Bin Zheng, Chen Yang, Xiaoping Ma, Libo Liu. Malignant Thyroid Nodule Detection Based on Circular Convolutional Neural Network[J]. Laser & Optoelectronics Progress, 2019, 56(24): 241003
- Laser & Optoelectronics Progress
- Vol. 56, Issue 24, 241003 (2019)
Fig. 1. Experimental procedure of circular CNN
Fig. 2. Ultrasound images of thyroid. (a) Original image; (b) noise-removal image; (c) region of interest
Fig. 3. Basic principle of circular CNN
Fig. 4. Structure of CNN-Fusion
Fig. 5. Activation function plots. (a) Sigmoid; (b) ReLUs
Fig. 6. Experimental data. (a) Accuracy rate; (b) Loss value
Fig. 7. Loss curves of ReLUs and Sigmoid functions
Fig. 8. Feature maps of ultrasound image of thyroid
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Table 1. Image numbers of thyroid classification
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Table 2. Comparison of classification results for good and malignancy
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