Title :
Evaluating corner detectors for the extraction of man-made structures in urban areas
Author :
Martinez-Fonte, Leyden ; Gautama, Sidharta ; Philips, Wilfried ; Goeman, Werner
Author_Institution :
Dept. of Telecommun. & Inf. Process., Ghent Univ., Belgium
Abstract :
We analyze if the presence of corners in very high resolution (VHR) satellite images can give us an indication on the type of structure present in a scene (man-made versus natural structures). Two the corner detectors are validated in this respect: Harris and SUSAN. The detection performance is evaluated over a spectrum of spatial resolutions for current and future VHR systems (from 2 meters to 17 centimeters). The ground truth of this study consists of annotated image extracts containing different types of man-made structures, in which the relevant corners have been identified.
Keywords :
edge detection; feature extraction; geophysical signal processing; image resolution; object recognition; terrain mapping; Harris; SUSAN; corner detectors; man-made structure extraction; spatial resolution; urban areas; very high resolution satellite images; Data mining; Detectors; Image edge detection; Image resolution; Layout; Object detection; Performance analysis; Satellites; Spatial resolution; Urban areas;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2005. IGARSS '05. Proceedings. 2005 IEEE International
Print_ISBN :
0-7803-9050-4
DOI :
10.1109/IGARSS.2005.1526151
