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Using high resolution satellite imagery to improve sweet potato crop statistics in Uganda L. Claessens, P. Zorogastúa, R. Quiroz, M. Potts & S. Namanda.

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Presentation on theme: "Using high resolution satellite imagery to improve sweet potato crop statistics in Uganda L. Claessens, P. Zorogastúa, R. Quiroz, M. Potts & S. Namanda."— Presentation transcript:

1 Using high resolution satellite imagery to improve sweet potato crop statistics in Uganda L. Claessens, P. Zorogastúa, R. Quiroz, M. Potts & S. Namanda

2 Introduction Study area : characteristics Physical bases of remote sensing Imagery Digital image processing Results Conclusions

3 AFRICA

4 UGANDA

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6 Introduction Study area : characteristics Physical bases of remote sensing Imagery Digital image processing Results Conclusions

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9 Source: FAO

10 Introduction Study area : characteristics Physical bases of remote sensing Imagery Digital image processing Results Conclusions

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13 B RGNEAR IRMID INFRARED Wavelength in nanometers % Reflectance water Green vegetation Dry vegetation Soil Generic spectral signatures

14 Introduction Study area : characteristics Physical bases of remote sensing Imagery Digital image processing Results Conclusions

15 SPOT Satellite Source:

16 SOURCE: SPOTIMAGE-CNESS Kumi Spot Image 06-May-06

17 Introduction Study area : characteristics Physical bases of remote sensing Imagery Digital processing Results Conclusions

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20 Introduction Study area : characteristics Physical bases of remote sensing Imagery Digital image processing Results Conclusions

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23 Sweet potato plot Distribution of Sweet potato fields around Kumi town

24 Introduction Study area : characteristics Physical bases of remote sensing Imagery Digital image processing Results Conclusions

25 Kumi Land cover - land use

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27 THANKS THANKS

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