Sparse representations for automatic target classification in SAR images

Jayaraman J. Thiagarajan, Karthikeyan N. Ramamurthy, Peter Knee, Andreas Spanias, Visar Berisha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

89 Scopus citations

Abstract

We propose a sparse representation approach for classifying different targets in Synthetic Aperture Radar (SAR) images. Unlike the other feature based approaches, the proposed method does not require explicit pose estimation or any preprocessing. The dictionary used in this setup is the collection of the normalized training vectors itself. Computing a sparse representation for the test data using this dictionary corresponds to finding a locally linear approximation with respect to the underlying class manifold. SAR images obtained from the Moving and Stationary Target Acquisition and Recognition (MSTAR) public database were used in the classification setup. Results show that the performance of the algorithm is superior to using a support vector machines based approach with similar assumptions. Significant complexity reduction is obtained by reducing the dimensions of the data using random projections for only a small loss in performance.

Original languageEnglish (US)
Title of host publicationFinal Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010
DOIs
StatePublished - Jun 28 2010
Event4th International Symposium on Communications, Control, and Signal Processing, ISCCSP-2010 - Limassol, Cyprus
Duration: Mar 3 2010Mar 5 2010

Publication series

NameFinal Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010

Other

Other4th International Symposium on Communications, Control, and Signal Processing, ISCCSP-2010
CountryCyprus
CityLimassol
Period3/3/103/5/10

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Thiagarajan, J. J., Ramamurthy, K. N., Knee, P., Spanias, A., & Berisha, V. (2010). Sparse representations for automatic target classification in SAR images. In Final Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010 [5463416] (Final Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010). https://doi.org/10.1109/ISCCSP.2010.5463416