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Data

Rear Seat Observer Survey

During the survey the RSO’s window-mounted cameras are used to verify herd size and ID - they are triggered by the human observer when he/she sees a target of interest (all elephants, and larger herds of any species). The aircraft flies straight lines (transects) back and forth over the target area.

  • These images are of lower quality as they are taken through the Plexiglas.
  • Most images are 24 megapixels (MP), taken at 35° down-angle from horizontal.
  • Very target-rich set of images which will produce many examples for training. This is because a human has triggered the camera on a target.
  • Around 20,000 images are currently available and being reviewed by the annotation lab.
  • GPS metadata is often not available (camera clocks not synchronized perfectly with GPS).
Figure 3: The aircraft flies straight lines (transects) back and forth over the target area during the aerial surveys.