Warra flux tower UAV video

This video was acquired by a small quadcopter (DJI Vision+) during a TERN AusCover field campaign (2 – 6 Feb 2015) in the old growth forest of southern Tasmania. The footage is of the Warra flux tower, which towers at 80 m over a 50-60 m tall canopy of wet eucalyptus forest. The data was collected as part of an airborne hyperspectral campaign and field campaign to measure forest properties. See the following link this TERN media release for more information.

 

New publication on UAV landslide monitoring

Darren Turner (PhD student in the TerraLuma group), Prof. Steven de Jong (Utrecht University), and I just published a new paper in the journal Remote Sensing. The study looks at the use of UAV structure-from-motion (SfM) and image correlation techniques to monitor landslide deformation.

Turner, D., Lucieer, A., and de Jong, S.M. (2015). Time series analysis of landslide dynamics using an unmanned aerial vehicle (UAV). Remote Sensing. 7(2): 1736 – 1757; doi:10.3390/rs70201736 | Download PDF

 

Gimbal stabilisation of hyperspectral sensor

We developed a gimbal stabilisation system for the Headwall Photonics micro-Hyperspec. This brushless gimbal actively stabilises the pushbroom scanner to achieve smoother image acquisition. We also re-designed the CameraLink data recording system, and integrated the micro-Hyperspec with a dual frequency GPS unit, MEMS-based IMU, and machine vision camera (all sensors synchronised). The video below demonstrates the stabilisation of the gimbal. The wires need to be loose to reduce the resistance on the gimbal.

The original HyperUAS system is described in our publication here: Lucieer, A., Malenovsky, Z., Veness, T., Wallace, L. (2014). HyperUAS – Imaging spectroscopy from a multi-rotor unmanned aircraft system. Journal of Field Robotics, 31(4): 571-590. doi:10.1002/rob.21508 | Download PDF

The system shown in the video aims to overcome some of the limitations of the HyperUAS setup.