The invention discloses a tTarget detection method of a convolutional neural network based on pyramid input gain
A convolutional neural network, target detection technology, applied in biological neural network model, neural architecture, image enhancement and other directions, can solve the problems of low reliability and high missed detection rate, to ensure accuracy, solve accuracy decline, high robustness awesome effect
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[0051] According to the method steps described in the summary of the invention, a PiaNet network model structure corresponding to an embodiment of the present invention for detecting pulmonary nodules on CT images is as follows figure 1 shown.
[0052] Step (1) data preprocessing;
[0053] The original image is preprocessed by de-meaning and grayscale normalization to obtain the preprocessed image, where the original CT input image is as figure 2 shown;
[0054] Step (2) inputs the preprocessed image output of step (1) into the PiaNet network;
[0055] Step (2) comprises the following sub-steps again:
[0056] Step (2A) The input image is subjected to an average pooling operation on the source connection path to obtain a compressed source image. Among them, the multi-scale source image generated by multi-level average pooling can form an image pyramid, such as image 3 shown;
[0057] Step (2B) At the same time, the input image undergoes feature extraction through convo...
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