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Ultrasonic image contrast and transverse resolution optimization method

A lateral resolution, ultrasound image technology, applied in image analysis, image enhancement, image data processing and other directions, can solve problems such as image contrast and poor lateral resolution, achieve simple steps, optimize system imaging quality, and improve signal-to-noise ratio. Effect

Active Publication Date: 2019-11-22
BEIJING MECHANICAL EQUIP INST
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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide an ultrasound image contrast and lateral resolution optimization method to solve the problem of poor image contrast and lateral resolution obtained by existing ultrasonic image processing methods

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  • Ultrasonic image contrast and transverse resolution optimization method
  • Ultrasonic image contrast and transverse resolution optimization method
  • Ultrasonic image contrast and transverse resolution optimization method

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Embodiment 2

[0091] This embodiment provides an ultrasound image contrast and lateral resolution optimization system, including:

[0092] The original image acquisition component is used to acquire N pieces of original ultrasonic echo images;

[0093] The image smoothing processing component is used to smooth the N original ultrasonic echo images acquired by the original image acquiring component in units of pixels to obtain an echo data matrix, and transmit the echo data matrix to the data processing component;

[0094] The data processing component is used to receive and process the smoothed echo data matrix, and calculate the covariance matrix of the echo signal; it is also used to add white noise to the covariance matrix of the echo signal, and calculate the white noise added Eigenvalues ​​and eigenvectors of the covariance matrix;

[0095] The image generation component constrains the smoothed echo data matrix by using the maximum eigenvalue of the covariance matrix added with the wh...

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Abstract

The invention relates to an ultrasonic image contrast ratio and transverse resolution optimization method, belongs to the technical field of ultrasonic image processing, and solves the problem of poorimage contrast ratio and transverse resolution obtained by an existing ultrasonic image processing method. The optimization method comprises the following steps: acquiring N original ultrasonic echoimages by using an ultrasonic transducer; carrying out smoothing processing on the N original ultrasonic echo images by taking pixel points as units to obtain an echo data matrix; calculating a covariance matrix of the echo signal based on the smoothed echo data matrix; adding a white noise signal into the covariance matrix of the echo signal, and calculating a characteristic value and a characteristic vector of the covariance matrix added with the white noise signal; and constraining the smoothed echo data matrix by using the maximum eigenvalue of the covariance matrix added with the white noise signal to obtain a final ultrasonic echo image. The method is simple in step, easy to operate and capable of remarkably improving the contrast ratio and the transverse resolution ratio of the ultrasonic image.

Description

technical field [0001] The invention relates to the technical field of ultrasonic image processing, in particular to a method for optimizing the contrast and lateral resolution of an ultrasonic image. Background technique [0002] Ultrasound imaging has the characteristics of strong transmission ability and little harm to the human body, and has become one of the most important medical diagnostic techniques. Ultrasonic imaging is a method and technology that uses ultrasonic waves to irradiate a subject, and obtains internal information of the subject's tissue and structure by receiving and processing echoes that carry information about the internal tissue or structure of the subject. Ultrasound imaging has the advantages of low price, good real-time imaging, and no harm to patients. Human tissues such as muscle, fat, spleen, stomach, etc. have similar acoustic impedance, and the ultrasonic echo energy reflected by each tissue is similar. Therefore, high-contrast ultrasonic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T3/40G01N29/44
CPCG06T7/0012G06T3/4053G01N29/44G06T2207/10132G06T5/70
Inventor 李嘉科李石孙春香匡晓霖马俊
Owner BEIJING MECHANICAL EQUIP INST
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