Title :
Sharpening of shadow edges in ultra high resolution SAR images
Author :
Ang, Wee Peng ; Chen, Huixian
Author_Institution :
Sensors Div., DSO Nat. Labs., Singapore
Abstract :
In this paper, the equations describing the centroid location of target shadow and the terms which cause it to defocus are derived for images formed by spotlight SAR algorithm. Based on the derived equations, a shadow edge sharpening technique is proposed. The proposed technique is tested on real data and results show that it can sharpen and bring out even faintly visible shadow in ultra high resolution SAR images.
Keywords :
edge detection; geometry; image resolution; radar imaging; synthetic aperture radar; centroid location; shadow edge sharpening technique; shadow edges sharpening; spotlight SAR algorithm; target shadow; ultra high resolution SAR images; visible shadow; Azimuth; Equations; Geometry; Image resolution; Image sensors; Laboratories; Optical imaging; Radar imaging; Signal processing algorithms; Synthetic aperture radar;
Conference_Titel :
Radar, 2008 International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
978-1-4244-2321-7
Electronic_ISBN :
978-1-4244-2322-4
DOI :
10.1109/RADAR.2008.4653893
