Medical ultrasound image speckle removing method through quantum inspiration

Abstract

The invention discloses a medical ultrasound image speckle removing method through quantum inspiration. The method comprises the steps that a medical ultrasound image containing speckle noise is input; logarithm transformation is carried out to convert the multiplicative noise image into the additive noise image; complex wavelet transformation is carried out to convert a grey value of the image into a wavelet coefficient; noise variance, and variance and smoothing parameters of a probability density function of an ideal image signal are estimated to obtain a noise statistic model and a statistic model of the ideal image signal; an adaptive adjustment threshold value is calculated according to the theory of quantum inspiration, and soft threshold processing is carried out on the wavelet coefficient to obtain a wavelet coefficient estimation value of the ideal image signal; the wavelet coefficient estimation value of the ideal image signal is used for wavelet reconstruction to obtain the image; exponential transformation is carried out on the image to compensate the logarithm transformation in the first step, and the image with speckles removed is obtained. The method can keep organization details in the image well on the basis of effectively removing the speckle noise of the medical ultrasound image, and play a good role in assisting in medical treatment.

Description

technical field [0001] The invention belongs to the field of computer image processing, and in particular relates to a quantum-inspired medical ultrasonic image speckle removal method. Background technique [0002] Ultrasound imaging technology is an important technical means widely used in the fields of medical diagnosis and treatment. Compared with other imaging technologies, it has the advantages of low cost, strong real-time performance, and non-destructive testing. It has been widely used. However, the scattering of ultrasound signals in the body will pollute medical ultrasound images with speckle noise, and the degradation of ultrasound image quality will affect clinical diagnosis. In order to reduce the speckle noise of medical ultrasound images while maintaining the tissue details and shape characteristics reflected by them, a good method for removing speckle in medical ultrasound images is essential. In recent years, the research topic of medical ultrasound image s...

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Problems solved by technology

[0007] Aiming at the deficiencies of the existing common medical ultrasonic image speckle removal methods, the present invention provides a quantum-inspired medical ultrasonic image speckle removal method, the purpose of which is to use the framework of quantum theory and quantum signal processing to overcome the existing medical ultrasonic image speckle removal methods Insufficient in speckle removal ability, image detail retention ability, image parameters cannot be determined adaptively, etc., improve the quality of medical ultrasound images, provide better image visual effects and image quality objective evaluation indicators, and facilitate the next stage of medical diagnosis and treatment

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