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Robust detection of microaneurysms for sight threatening retinopathy screening
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Bhalerao, Abhir, Patanaik, Amiya, Anand, Sarabjot Singh and Saravanan, Ponnusamy (2008) Robust detection of microaneurysms for sight threatening retinopathy screening. In: 6th Indian Conference on Computer Vision, Graphics and Image Processing, Bhubaneswar, India, Dec 16-19 2008. Published in: Sixth Indian Conference on Computer Vision, Graphics & Image Processing, ICVGIP 2008 pp. 520-527. ISBN 9781424442195. doi:10.1109/ICVGIP.2008.25
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Official URL: http://dx.doi.org/10.1109/ICVGIP.2008.25
Abstract
Diabetic retinopathy is one of the major causes of blindness. However diabetic retinopathy does not usually cause a loss of sight until it has reached an advanced stage. The earliest sign of the disease are microaneurysms (MA) which appear as small red dots on retinal fundus images. Various screening programmes have been established in the UK and other countries to collect and assess images on a regular basis, especially in the diabetic population. A considerable amount of time and money is spent in manually grading these images, a large percentage of which are normal. By automatically identifying the normal images, the manual workload and costs could be reduced greatly while increasing the effectiveness of the screening programmes. A novel method of microaneurysm detection from digital retinal screening images is proposed. It is based on filtering using complex-valued circular-symmetric filters, and an eigen-image, morphological analysis of the candidate regions to reduce the false-positive rate. We detail the image processing algorithms and present results on a typical set of 89 image from a published database. Our method is shown to have a best operating sensitivity of 82.6% at a specificity of 80.2% which makes it viable for screening. We discuss the results in the context of a model of visual search and the ROC curves that it can predict.
| Item Type: | Conference Item (Paper) | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QA Mathematics R Medicine > RC Internal medicine R Medicine > RE Ophthalmology |
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| Divisions: | Faculty of Science > Computer Science | ||||
| Library of Congress Subject Headings (LCSH): | Diabetic retinopathy, Aneurysms, Retina -- Imaging, Medical screening | ||||
| Journal or Publication Title: | Sixth Indian Conference on Computer Vision, Graphics & Image Processing, ICVGIP 2008 | ||||
| Publisher: | IEEE Computer Society | ||||
| ISBN: | 9781424442195 | ||||
| Official Date: | 2008 | ||||
| Dates: |
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| Number of Pages: | 8 | ||||
| Page Range: | pp. 520-527 | ||||
| DOI: | 10.1109/ICVGIP.2008.25 | ||||
| Status: | Not Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Conference Paper Type: | Paper | ||||
| Title of Event: | 6th Indian Conference on Computer Vision, Graphics and Image Processing | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Bhubaneswar, India | ||||
| Date(s) of Event: | Dec 16-19 2008 | ||||
| Related URLs: |
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