uav: sensors and remote sensing techniques for the small platform
DESCRIPTION
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.TRANSCRIPT
UAV: SENSORS AND REMOTE SENSING
TECHNIQUES FOR THE SMALL PLATFORM
Stephen Ambagis – Resource Mapping Hawaii
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.
What we use now
Answers
We needed to develop a UAV capacity that: Matched our plane based capacity for 1cm
ortho imageryCould fly in remote areasBe a reliable platform Have low cost replacement
The big deal
4cm Blobs
1cm Birds
RMH 1cm aerial imagery products300 acre island
4cm NIR false color composite
1cm natural color composite
Nesting greater black back gulls
Lots of Options
There are hundreds of different platforms
Hundreds of different sensors Many different software
Mission planningPlatform control Image processing Etc.
Turn key systems and DIY
Sensors
Platforms
Mission planning
Our solution thus far Medium sized fixed wing (fly slow / long
endurance) Small Sony (24mp)
Light weightLarge APS-C CMOS sensorFast firingLens optionsLight sensitive (programmable)
Open source software for planning and mission implementation
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