Method and system for reconstruction of ultrasonic images

Abstract

The invention discloses a method and a system for reconstruction of ultrasonic images. A construction method of an image reconstruction network model comprises the following steps of obtaining a training sample set, wherein the training sample set comprises a plurality of sample pairs, each sample pair comprises a group of ultrasonic radio frequency training data and a corresponding training grayscale image, and the ultrasonic radio frequency training data is obtained according to natural images and / or medical images; constructing a generative adversarial network model, wherein the generativeadversarial network model comprises a generator and a judger; utilizing the training sample set to train the generative adversarial network model, enabling the generative adversarial network model toreach Nash equilibrium, and using the generator under the Nash equilibrium state as the image reconstruction network model for the reconstruction of the ultrasonic images. The method disclosed by theinvention has the advantage that the natural images and medical images with resolution far higher than the resolution of ultrasonic images are used as the data basis for training the generative adversarial network model, the parameters are automatically learned and optimized by the generative adversarial network model, and the mapping relationship between the raw data and the ultrasonic images isobtained, so as to effectively improve the imaging quality.

Description

technical field [0001] The invention relates to the field of imaging, in particular to an ultrasonic image reconstruction method and system. Background technique [0002] Ultrasound imaging is a convenient, real-time, non-destructive imaging method. This method uses the acoustic impedance difference information of different parts inside the detected object carried in the ultrasonic echo signal to perform imaging. The traditional ultrasonic imaging process is divided into two steps. The first step is to obtain ultrasonic radio frequency (Radio Frequency, RF) signals from the ultrasonic transducer, and the second step is to use the RF signals to generate ultrasonic images, that is, ultrasonic image reconstruction. Ultrasound radio frequency signal is the original signal in the process of ultrasound imaging, which is easily disturbed and affects the imaging quality. Moreover, the ultrasonic image reconstruction process involves multiple steps, and each step needs to set many ...

AI Technical Summary

Problems solved by technology

Ultrasound radio frequency signal is the original signal in the process of ultrasound imaging, which is easily disturbed and affects the imaging quality

Moreover, the ultrasonic image reconstruction process involves multiple steps, and each step needs to set many parameters. Most of the current methods are to set the parameters of each step based on experience, and the effects of parameter adjustments in each step affect each other. An efficient way to overall plan these parameters, resulting in poor final image quality

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