Open AccessStudy of the Effect of the Geometrical Correction of the Satellite Image on the Global Positioning System Tracking by Using Geographical Information System
Author(s) -
صباح حسين علي صباح حسين علي
Publication year - 2012
Publication title -
maǧalaẗ ǧameʼaẗ al-malīk abdul aziz. al-uʼlum al-handasiaẗ
Language(s) - English
Resource type - Journals
ISSN - 1319-1047
DOI - 10.4197/eng.23-2.9
Subject(s) - global positioning system , geodetic datum , image rectification , remote sensing , computer science , satellite , coordinate system , computer vision , geography , assisted gps , process (computing) , tracking (education) , artificial intelligence , rectification , geodesy , engineering , telecommunications , psychology , pedagogy , aerospace engineering , electrical engineering , voltage , operating system
The use of Global Positioning System (GPS) for geometricalcorrection (rectification) of the satellite imagery aims to establish therelation between the image coordinate system and the GPS readoutcoordinate system. By using this technique, the errors existing withinsatellite image can be calibrated and reduced as well.This paper introduces application of Geographical InformationSystem (GIS) and image processing software in addition to GPS formeasuring the coordinates of waypoints to be as ground control points(GCPs) for the geometrical correction process of the QuickBirdsatellite image for the adopted study area (Mosul City). Forcomparison purpose, the geodetic rectification process was also donefor the adopted QuickBird satellite image with respect to the IKONOSimagery. Due to the low standards in the geometric designcharacteristics of the road which badly affected the GPSmeasurements, the output results show that the geodetic rectificationof the QuickBird imagery with respect to IKONOS satellite imagegives more accuracy of results than GCP acquired by GPS. Theoverall procedure applied in the present study shows the ability to givean improvement in the positional accuracy of an alreadygeoreferenced coordinate system of the QuickBird image which inturn gives a higher accuracy of the GPS tracking path for the purposeof mapping, urban planning, cartography, survey and other GISapplications .