Abstract
We address the problem of identifying dry areas in the tear film as part of a diagnostic tool for dry-eye syndrome. The requirement is to identify and measure the growth of the dry regions to provide a time-evolving map of degrees of dryness. We segment dry regions using a multi-label graph-cut algorithm on the 3D spatio-temporal volume of frames from a video sequence. To capture the fact that dryness increases over the time of the sequence, we use a time-asymmetric cost function that enforces a constraint that the dryness of each pixel monotonically increases. We demonstrate how this increases our estimation’s reliability and robustness. We tested the method on a set of videos and suggest further research using a similar approach.
National ICT Australia is funded by the Australian Government’s Backing Australia’s Ability initiative, in part through the Australia Research Council.
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Yedidya, T., Carr, P., Hartley, R., Guillon, JP. (2009). Enforcing Monotonic Temporal Evolution in Dry Eye Images. In: Yang, GZ., Hawkes, D., Rueckert, D., Noble, A., Taylor, C. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI 2009. MICCAI 2009. Lecture Notes in Computer Science, vol 5762. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04271-3_118
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DOI: https://doi.org/10.1007/978-3-642-04271-3_118
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