Abstrato

Edge Enhancement Using Haar Mother Wavelets for Edge Detection in SAR Images

Shehna Jaleel, V.Bhavya, N.C.Anu Sree, P.Sajitha

Satellite Borne Synthetic Aperture Radars (SAR) helps in the observation of geographical areas during the day as well as during the night. They are independent of weather effects. But SAR images represent complex reflectivity map of a scene which makes them non-meaningful for an inexperienced observer. Thus the characteristics of SAR images necessitates proper enhancement as well as the requirement of specific data analysis algorithms to ensure unsupervised and robust exploitation of SAR data. This paper presents a new method for edge enhancement in SAR images based on the exploitation of the information provided by the wavelet coefficients. The paper performs edge detection of SAR images using geodesic active contours. The comparison of existing edge detection techniques with geodesic active contour is also performed.