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Improving vessel segmentation in ultra-wide field-of-view retinal fluorescein angiograms

Improving vessel segmentation in ultra-wide field-of-view retinal fluorescein angiograms

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Authors

  • A. Perez-Rovira
  • K. Zutis
  • J. P. Hubschman
  • E. Trucco

Research units

Info

Original languageEnglish
Title of host publicationProceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC
Place of publicationNew York
PublisherIEEE Computer Society
Publication date2011
Pages2614-2617
Number of pages4
ISBN (Electronic)9781424441228
ISBN (Print)9781424441211
DOIs
StatePublished

Conference

Conference33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Abbreviated titleEMBC 2011
CountryUnited States
CityBoston
Period30/08/113/09/11

Abstract

Vessel segmentation on ultra-wide field-of-view fluorescein angiogram sequences of the retina is a challenging problem. Vessel appearance undergoes severe changes, as different portions of the vascular structure become perfused in different frames. This paper presents a method for segmenting vessels in such sequences using steerable filters and automatic thresholding. We introduce a penalization stage on regions with high vessel response in the filtered image, improving the detection of peripheral vessels and reducing false positives around the optic disc and in regions of choroidal vessels and lesions. Quantitative results are provided, in which the penalization stage improves the segmentation precision segmentation by 11.84%, the recall by 12.98% and the accuracy by 0.40%. To facilitate further evaluation, usage, and algorithm comparison, the algorithm, the data set used, the ground truth, and the results are made available on the internet.

Research outputs

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