Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning
Introduction of geo-visualisation tools over the internet such as Google Earth (GE) has cut down the cost of data acquisition. This study is undertaken to validate the geo-information provided by GE that could be used for geospatial work. Satellite images and latitude-longitude coordinates (X-Y) for...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Published: |
Faculty of Science, University of Malaya
2007
|
| Subjects: |
| _version_ | 1796944762263044096 |
|---|---|
| author | Redzwan, Ghufran Ramli, M.F. |
| author_facet | Redzwan, Ghufran Ramli, M.F. |
| author_sort | Redzwan, Ghufran |
| collection | UM |
| description | Introduction of geo-visualisation tools over the internet such as Google Earth (GE) has cut down the cost of data acquisition. This study is undertaken to validate the geo-information provided by GE that could be used for geospatial work. Satellite images and latitude-longitude coordinates (X-Y) for the campus of the University of Malaya has been downloaded from the internet. Geo-referencing of the satellite image was carried out using the relative positioning (RP) and absolute positioning (AP) within the geographic information system environment. Sources of X-Y for AP were obtained from GE and a topography map provided by the Malaysian Survey and Mapping Department. For absolute positioning, the data was obtained using GPS equipment. Comparison of these sources was undetaken with the total residual mean square error (RMSE) of X-Y in the map and at the source. All sources of X-Y had produced the total RMSE within 0.00014 degree. Considering the total RMSE as standard deviation (SD), the resulting range of error for geo-referencing of the satellite image was within 15 m. Thus, it can be concluded that geo-information from GE can be used as the source of base map. |
| first_indexed | 2024-03-06T05:06:32Z |
| format | Article |
| id | um.eprints-1765 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:06:32Z |
| publishDate | 2007 |
| publisher | Faculty of Science, University of Malaya |
| record_format | dspace |
| spelling | um.eprints-17652021-04-27T08:04:19Z http://eprints.um.edu.my/1765/ Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning Redzwan, Ghufran Ramli, M.F. QA75 Electronic computers. Computer science Introduction of geo-visualisation tools over the internet such as Google Earth (GE) has cut down the cost of data acquisition. This study is undertaken to validate the geo-information provided by GE that could be used for geospatial work. Satellite images and latitude-longitude coordinates (X-Y) for the campus of the University of Malaya has been downloaded from the internet. Geo-referencing of the satellite image was carried out using the relative positioning (RP) and absolute positioning (AP) within the geographic information system environment. Sources of X-Y for AP were obtained from GE and a topography map provided by the Malaysian Survey and Mapping Department. For absolute positioning, the data was obtained using GPS equipment. Comparison of these sources was undetaken with the total residual mean square error (RMSE) of X-Y in the map and at the source. All sources of X-Y had produced the total RMSE within 0.00014 degree. Considering the total RMSE as standard deviation (SD), the resulting range of error for geo-referencing of the satellite image was within 15 m. Thus, it can be concluded that geo-information from GE can be used as the source of base map. Faculty of Science, University of Malaya 2007 Article PeerReviewed Redzwan, Ghufran and Ramli, M.F. (2007) Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning. Malaysian Journal of Science, 26 (2). pp. 135-141. ISSN 1394-3065, http://myais.fsktm.um.edu.my/2436/ |
| spellingShingle | QA75 Electronic computers. Computer science Redzwan, Ghufran Ramli, M.F. Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning |
| title | Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning |
| title_full | Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning |
| title_fullStr | Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning |
| title_full_unstemmed | Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning |
| title_short | Geo-referencing the Satellite Image from Google Earth by Relative and Absolute Positioning |
| title_sort | geo referencing the satellite image from google earth by relative and absolute positioning |
| topic | QA75 Electronic computers. Computer science |
| work_keys_str_mv | AT redzwanghufran georeferencingthesatelliteimagefromgoogleearthbyrelativeandabsolutepositioning AT ramlimf georeferencingthesatelliteimagefromgoogleearthbyrelativeandabsolutepositioning |