Detection of pulmonary nodules on chest x ray images using R CNN
Burdens of doctors for chest X ray (CXR) examination have increased because number of X ray images increases. Furthermore, since diagnosis is based on the experience and subjectivity of them, there is a possibility that a misdiagnosis may occur. Therefore, we performed Computer Aided Diagnosis (CAD) In this study, we detected pulmonary nodules using R CNN (Region with Convolutional Neural Network)[1] which is a kind of Deep Learning. First, we created CNN (Convolutional Neural Network) which classified data into classes of nodule opacities and nonnodule opacities. Next, we detected the object candidate regions from the chest X ray images by Selective Search[2] and applied the CNN to the candidate regions to classify them and estimate the detailed position of the object. Thus, we propose a method to detect pulmonary nodules from the chest X ray images.
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