基于集成学习的计算机辅助诊断青光眼算法研究

在青光眼诊断中，眼底照和光学相干断层扫描（OCT）是最主要的两种眼科检查手段。对于眼底照和OCT图像数据，首先设计基于专家知识的机器学习算法，提取杯盘比曲线和视神经纤维层厚度曲线的尺度和形态特征，进而提出一种基于Dempster-Shafer（DS）证据推论的多视图集成学习方法，利用支持向量机（SVM）和逻辑回归进行青光眼预测。在一个真实数据集合上，对所提方法的预测性能进行了评估实验，结果表明，本文算法与眼科专家出具的诊断结果高度一致，并且比已有算法有更好的敏感性、特异性和更高的预测准确率。

Algorithms for computer-aided diagnosis of glaucoma based on ensemble learning

In the diagnosis of glaucoma, fundus images and optical coherence tomography (OCT) are the two types of eye examination that doctors pay most attention to. To enhance the analysis of fundus images and OCT reports which are also images, we have designed a machine learning algorithm based on expert knowledge to extract the scale and morphological characteristics of cup-to-disk ratio curves and retinal nerve fiber layer thickness curves. Furthermore, we propose a multi-view integrated learning method based on Dempster-Shafer (DS) evidence theory, and make glaucoma predictions based on support vector machines (SVM) and logistic regression. Finally, we evaluated the predictive performance of the proposed method using a real data set. The experimental results show that the proposed algorithm is highly consistent with the diagnostic results given by ophthalmologists, and achieves higher sensitivity, specificity and accuracy than existing algorithms.