Title :
Edge detection algorithms in intensity SAR images: Empirical comparison of performances and proposed improvements
Author :
Melgar, Ignacio ; Fombellida, Juan ; G?³mez, Jaime ; Seijas, Juan
Author_Institution :
Sener Ing. y Sist.
Abstract :
Different edge-detection algorithms developed for high-speckle SAR images are evaluated and compared. Two evaluation criterions have been selected: (i) quality of the detected edges, specially considering false alarms, edge thickness and level of discontinuities on detected edges. (ii) computational efficiency. Some modifications on the best-performance algorithms regarding edge quality are proposed, at the expense of a certain computational load increase.
Keywords :
edge detection; radar imaging; synthetic aperture radar; wavelet transforms; edge detection algorithm; false alarm; intensity SAR image; synthetic aperture radar; wavelet transform; Computational efficiency; Filters; Image edge detection; Image segmentation; Performance evaluation; Pixel; Radar detection; Speckle; Synthetic aperture radar; Testing; Synthetic Aperture Radar; edge detection; probability of detection; probability of false alarm; speckle; wavelet;
Conference_Titel :
Automation Congress, 2008. WAC 2008. World
Print_ISBN :
978-1-889335-38-4
Electronic_ISBN :
978-1-889335-37-7
