Recent UAV Surveys
As well as providing seabed mapping services with our ASV, 4D Ocean conduct very high resolution topographic surveys using senseFly eBee UAVs. Recent surveys have included Pagham Spit, Seaford Head, Wembury Bay and Cuckmere Haven.
It isn't just click & go with Pix4D as there are numerous false returns where the camera can see into the water. Sometimes they are valid but there are many that aren't. These erroneous points can be rejected, like bathymetry data, using the QPS software package Qimera.