Title :
Temporal updating scheme for probabilistic neural network with application to satellite cloud classification - further results
Author :
Azimi-Sadjadi, Mahmood R. ; Gao, Wenfeng ; Haar, Thomas H Vonder ; Reinke, Donald
Author_Institution :
Dept. of Electr. Eng., Colorado State Univ., Fort Collins, CO, USA
fDate :
9/1/2001 12:00:00 AM
Abstract :
A novel temporal updating approach for probabilistic neural network classifiers was developed by Tian et al. (2000) to account for temporal changes of spectral and temperature features of clouds in the visible and infrared GOES 8 (Geostationary Operational Environmental Satellite) imagery data. In this paper, a new method referred to as moving singular value decomposition (MSVD) is introduced to improve the classification rate of the boundary blocks or blocks containing cloud types with non-uniform texture. The MSVD method is then incorporated into the temporal updating scheme and its effectiveness is demonstrated on several sequences of GOES 8 cloud imagery data. These results indicate that the incorporation of the new MSVD improves the overall performance of the temporal updating process by almost 10%
Keywords :
clouds; feature extraction; geophysics computing; image texture; maximum likelihood detection; neural nets; pattern classification; remote sensing; GOES 8 imagery data; Geostationary Operational Environmental Satellite; cloud classification; image texture; maximum likelihood detection; probabilistic neural network; singular value decomposition; spectral features; temperature features; temporal updating; Clouds; Feature extraction; Focusing; Frequency; Infrared imaging; Infrared spectra; Neural networks; Satellites; Singular value decomposition; Temperature distribution;
Journal_Title :
Neural Networks, IEEE Transactions on