22
April
2013


Prize awarded for ANU photogrammetry work

A paper by Mark Shortis and Greg Burgess describing the SG4 photogrammetry has won first place in the 2013 John I. Davidson President's Award for Practical Papers. This award winner is selected by the president of the American Society of Photogrammetry and Remote Sensing (ASPRS), for the best practical paper published in the Society's journal, Photogrammetric Engineering & Remote Sensing, during 2012. The award and prize money were presented at the 2013 ASPRS conference, held in March 2013 in Baltimore.

Photogrammetry was used throughout the development and construction of the SG4 Big Dish. Firstly, the radius of curvature and slope error of individual mirror panels was measured after in-house manufacture. Photogrammetry was then used to measure and adjust the locations of the jig supports on which the dish was assembled, with measurement accuracy of better than +/- 0.3 mm across the 25 metre span. In order to achieve the desired viewing angles, photos were taken from a crane basket more than 30 metres above ground level. Finally, the mirror surface of the completed dish was measured, which determined the mirror panel pointing errors.

Associate Professor Mark Shortis of RMIT (co-creator of of VMS, the software used to process the images) gave key input into these three applications. The measurements were carried out by Greg Burgess, with assistance from Ashley Kearton, Paul Scott and John Garzoli.

M. Shortis and G. Burgess. Photogrammetric monitoring of the construction of a solar energy dish concentrator. Photogrammetric engineering and remote sensing, 78:519–527, 2012.

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