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- W2724110074 abstract "Digital images often suffer from contrast variability and non-uniform illumination, which seriously affect the evaluation of biomarkers such as the arteriolar to venular ratio. This biomarker provides valuable information about many pathological conditions such as diabetes, hypertension etc. Hence, in order to efficiently estimate the biomarkers, correct classification of retinal vessels extracted from digital images, into arterioles and venules is an important research problem. This paper presents an unsupervised retinal vessel classification approach which utilises the multiscale self-quotient filtering, to pre-process the input image before extracting the discriminating features. Thereafter the squared-loss mutual information clustering method is used for the unsupervised classification of retinal vessels. The proposed vessel classification method was evaluated on the publicly available DRIVE and INSPIRE-AVR databases. The proposed unclassified framework resulted in 93.2 and 88.9% classification rate in zone B for the DRIVE and the INSPIRE-AVR dataset respectively. The proposed method outperformed other tested methods available in the literature. Retinal vessel classification, in an unsupervised setting is a challenging task. The present framework provided high classification rate and therefore holds a great potential to aid computer aided diagnosis and biomarker research." @default.
- W2724110074 created "2017-07-14" @default.
- W2724110074 creator A5028367358 @default.
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- W2724110074 date "2017-07-05" @default.
- W2724110074 modified "2023-09-25" @default.
- W2724110074 title "Multiscale self-quotient filtering for an improved unsupervised retinal blood vessels characterisation" @default.
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- W2724110074 doi "https://doi.org/10.1007/s13534-017-0040-5" @default.
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