1. Image Data Pre- processing for Pacific Island Countries Poate Degei & Litia Gaunavou

2. User in Pacific Island Country Image Data Purchase SOPAC - SPC  Which data is available?  Which data is suitable?  Area delineation  License agreement  Import handling (customs, etc.)  Data quality check  Safety copy

3. Pre-Processing Bundle 1.Ortho-Correction 2.Atmospheric Correction 3.Pan-Sharpen “normal” colour 4.Pan-Sharpen false colour IR 5.Vegetation index NIR - RED NDVI = ------------------ NIR + RED

4. Image Stitching Stitched Image Image Tiles

5. Haze Removal Raw LandSat 4 TM (Fiji – 1991)Haze Corrected LandSat 4 TM

6. Atmospheric Correction Atmospheric Correction  View Angle  Sensor type  Calibration data  Sun angle  View Angle  Sensor type  Calibration data  Sun angle

7. Corrected Image Raw ALOS Image (Fiji 2007)ALOS Image + atmospheric correction

8. Pan-Sharpening Red Green Blue Panchromatic Image Data Blue Green Red Intensity Hue Saturation Hue Multi-spectral IMGPan-sharpened IMG IHS Resolution Merge

9. Pan-Sharpening WorldView-2: MS DataWorldView-2 PAN data

10. Pansharpen_123Pansharpen_234 Result

11. New Satellites, GeoEye-1 & WorldView-2 High geo-accuracy ~ 5m 1.Star tracker 2.Advanced GPS position Ortho Correction required to activate high geo-accuracy

12. Ortho Correction Orthocorrection requires a DTMOrthocorrection requires a DTM the DTM should have similar scale as image datathe DTM should have similar scale as image data

13. Inclusion of the Geoid - The sensor captures the image relative to the WGS84 ellipsoid…

16. FYI!!! - Digital Globe New Pricing: $16.95 US

17. Vinaka!