Pulmonary nodule detection method based on convolutional neural network
A technology of convolutional neural network and detection method, applied in the direction of neural learning method, biological neural network model, neural architecture, etc., can solve the problems of cumbersome steps, heavy workload, slow processing speed, etc., to reduce the number of parameters and accurately classify effects, performance-enhancing effects
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[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] The present invention has constructed a kind of pulmonary nodule detection method based on convolutional neural network, and concrete steps are as follows:
[0029] Step 1: Segment the lung parenchyma
[0030] The 3D U-Net network was used to segment the lungs to extract the lung parenchyma, and the obtained 3D image of the lung parenchyma was divided into two-dimensional slice images according to the Z axis. The encoding module of the 3D U-Net network includes 5 sets of convolutions and 4 downsampling operations. The corresponding decoding part also includes 4 sets of convolutions and 4 upsampling operations.
[0031] The decoding part adopts the method of skip connection to splicing the encoded high-level semantic information and the decoded low-level semantic information to ensure that the final fused feature map incorpora...
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