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112735

NEW MODEL FOR ORTHORECTIFICATION OF EGYPT SAT-1 IMAGES

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Civil Engineering: structural, Geotechnical, reinforced concrete and s…nd sanitary engineering, Hydraulic, Railway, construction Management.

Abstract

Digital orthoimages are proving to be suitable for a variety of mapping, Geographic Information Systems (GIS) and environmental monitoring tasks. The quality of the extracted data from orthoimages depends mainly on the accuracy of the input data and the used mathematical models. The availability of the Egypt Sat-1 satellite images provide valuable source of remote sensing data in Egypt. Egypt Sat-1 is the first Egyptian earth observation satellite which was successfully put in orbit on 2007. The main aim of this research is to represent a rigorous sensor model approach applied to Egypt Sat-1 image for orthoimage productions. For this study an image level 1A from Egypt Sat-1 satellite captured in 2009 and a topographic map, dated 1991, at scale 1:25,000 of the region of Assiut city and the surrounding are used. Orthoimage are generated in two parallel stages. The first stage is generation of Digital Elevation Model (DEM) and the second stage is developing mathematical model for an image-to-object relationship. The results of these two stages are integrated to generate the orthoimage proposed in two steps. The first step is the determination of image coordinates (in the original image plane) corresponding to the DEM grid points. The second step is assigning a gray value for these pixels. The results of this study demonstrate the possibility to orthorectify Egypt Sat-1 images to sub-pixel accuracy. Orthoimages that were generated from Egypt Sat-1 satellite images can contribute significantly to image map production and to GIS applications.

DOI

10.21608/jesaun.2012.112735

Keywords

Egypt Sat-1, DEM, orientation, Orthoimage

Authors

First Name

Yasser G.

Last Name

Mostafa

MiddleName

-

Affiliation

Civil Eng. Dpt. Faculty of Engineering, Sohag University

Email

yasser_g_m@yahoo.com

City

-

Orcid

0000-0003-4789-5705

First Name

Farrag A.

Last Name

Farrag

MiddleName

-

Affiliation

Civil Eng. Dpt. Faculty of Engineering, Aljouf University, KSA.

Email

dr_farrag@yahoo.com

City

-

Orcid

-

First Name

Ahmed A.

Last Name

Abdelhafiz

MiddleName

-

Affiliation

Civil Eng. Dpt. Faculty of Engineering, Assiut University.

Email

a.abdelhafiz@yahoo.com

City

-

Orcid

-

First Name

Abdelaal M.

Last Name

Abd Elwahed

MiddleName

-

Affiliation

Civil Eng. Dpt. Faculty of Engineering, Assiut University.

Email

a.m.whd@aun.edu.eg

City

-

Orcid

-

Volume

40

Article Issue

No 2

Related Issue

16840

Issue Date

2012-03-01

Receive Date

2011-10-27

Publish Date

2012-03-01

Page Start

311

Page End

325

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 40_Issue No 2_Pages 311-325.pdf

PDF . 457.2kB

Link

https://jesaun.journals.ekb.eg/article_112735.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=112735

Order

1

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

NEW MODEL FOR ORTHORECTIFICATION OF EGYPT SAT-1 IMAGES

Details

Type

Article

Created At

23 Jan 2023