Title :
An FFT-based algorithm for computation of Gabor transform with its application to cloud detection/classification
Author :
Tian, Bin ; Azimi-Sadjadi, Mahmood R. ; Shaikh, Mukhtiar A. ; Vonder-Haar, Tom
Author_Institution :
Dept. of Electr. Eng., Colorado State Univ., Fort Collins, CO, USA
Abstract :
An efficient algorithm for the computation of 2D discrete Gabor transform is introduced. Under the assumption of non-overlapping windows, which is satisfied in many practical cases, the 2D Gabor coefficients can be calculated through an FFT-based scheme. Combining with the Kohonen self-organized map, this method is used in a real-world problem dealing with cloud detection/classification. Simulation results are also provided which show the promise of the proposed method
Keywords :
atmospheric techniques; clouds; fast Fourier transforms; geophysical signal processing; geophysics computing; image classification; remote sensing; self-organising feature maps; transforms; FFT-based algorithm; Kohonen self-organized map; algorithm; atmosphere; cloud detection; image classification; image processing; measurement technique; meteorology; neural net; remote sensing; two dimensional discrete Gabor transform; Atmosphere; Cloud computing; Discrete transforms; Equations; Feature extraction; Neural networks; Pipeline processing; Recurrent neural networks; Robustness; Tellurium;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516583
