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Maier ACEAS phenocams

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The document discusses using automatic digital cameras to measure canopy dynamics in a savanna woodland in Litchfield National Park, Australia. Two Wingscapes TimeLapse cameras were set up to take photos every 30 minutes over a 6 month period. The photos were analyzed using object oriented classification to study the effects of fire on the canopy. A next generation setup is proposed using an Android smartphone for its lower cost, built-in intelligence, and communication abilities.

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Measuring Canopy Dynamics in a Savanna Woodland using Automatic Digital Cameras Stefan W Maier Research Institute for the Environment and Livelihoods School of Environment Charles Darwin University, Darwin, Australia
1.5h drive south of Darwin Litchfield National Park: 1,461km2 conservation reserve monsoonal north of the Northern Territory annual rainfall ~1420mm (~90% December - March) Eucalypt open forest / woodland (E. miniata + E. tetrodonta) LTERN long term fire plots CDU leaf traps AusCover cal/val site (5x5km2 homogeneous area) OzFlux flux tower (2014) CDU tower based spectroradiometers (2014) Savanna Supersite Litchfield National Park - Location
Savanna Supersite Litchfield National Park - Vegetation
Savanna Supersite Litchfield National Park - Fire
Savanna Supersite Litchfield National Park - Post-Fire
Savanna Supersite Litchfield National Park - Leaf Fall
Savanna Supersite Litchfield National Park - Fire Damage
Savanna Supersite Litchfield National Park - Access Issues
Camera Setup 2 Wingscapes TimeLapse cameras 5M pixels 4 AA batteries approx. 6 months 8GB SD card horizontal + magic angle (57.5) photo every 30 min
Canopy Camera 2013/02/06 2013/08/01
Analysis Canopy Camera Object Oriented Classification (eCognition) fully automatic
Canopy Dynamics fire
Canopy Dynamics fire
Canopy Dynamics fire
Next Generation Camera android smartphone + python script + scheduler app 10W solar panel + SLA battery communication via 3G or WiFi build-in power saving intelligence
Conclusion Wingscapes TimeLapse cameras are easy to set up
Conclusion Wingscapes TimeLapse cameras are easy to set up frequent image capture makes automatic analysis easier
Conclusion Wingscapes TimeLapse cameras are easy to set up frequent image capture makes automatic analysis easier off-line modus no system health monitoring, data loss
Conclusion Wingscapes TimeLapse cameras are easy to set up frequent image capture makes automatic analysis easier off-line modus no system health monitoring, data loss automatic analysis requires refinement
Conclusion Wingscapes TimeLapse cameras are easy to set up frequent image capture makes automatic analysis easier off-line modus no system health monitoring, data loss automatic analysis requires refinement smartphone camera: cheap, intelligent, includes comms

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Maier ACEAS phenocams