Journal
JOURNAL OF HEALTHCARE ENGINEERING
Volume 2022, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2022/4182191
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Funding
- National Natural Science Foundation of China [62072121]
- Natural Science Foundation of Guangdong Province [2021A1515011847]
- Higher Education Reform Key Project of Hainan Province [Hnjg2018ZD-11]
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This paper proposes a lung disease detection neural network called CXR-RefineDet, which combines the advantages of RepVGG block and Resblock to design a strong feature extraction backbone network RRNet. By introducing an Information Reuse structure, the network's feature utilization is improved. Experimental results show that CXR-RefineDet achieves higher detection accuracy and inference speed compared to two-stage object detection algorithms using powerful backbone networks like ResNet-50 and ResNet-101, providing possibilities for the implementation of computer-aided diagnosis systems.
The workload of radiologists has dramatically increased in the context of the COVID-19 pandemic, causing misdiagnosis and missed diagnosis of diseases. The use of artificial intelligence technology can assist doctors in locating and identifying lesions in medical images. In order to improve the accuracy of disease diagnosis in medical imaging, we propose a lung disease detection neural network that is superior to the current mainstream object detection model in this paper. By combining the advantages of RepVGG block and Resblock in information fusion and information extraction, we design a backbone RRNet with few parameters and strong feature extraction capabilities. After that, we propose a structure called Information Reuse, which can solve the problem of low utilization of the original network output features by connecting the normalized features back to the network Combining the network of RRNet and the improved RefineDet, we propose the overall network which was called CXR-RefineDet. Through a large number of experiments on the largest public lung chest radiograph detection dataset VinDr-CXR, it is found that the detection accuracy and inference speed of CXR-RefineDet have reached 0.1686 mAP and 6.8 fps, respectively, which is better than the two-stage object detection algorithm using a strong backbone like ResNet-50 and ResNet-101. In addition, the fast reasoning speed of CXR-RefineDet also provides the possibility for the actual implementation of the computer-aided diagnosis system.
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