Comparison of sorting algorithms to increase the range of Hartmann-Shack aberrometry
Phillip Bedggood, Andrew Metha
JOURNAL OF BIOMEDICAL OPTICS | SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS | Published : 2010
Recently many software-based approaches have been suggested for improving the range and accuracy of Hartmann-Shack aberrometry. We compare the performance of four representative algorithms, with a focus on aberrometry for the human eye. Algorithms vary in complexity from the simplistic traditional approach to iterative spline extrapolation based on prior spot measurements. Range is assessed for a variety of aberration types in isolation using computer modeling, and also for complex wavefront shapes using a real adaptive optics system. The effects of common sources of error for ocular wavefront sensing are explored. The results show that the simplest possible iterative algorithm produces comp..View full abstract
Related Projects (1)
Awarded by Australian Research Council
This work was supported by the Australian Research Council (Discovery Project Grant DP0984649), and the Rowden White Benevolent Bequest.