Sea Surface Temperature using conditional SPDE models
Document Type
Conference
Source
2014 IEEE Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International. :3077-3080 Jul, 2014
Subject
Geoscience
Spatial resolution
Ocean temperature
Biological system modeling
Stochastic processes
Mathematical model
High-resolution observations
Superresolution
Stochastic models
SPDE
SST
Language
ISSN
2153-6996
2153-7003
Abstract
This paper addresses the simulation of high-resolution geophysical fields from low-resolution satellite observations in the context of the remote sensing of the ocean surface. Within a super-resolution framework, we investigate texture-based stochastic models while controlling high-resolution spectral, geometrical and statistical features. We introduce a novel model stated as the solution of a SPDE (Stochastic Partial Differential Equation) associated with conditional 2D Gaussian field. We address both model parameter inference from real high-resolution images and simulation issues. Experiments for Sea Surface Temperature fields demonstrate the relevance of our model compared to classical stationary schemes.