Automatic Target Recognition (ATR) from SAR Imaginary by Using Machine Learning Techniques
This work addresses ATR for SAR imagery, which is incremental as it applies existing methods to improve target recognition in a noisy domain.
The study tackled the challenging problem of Automatic Target Recognition (ATR) in SAR images by proposing a machine learning-based method using features like GLCM and SVM, achieving 95.26% accuracy in detecting moving and stationary targets from the MSTAR database.
Automatic Target Recognition (ATR) in Synthetic aperture radar (SAR) images becomes a very challenging problem owing to containing high level noise. In this study, a machine learning-based method is proposed to detect different moving and stationary targets using SAR images. First Order Statistical (FOS) features were obtained from Fast Fourier Transform (FFT), Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT) on gray level SAR images. Gray Level Co-occurrence Matrix (GLCM), Gray Level Run Length Matrix (GLRLM) and Gray Level Size Zone Matrix (GLSZM) algorithms are also used. These features are provided as input for the training and testing stage Support Vector Machine (SVM) model with Gaussian kernels. 4-fold cross-validations were implemented in performance evaluation. Obtained results showed that GLCM + SVM algorithm is the best model with 95.26% accuracy. This proposed method shows that moving and stationary targets in MSTAR database could be recognized with high performance.