Detection of Microaneurysms in Fundus Images Based on an Attention Mechanism.

Abstract:

:Microaneurysms (MAs) are the earliest detectable diabetic retinopathy (DR) lesions. Thus, the ability to automatically detect MAs is critical for the early diagnosis of DR. However, achieving the accurate and reliable detection of MAs remains a significant challenge due to the size and complexity of retinal fundus images. Therefore, this paper presents a novel MA detection method based on a deep neural network with a multilayer attention mechanism for retinal fundus images. First, a series of equalization operations are performed to improve the quality of the fundus images. Then, based on the attention mechanism, multiple feature layers with obvious target features are fused to achieve preliminary MA detection. Finally, the spatial relationships between MAs and blood vessels are utilized to perform a secondary screening of the preliminary test results to obtain the final MA detection results. We evaluated the method on the IDRiD_VOC dataset, which was collected from the open IDRiD dataset. The results show that our method effectively improves the average accuracy and sensitivity of MA detection.

journal_name

Genes (Basel)

journal_title

Genes

authors

Zhang L,Feng S,Duan G,Li Y,Liu G

doi

10.3390/genes10100817

subject

Has Abstract

pub_date

2019-10-17 00:00:00

issue

10

issn

2073-4425

pii

genes10100817

journal_volume

10

pub_type

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