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Complex blood vessel segmentation method based on neural network

A neural network and blood vessel technology, applied in neural learning methods, biological neural network models, neural architectures, etc., can solve problems such as class imbalance and data scarcity, achieve low cost, improve segmentation efficiency, and be suitable for popularization and use

Pending Publication Date: 2021-05-28
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of neural networks to segment blood vessel images has certain limitations, including data scarcity and class imbalance.

Method used

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  • Complex blood vessel segmentation method based on neural network
  • Complex blood vessel segmentation method based on neural network
  • Complex blood vessel segmentation method based on neural network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]Seefigure 1 A method of dividing a complex blood vessel based on a neural network, comprising the following steps:

[0037]Step 1: Preprocessing the original medical image image data set, labeled a mask diagram corresponding to each original image to obtain a homemade brain vascular data Coro and ELE, respectively 40, respectively, each pair of pictures including an original map and Corresponding marker mask diagram;

[0038]Step 2: Transform the original image and its corresponding mask map through the PATCH-based data enhancement method input into the split network, perform depth network model training, obtained PATCHES is the size of the random 48 * 48 resolution from the original image Variety;

[0039]Step 3: Output prediction results according to the training parameters obtained after network training, and perform results assessment.

[0040]In this embodiment, only a small amount of data set can complete the segmentation of the vascular image. Based on the depth neural network netw...

Embodiment 2

[0042]The present embodiment is the same as that of the examples, and the particulars are as follows:

[0043]The pretreatment of the step 1 includes the following operations:

[0044]1-1: Adjust the resolution of the original image of 565 × 584 pixels;

[0045]1-2: Binarize the original image to get a binary map;

[0046]1-3: Mark the two-value map to get a binary marker mask, 1 represents a blood vessel structure, 0 represents a picture background;

[0047]1-4: Half of the data set will be used for training, half is used for testing, and then extract 10% from the test concentration for verification.

[0048]The network model training of the step 2 includes the following operations:

[0049]2-1: The split network consists of two consecutive U-Net, each U-NET is 5 floors, and the original image in the data set and the corresponding mask map are enhanced after the PATCH-based data enhancement method. Training, eventually get predicted, complete network structurefigure 2 ;

[0050]2-2: The first U-name is to...

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Abstract

The invention relates to a complex blood vessel segmentation method based on a neural network. The method can accurately segment a blood vessel structure, and comprises the following three steps: firstly, preprocessing an original medical image data set, and marking a mask pattern corresponding to each original image; then inputting the original image and the mask pattern corresponding to the original image into the segmentation network through a patch-based data enhancement method, and carrying out deep network model training; and outputting a prediction result according to training parameters obtained after network training. The prediction result obtained by the method is compared with the results of a plurality of advanced networks. The comparison result shows that compared with an existing method, the method has the advantages that the segmentation precision and efficiency are remarkably improved, and the method has very high clinical application value.

Description

Technical field[0001]The present invention relates to the field of medical image segmentation and computer network technology, and more particularly to a segmentation method for complicated blood vessels based on neural networks.Background technique[0002]Always, how to achieve automated analysis and processing of medical images is a hot research topic in the field of computer graphics. However, due to the complexity of the medical image itself and the results of high precision requirements, the automation algorithm in this field cannot meet clinical needs.[0003]The current medical image analysis work is mainly completed by experienced doctors, and automation analysis can only be supplemented. Then, for the radiologist, artificial analysis requires great workload, which has a long time, and its results have strong objectivity. Therefore, in order to reduce the workload of the doctor, improve the efficiency of the work, it is difficult to automatically divide an algorithm that can aut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/11G06N3/04G06N3/08
CPCG06T7/0012G06T7/11G06N3/08G06T2207/10081G06T2207/10088G06T2207/20081G06T2207/20084G06T2207/30101G06N3/047G06N3/045
Inventor 黄东晋尹丽雯郭昊刘金华
Owner SHANGHAI UNIV