UAV: sensors and Remote sensing techniques for the small platform

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Using airplanes and helicopters for imagery collection is EXPENSIVE in remote areas.
Large aircraft carry large sensors that can image at large scales (3cm and less) and large areas with high accuracy
Small UAVs can image small areas at relatively small scales (4cm and up easily) with average accuracy.
Large aircraft have to fly high and in the clouds.

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UAV: sensors and Remote sensing techniques for the small platform

  1. 1. Stephen Ambagis – Resource Mapping Hawaii
  2. 2. The Problem  Using airplanes and helicopters for imagery collection is EXPENSIVE in remote areas.  Large aircraft carry large sensors that can image at large scales (3cm and less) and large areas with high accuracy  Small UAVs can image small areas at relatively small scales (4cm and up easily) with average accuracy.  Large aircraft have to fly high and in the clouds.
  3. 3. What we use now
  4. 4. Answers  We needed to develop a UAV capacity that:  Matched our plane based capacity for 1cm ortho imagery  Could fly in remote areas  Be a reliable platform  Have low cost replacement
  5. 5. The big deal 4cm Blobs 1cm Birds
  6. 6. RMH 1cm aerial imagery products 300 acre island 4cm NIR false color composite 1cm natural color composite
  7. 7. Nesting greater black back gulls
  8. 8. Lots of Options  There are hundreds of different platforms  Hundreds of different sensors  Many different software  Mission planning  Platform control  Image processing  Etc.  Turn key systems and DIY
  9. 9. Sensors
  10. 10. Platforms
  11. 11. Mission planning
  12. 12. Our solution thus far  Medium sized fixed wing (fly slow / long endurance)  Small Sony (24mp)  Light weight  Large APS-C CMOS sensor  Fast firing  Lens options  Light sensitive (programmable)  Open source software for planning and mission implementation
  13. 13. Economies of scale / Tradeoffs  Small sensors take more images for the same area as a large sensor  Small platforms fly slower  Accuracy  Processing time  Overhead costs

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