Vaithiyam Rengarajan Vijaykumar

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Railways is the major means of transport in most of the countries. Rails are the backbone of the track structure and should be protected from defects. Surface defects are irregularities in the rails caused due to the shear stresses between the rails and wheels of the trains. This type of defects should be detected to avoid rail fractures. The objective of(More)
In this paper, dual tree complex wavelet transform (DTCWT) based speckle reduction algorithm is proposed for despeckling SAR images. Here considering the dependency of the wavelet coefficients across the same scale and also different scales. The DTCWT coefficients of log transformed speckle free signal are modelled with a multivariate Cauchy pdf and(More)
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