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Prostate Multimodal MR Image Classification Method and System Based on Fovea Residual Network

A classification method and prostate technology, applied in the field of prostate multimodal MR image classification, can solve the problems of difficulty in extracting the features of human visual characteristics, low classification accuracy of prostate images, etc., and achieve the effects of improving classification accuracy and processing convergence speed.

Active Publication Date: 2022-06-21
HUAZHONG UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0007] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method and system for the classification of prostate multimodal MR images based on the fovea residual network, thereby solving the problems in the prior art that it is difficult to extract features that conform to the visual characteristics of the human eye , the technical problem of low accuracy of prostate image classification based on deep learning

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  • Prostate Multimodal MR Image Classification Method and System Based on Fovea Residual Network
  • Prostate Multimodal MR Image Classification Method and System Based on Fovea Residual Network
  • Prostate Multimodal MR Image Classification Method and System Based on Fovea Residual Network

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Embodiment 1

[0089] After the data prepared in step 1 is input into the network, the size is 224×224, the number of channels is 3, the training dataset has 1560 images for label 0 and label 1, and the validation dataset has 520 images for label 0 and label 1. .

[0090] Step 2 Design the number of fuzzy kernels in the fovea operator. According to the ResNet structure, the number of kernels is 64, 128, 256, 512, U_radius=4, 6, 8, 11, and the redundant fuzzy kernels are removed, so that UR= 64, 128, 256, 512.

[0091] Step 3 sets the ps of the pooling window to its minimum value, and fixes the size of all the resulting blur kernels to 3×3.

[0092] Step 4 modifies backpropagation according to the chain rule.

[0093] Step 5: Train the model. The batch size (BS) is optimized according to the training results. ResNet18 has BS=32, ResNet34 has BS=18, F-ResNet18 has BS=18, and F-ResNet34 has BS=19.

[0094] Step 6: Test the model. The test set contains 720 labels 0 and 582 labels 1. Finally, ...

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Abstract

The invention discloses a prostate multimode MR image classification method and system based on a fovea residual network, wherein the method includes: using the fuzzy kernel in the fovea operator to replace the convolution kernel of the residual network, thereby constructing the fovea Residual network; use the multimodal MR images of the prostate with class labels to train the fovea residual network to obtain the trained fovea residual network; use the fovea residual network to classify the prostate multimodal MR images to be classified, and obtain the classification result. Based on the visual characteristics of the human eye, the present invention designs a fovea operator, extracts the fuzzy kernel of the operator, and uses it to replace the convolution kernel in the residual network, thereby constructing a fovea deep learning network, which can extract features, thereby improving the classification accuracy of prostate multimodal MR images.

Description

technical field [0001] The invention belongs to the field of image classification, and more particularly, relates to a method and system for classifying prostate multimodal MR images based on a foveal residual network. Background technique [0002] Prostate cancer is the most common malignant tumor in the male reproductive system. According to the American Cancer Society report in 2018, prostate cancer ranks first in new cases and second in deaths in men. In recent years, with the significant improvement of people's living standards and changes in the age structure of the population, the incidence and mortality of prostate cancer in my country have shown a significant upward trend. [0003] MRI can reflect the changes of tissue and internal organ functions and biochemical metabolic reactions, and has the advantages of high-resolution imaging of soft tissue, and has important application value in the early diagnosis of prostate cancer. In recent years, more and more new MR i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V10/764G06V10/82G06K9/62G06N3/04G06N3/08A61B5/055
CPCG06N3/084A61B5/055A61B5/004A61B5/0033G06N3/043G06F18/2414
Inventor 张旭明王拓
Owner HUAZHONG UNIV OF SCI & TECH
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