A NEW APPROACH OF EDGE DETECTION IN SAR IMAGES USING REGION-BASED ACTIVE CONTOUR

Ch Sri Veera Sagar, K. Rama Devi

Abstract: This paper presents a new methodology for the edge detection of complex radar images. The approach includes the edge improvisation algorithm and followed with edge detection. The nature of complex radar images made edge enhancement part before the edge detection as the data is highly heterogeneous in nature. Thus, the use of discrete wavelet transform in the edge improvisation algorithm is justified. Then region based active contour model is used as edge detection algorithm. The paper proposes the distribution fitting energy with a level set function and neighborhood means and variances as variables. The performance is tested by applying it on different images and the results are been analyzed.

Keywords: Edge detection, Edge improvisation, Synthetic Aperture radar (SAR), wavelet transforms.

DOI: https://doi.org/10.15623/ijret.2013.0209046