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Ultrasonic image segmentation method

An ultrasonic image and variational method technology, applied in the field of image processing, can solve problems such as wrong segmentation results, low gray scale, edge leakage, etc., and achieve the effect of improving detection ability and accurate segmentation results

Active Publication Date: 2019-04-16
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

Scholars have proposed different improved distance regularization models for different medical image application examples, but for ultrasound images with severe speckle noise, low gray contrast, and weak edges, edge leakage is still prone to occur, causing wrong segmentation results

Method used

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0044] The core idea of ​​the present invention is to propose an ultrasonic image segmentation method based on multi-scale filtering and weak edge detection to provide accurate tumor edge contour information for doctors during HIFU treatment operations. Advantages of the present invention are as follows:

[0045] Using the method of multi-scale filtering avoids the shortcomings caused by manual selection of Gaussian standard deviation. While effectively filtering, it has a certain ability to enhance the edge details of the image; use the Laplacian operator under multi-scale filtering to construct The balloon force factor of the evolution model eliminates the defect of one-way evolution, and enhances the weak edge detection ability of the image while realizing two-way evolution; compared with the traditional distance-regular item level set evolution mode...

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Abstract

The invention discloses an ultrasonic image segmentation method. Implementation steps are as follows: implementation steps are as follows: first of all, ultrasound images are read, secondly, manuallyinitializing an edge contour curve; An edge detection function of an image and a balloon force factor of an evolution model are constructed by using a multi-scale filtering method; according to the ultrasonic image edge contour segmentation method, the multi-scale filtering method and the improved balloon force factor are used, the edge leakage phenomenon caused by the weak edge problem in the ultrasonic image is avoided, and the segmentation precision of the ultrasonic image is improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an ultrasonic image segmentation method. Background technique [0002] High Intensity Focused Ultrasound (HIFU) ablation technology, as a medical technology for treating tumors in vitro, has the advantages of non-invasiveness, significant therapeutic effect, small side effects, and fast postoperative recovery. With the development of imaging, it has been gradually applied in The field of clinical treatment of tumors. During HIFU treatment, a surgical guidance system needs to be used to provide doctors with a visualized surgical environment. Due to the characteristics of real-time ultrasound imaging, low cost, and no radiation damage to the human body, the HIFU guidance system based on ultrasound images has been widely used. Accurate segmentation of ultrasound tumor images is the key to the success of HIFU surgery. However, affected by the mechanism of ultrasound imaging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/12G06T7/13
CPCG06T7/12G06T7/13G06T2207/20024G06T2207/10132G06T2207/30096
Inventor 赵文成刘小毅王芳赵宇张满超蒋锴
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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