Coconut Inventory Activities Supported by UAV
description
Transcript of Coconut Inventory Activities Supported by UAV
![Page 1: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/1.jpg)
Coconut Inventory Activities Supported by UAV
GIS&RS User MeetingSuva 24th June 2014Test conducted by Teja Kattenborn
![Page 2: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/2.jpg)
Palm Resource Mappingwith VHR Satellite Images
A. Separation of coconut palm from other vegetation possible
B. Density stratification is possibleC. Counting is possible in scattered and
semi dense stands with 95% accuracy (dense underestimation)
D. Field work necessary but reduced to statistical minimum
![Page 3: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/3.jpg)
Display VHR Image Data
Texture of pan-sharpened VHR image data allows to separate palm and natural forest
![Page 4: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/4.jpg)
Delineation of Palm Density50 x 50 m grid helps interpretation
![Page 5: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/5.jpg)
Counting Palms in Plots• Placing a dot on top of every visible palm
• Digital overlay with grid and counting in MapInfo (GIS software) dots per grid cell
• Transfer to Access
![Page 6: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/6.jpg)
Counting in MapInfo
MapInfo automatically counts the number of palms within the plots using SQL select
SQL Result
![Page 7: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/7.jpg)
Field Sample Plots Needed
• Counting palms / hectare in dense stands• Counting amount of hybrids• Estimation coconut production • Recording extent of diseases • Estimation of palm age • Estimation of timber volume (diametre
and height)
50 – 100% under estimation ofpalms / hectare in dense stands
![Page 8: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/8.jpg)
Copter Type UAV• Good quality camera• Camera can swing to oblique view
![Page 9: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/9.jpg)
Structure of Coconut Stands
![Page 10: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/10.jpg)
Stitched Image
![Page 11: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/11.jpg)
Oblique View
![Page 12: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/12.jpg)
3D Space
Visual interpretation possibleSemi automatic palm counting possible
![Page 13: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/13.jpg)
Point Cloud
![Page 14: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/14.jpg)
Practical Solution?
• Method seems to work• Will reduce but NOT replace field
work• Total cost has to match the cost of
field work can be reduced
![Page 15: Coconut Inventory Activities Supported by UAV](https://reader035.fdocuments.us/reader035/viewer/2022070419/56815b69550346895dc96079/html5/thumbnails/15.jpg)
Thanks