[1]YANG Xiaolan,QIANG Yan,ZHAO Juanjuan,et al.Hashing retrieval for CT images of pulmonary nodules based on medical signs and convolutional neural networks[J].CAAI Transactions on Intelligent Systems,2017,12(6):857-864.[doi:10.11992/tis.201706035]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
12
Number of periods:
2017 6
Page number:
857-864
Column:
学术论文—机器学习
Public date:
2017-12-25
- Title:
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Hashing retrieval for CT images of pulmonary nodules based on medical signs and convolutional neural networks
- Author(s):
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YANG Xiaolan1; QIANG Yan1; ZHAO Juanjuan1; DU Xiaoping2; ZHAO Wenting1
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1. College of Computer Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China;
2. PET/CT Center of Shanxi Coal Central Hospital, Taiyuan 030012, China
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- Keywords:
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pulmonary nodules; medical signs; convolutional neural networks; principal components analysis; semantic features; Hashing Function; adaptive; image retrieval
- CLC:
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TP391
- DOI:
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10.11992/tis.201706035
- Abstract:
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Existing pulmonary nodule retrieval methods have two problems; it is difficult to express the characteristics of pulmonary nodules using hand-crafted features and the generated hashing codes have poor retrieval performance. To address these issues, this paper proposes a retrieval method for pulmonary nodules in CT images based on medical signs and convolutional neural networks. We first constructed accurate hashing codes using an accurate training set based on the values of the nine signs of pulmonary nodules. We then extracted the important semantic features of pulmonary nodules using convolutional neural networks and principal components analysis. In addition, we inversely solved the hashing functions by combining the hashing codes with the accurate training set. Finally, we developed a retrieval method, based on adaptive bits, to achieve fast searching for pulmonary nodule images. Extensive experiments and evaluations on data sets show that the method has high accuracy and retrieval precision in the process of pulmonary nodule image retrieval.