International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
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Volume 95 - Issue 10 |
Published: June 2014 |
Authors: S. A. Mohamed, A. K. Helmy, M. A. Fkirin, S. M. Badway |
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S. A. Mohamed, A. K. Helmy, M. A. Fkirin, S. M. Badway . A Proposed Method to Measure Sub Pixel Shift in Egyptsat-1 Aliased Images. International Journal of Computer Applications. 95, 10 (June 2014), 4-10. DOI=10.5120/16628-6488
@article{ 10.5120/16628-6488, author = { S. A. Mohamed,A. K. Helmy,M. A. Fkirin,S. M. Badway }, title = { A Proposed Method to Measure Sub Pixel Shift in Egyptsat-1 Aliased Images }, journal = { International Journal of Computer Applications }, year = { 2014 }, volume = { 95 }, number = { 10 }, pages = { 4-10 }, doi = { 10.5120/16628-6488 }, publisher = { Foundation of Computer Science (FCS), NY, USA } }
%0 Journal Article %D 2014 %A S. A. Mohamed %A A. K. Helmy %A M. A. Fkirin %A S. M. Badway %T A Proposed Method to Measure Sub Pixel Shift in Egyptsat-1 Aliased Images%T %J International Journal of Computer Applications %V 95 %N 10 %P 4-10 %R 10.5120/16628-6488 %I Foundation of Computer Science (FCS), NY, USA
This paper presents a method for image-based shift measurement and investigates solution for the mismatched bands of egyptsat-1 satellite. A tiny error in measuring sub pixel shift leads to an incorrect image focusing. Different methods, using frequency approach are conducted with different Tukey window sizes for measuring the sub pixel shift. The present method use an aim to select most important frequency for three parameter; horizontal, vertical and rotation with different window size. To test the present method; we used the SPOT-5 satellite data with known displacement. The obtained results are acceptable, and might solve Egyptsat-1 problem of mismatches between its bands. Bands 1, 2 could also be used in super resolution reconstruction methods