Multiclass retinal disease classification and lesion segmentation in OCT B-scan images using cascaded convolutional networks

Disease classification and lesion segmentation of retinal optical coherence tomography images play important roles in ophthalmic computer-aided diagnosis. However, existing methods achieve the two tasks separately, which is insufficient for clinical application and ignores the internal relation of d...

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Veröffentlicht in:Applied optics (2004) 2020-11, Vol.59 (33), p.10312-10320
Hauptverfasser: Zhong, Pan, Wang, Jianlin, Guo, Yongqi, Fu, Xuesong, Wang, Rutong
Format: Artikel
Sprache:eng
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Zusammenfassung:Disease classification and lesion segmentation of retinal optical coherence tomography images play important roles in ophthalmic computer-aided diagnosis. However, existing methods achieve the two tasks separately, which is insufficient for clinical application and ignores the internal relation of disease and lesion features. In this paper, a framework of cascaded convolutional networks is proposed to jointly classify retinal diseases and segment lesions. First, we adopt an auxiliary binary classification network to identify normal and abnormal images. Then a novel, to the best of our knowledge, U-shaped multi-task network, BDA-Net, combined with a bidirectional decoder and self-attention mechanism, is used to further analyze abnormal images. Experimental results show that the proposed method reaches an accuracy of 0.9913 in classification and achieves an improvement of around 3% in Dice compared to the baseline U-shaped model in segmentation.
ISSN:1559-128X
2155-3165
1539-4522
DOI:10.1364/AO.409414