一种基于双层超声导管的超声图像处理方法及装置、介质

By acquiring image data through a double-layer ultrasound catheter, and combining variational autoencoder and Gaussian mixture model to generate a synthetic image dataset, a multiplicative speckle noise denoising model is trained, which solves the problem of insufficient ultrasound image denoising accuracy in existing technologies and achieves more efficient noise suppression and image quality improvement.

CN122415380APending Publication Date: 2026-07-17HANGZHOU XINYING MEDICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ultrasound image denoising models struggle to effectively remove multiplicative noise in the absence of clean image labels, resulting in low denoising accuracy and impacting image quality and the accuracy of computer-aided diagnosis.

Method used

Image data is acquired using a double-layer ultrasound catheter. A synthetic image dataset is generated by combining a variational autoencoder and a Gaussian mixture model. A multiplicative speckle noise denoising model is trained, and the model is optimized using self-supervised and perceptual loss functions to gradually improve the denoising accuracy.

Benefits of technology

It effectively eliminates the distribution deviation between synthetic noise and real noise, provides a clear optimization direction and gradient backpropagation path, improves the denoising accuracy of ultrasound images and the adaptability of the model, and enhances image quality and diagnostic accuracy.

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Abstract

本发明涉及超声图像去噪技术领域,公开了一种基于双层超声导管的超声图像处理方法及装置、介质。该方法包括:通过双层超声导管获取超声图像,然后将超声图像输入到训练好的乘性斑点噪声去噪模型中,得到去噪超声图像;通过训练好的乘性斑点噪声去噪模型进行去噪,可以提高超声图像的去噪精度。其中,训练好的乘性斑点噪声去噪模型是通过两个阶段训练得到的;第一阶段是通过获取合成图像数据集,对模型的初步认识能力进行训练,在训练过程中,通过设置四种损失函数相互约束,并针对四种损失函数设置对应的算法调节,得到第一阶段模型;第二阶段训练是利用临床数据训练,并通过两种损失函数约束,让模型能够适应临床图像去噪。
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