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Hybrid deep learning for detecting lung diseases from X-ray images
#MMPMID32835077
Bharati S
; Podder P
; Mondal MRH
Inform Med Unlocked
2020[]; 20
(?): 100391
PMID32835077
show ga
Lung disease is common throughout the world. These include chronic obstructive
pulmonary disease, pneumonia, asthma, tuberculosis, fibrosis, etc. Timely
diagnosis of lung disease is essential. Many image processing and machine
learning models have been developed for this purpose. Different forms of existing
deep learning techniques including convolutional neural network (CNN), vanilla
neural network, visual geometry group based neural network (VGG), and capsule
network are applied for lung disease prediction. The basic CNN has poor
performance for rotated, tilted, or other abnormal image orientation. Therefore,
we propose a new hybrid deep learning framework by combining VGG, data
augmentation and spatial transformer network (STN) with CNN. This new hybrid
method is termed here as VGG Data STN with CNN (VDSNet). As implementation tools,
Jupyter Notebook, Tensorflow, and Keras are used. The new model is applied to NIH
chest X-ray image dataset collected from Kaggle repository. Full and sample
versions of the dataset are considered. For both full and sample datasets, VDSNet
outperforms existing methods in terms of a number of metrics including precision,
recall, F0.5 score and validation accuracy. For the case of full dataset, VDSNet
exhibits a validation accuracy of 73%, while vanilla gray, vanilla RGB, hybrid
CNN and VGG, and modified capsule network have accuracy values of 67.8%, 69%,
69.5% and 63.8%, respectively. When sample dataset rather than full dataset is
used, VDSNet requires much lower training time at the expense of a slightly lower
validation accuracy. Hence, the proposed VDSNet framework will simplify the
detection of lung disease for experts as well as for doctors.