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  Analysis and evaluation of digital holographic recordings of marine plankton and other organisms and particles


   School of Biological Sciences

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Prof J Watson  No more applications being accepted  Competition Funded PhD Project (European/UK Students Only)

About the Project

Supervisors: Prof John Watson, Dr Alan Jamieson, Dr. David Meldrum

Background: PhDs are offered in University of Aberdeen, Oceanlab (www.oceanlab.abdn.ac.uk) funded by MASTS (www.masts.ac.uk/) in the field of “Platforms & Sensors” applying new technology to marine science jointly between the Colleges of Physical Sciences and Life Sciences & Medicine in the University of Aberdeen and a MASTS partner.

A digital holocamera, “eHoloCam”, developed in the School of Engineering at University of Aberdeen offers a unique method of non-destructive imaging of objects in 3D volumes of water over a large depth-of-field including 3D video capability and capture of phase (transparent) objects. It has been tested to 450 m depth in the North Sea and many hundreds of holographic videos have revealed species of interest including phytoplankton, arrow worms, jelly-fish larvae, and copepods over a wide range of sizes. Software has been developed for autofocusing of particles in the holovideos and their analysis. The student will also participate in trails of a new version of eHoloCam operating to 10,000 m depth in the Pacific Ocean.

The student will analyse archived holo-videos as well new deep water recordings, interpreting data and producing distribution maps of species and populations densities. He/she would also be expected to make contributions to further development of the analysis software.

References

Watson, J. (2011). 'Submersible digital holographic cameras and their application to marine science'. Optical Engineering, vol 50. [Online] DOI: 10.1117/1.3605678