Patent ID: 8594369
Filing Date: 2013-11-26
Classification: G06K

Abstract:
1. A method for automatically detecting fires on Earth's surface and atmospheric phenomena in Earth's atmosphere by means of a satellite system, the method comprising: acquiring multi-spectral images of the Earth at different times by means of a multi-spectral satellite sensor, each multi-spectral image being a collection of single-spectral images each associated with a respective wavelength (λ), each single-spectral image being made up of pixels each indicative of a spectral radiance (R computing an adaptive predictive model predicting spectral radiances (R comparing acquired spectral radiances (R detecting a fire in areas of the Earth's surface or an atmospheric phenomenon in areas of the Earth's atmosphere corresponding to the considered pixels on the basis of an outcome of the comparison, wherein computing an adaptive predictive model includes: computing, for each considered pixel, a temporal harmonic analysis of the spectral radiances of the pixel related to different times, and acquired at, or predicted for the same wavelength (λ); and computing the adaptive predictive model based on computed low-frequency components of the spectral radiances so as to filter out high-frequency changes in the spectral radiances due to fires on Earth's surface or atmospheric phenomena, wherein computing, for each considered pixel, a temporal harmonic analysis includes: and wherein forming a vector (h