Abd Elwahed, A., Farrag, F., Mostafa, Y. (2011). EVALUATION OF INFORMATION CONTENT AND FEATURE EXTRACTION CAPABILITY FROM EGYPT SAT 1 IMAGE. JES. Journal of Engineering Sciences, 39(No 3), 529-538. doi: 10.21608/jesaun.2011.127580
Abdelaal M. Abd Elwahed; Farrag A. Farrag; Yasser G. Mostafa. "EVALUATION OF INFORMATION CONTENT AND FEATURE EXTRACTION CAPABILITY FROM EGYPT SAT 1 IMAGE". JES. Journal of Engineering Sciences, 39, No 3, 2011, 529-538. doi: 10.21608/jesaun.2011.127580
Abd Elwahed, A., Farrag, F., Mostafa, Y. (2011). 'EVALUATION OF INFORMATION CONTENT AND FEATURE EXTRACTION CAPABILITY FROM EGYPT SAT 1 IMAGE', JES. Journal of Engineering Sciences, 39(No 3), pp. 529-538. doi: 10.21608/jesaun.2011.127580
Abd Elwahed, A., Farrag, F., Mostafa, Y. EVALUATION OF INFORMATION CONTENT AND FEATURE EXTRACTION CAPABILITY FROM EGYPT SAT 1 IMAGE. JES. Journal of Engineering Sciences, 2011; 39(No 3): 529-538. doi: 10.21608/jesaun.2011.127580
EVALUATION OF INFORMATION CONTENT AND FEATURE EXTRACTION CAPABILITY FROM EGYPT SAT 1 IMAGE
1Civil Eng. Dpt. Faculty of Engineering, Assiut University.
2Civil Eng. Dpt. Faculty of Engineering, Aljouf University, KSA.
3Civil Eng. Dpt. Faculty of Engineering, Sohag University
Abstract
Maps are fast and accurate information sources when it is required, to study and to develop projects in any region. In Egypt, many of the available maps are in an unsatisfactory scale and not updated. The availability of Egypt Sat1 satellite images, opened new possibilities for mapping and map updating. Egypt Sat1 is the first Egyptian earth observation satellite which was successfully put in orbit in 2007. It captures both multi-spectral and panchromatic images with resolution of 7.8 meters. The main objective of this study is to evaluate the potentials of information content in Egypt Sat1 images for extracting features in the context of updating of 1:25,000 topographic maps and to ascertain what features could be identified and mapped using visual interpretation techniques supported by supplementary data. Data used in this study are an image from Egypt Sat1satellite captured in 2009 and a topographic map, dated 1991, at scale 1:25,000 of the region of Assiut city and the surrounding. The investigation in Egypt Sat1 data focused on identification of urban features such as roads, railways, watercourses, bridges and boundaries of urban areas. ERDAS imagine 9.2 software was utilized, where qualitative and quantitative evaluations were performed for the informative content. The research results point to the potential of Egypt Sat1 images as a low cost alternative data source with field verification for the updating of topographic maps at scale 1:25,000.