Variogram Fractal Dimension Based Features for Hyperspectral Data Dimensionality Reduction
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Abstract
In this paper a new approach for fractal based dimensionality reduction of hyperspectral data has been proposed. The features have been generated by multiplying variogram fractal dimension value with spectral energy. Fractal dimension bears the information related to the shape or characteristic of the spectral response curves and the spectral energy bears the information related to class separation. It has been observed that, the features provide accuracy better than 90 % in distinguishing different land cover classes in an urban area, different vegetation types belonging to an agricultural area as well as various types of minerals belonging to the same parent class. Statistical comparison with some conventional dimensionality reduction methods validates the fact that the proposed method, having less computational burden than the conventional methods, is able to produce classification statistically equivalent to those of the conventional methods.
Keywords
Hyperspectral Fractal Variogram Dimensionality reduction Computational complexityReferences
- Ahlberg, J.H., Nilson, E.N., & Walsh, J.L. (1967). The theory of splines and their applications. Academic Press: Newyork and London, ch 2.Google Scholar
- Anderson, J.R. (1976). A land use and land cover classification system for use with remote sensor data. URL:http://landcover.usgs.gov/pdf/anderson.pdf
- Comon, P. (1994). Independent component analysis, a new concept? Signal Processing, 36, 287–314.CrossRefGoogle Scholar
- Cormen, T.H., Leiserson, C.L., Rivest, R.L., Stein, C. (2001) Introduction to algorithms, 2nd Edition, MIT Press, McGraw Hill Book Co.Google Scholar
- Davis, J.C. (1973) Statistics and data analysis in geology, 2nd edition. John Wiley & Sons, pp 239–246Google Scholar
- Foody, G. M. (2004). Thematic map comparison: evaluating the statistical significance of difference in classification accuracy, Photogrammetric Engineering and Remote Sensing 70(5), 627–633.Google Scholar
- Foody, G. M. (2009). Classification accuracy comparison: hypothesis tests and the use of confidence intervals in evaluations of difference, equivalence and non-inferiority. Remote Sensing of Environment, 113, 1658–1663.CrossRefGoogle Scholar
- Fukunaga, K. (1989). Effect of sample size in classifier design. IEEE Pattern Analysis and Machine Intelligence, 11(8), 873–885.CrossRefGoogle Scholar
- Ghosh, J.K. & Mukherjee, K. (2009) Fractal based dimensionality reduction of hyper-spectral images using power spectrum method, advances in computational vision and medical image processing : methods and applications. In J. M. R. S. Tavares, R. M. Natal Jorge (Eds), Springer Publication, pp 89–94. (ISBN: 978-0-415-57041-1)Google Scholar
- Ghosh, J. K., & Somvanshi, A. (2008). Fractal based dimensionality reduction of hyperspectral images. Journal of Indian Society of Remote Sensing, 36, 235–241.CrossRefGoogle Scholar
- Ghosh, J. K., Somvanshi, A., & Mittal, R. C. (2008). Fractal feature for classification of hyperspectral images of Moffit field, U.S.A. Current Science, 94, 356–358.Google Scholar
- Ghosh, J. K., Singh, A., & Mukherjee, K. (2009). Detection of anomaly in water body using hyperspectral images. Journal of Geomatics, 3(2), 53–56.Google Scholar
- Green, A. A., Berman, M., Switzer, P., & Craig, M. D. (1988). A transformation for ordering multispectral data in terms of image quality with implications for noise removal. IEEE Transactions on Geoscience and Remote Sensing, 26(1), 65–74.CrossRefGoogle Scholar
- Horvath, G. (2003). Neural networks in measurement systems, advances in learning theory: methods, models and applications (p. 392). In J. A. K. Suykens, G. Horvath, S. Basu, C. Micchelli, J. Vandewalle (Eds.), Amsterdam, The Netherlands: IOC Press.Google Scholar
- Hughes, G.F. (1968). On the mean accuracy of statistical pattern recognizers. IEEE Transactions on Information Theory, 14(1)Google Scholar
- Kendall, M.G. (1961). A course in the geometry of n-dimensions. Hafner PublishingGoogle Scholar
- Klinkenberg, B. (1994). A review of methods used to determine the fractal dimension of linear features. Mathematical Geology, 26(1), 23–46.CrossRefGoogle Scholar
- Landgrebe, D.A. (2003) Signal theory methods in multispectral remote sensing. John Wiley & SonsGoogle Scholar
- Mandelbrot, B. B. (1977). The fractal geometry of nature. New York: W.H. Freeman and Company.Google Scholar
- Mandelbrot, B. B. (1982). The fractal geometry of nature. San Fransisco: W.H. Freeman and Company. Google Scholar
- Moigne, J. L., Cole-Rhodes, A., Eastman, R., El-Ghazawi, T., Johnson, K., Kaewpijit, S., Laporte, N., Morisette, J., Nethanyahu, N. S., Stone, H. S., & Zavorin, I. (2002). Multiple sensor image registration, image fusion and dimension reduction of earth science imagery. IEEE Proceedings of the fifth international conference on information fusion, 2, 999–1006.Google Scholar
- Oppenheim, A.V., Schafer, R.W., & Buck, J.R. (2005). Discrete time signal processing, 2nd Edn, Pearson Education.Google Scholar
- Pu, R., & Gong, P. (2004). Wavelet transform applied to EO-1 hyperspectral data for forest LAI and crown closure mapping. Remote Sensing of Environment, 91, 212–224.CrossRefGoogle Scholar
- Robila, S.A., ed (2004). Advanced image processing techniques for remotely sensed images. Springer-Verlag.Google Scholar