An Ultrasonic Plane Wave Imaging Method Based on Inverse Perspective Plane Transformation
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An imaging method, plane wave technology, applied in ultrasonic/sonic wave/infrasonic wave diagnosis, acoustic wave diagnosis, infrasonic wave diagnosis, etc., can solve the problem of low plane wave imaging quality, achieve the effect of improving imaging quality, increasing resolution, and fast processing speed
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
An imaging method, plane wave technology, applied in ultrasonic/sonic wave/infrasonic wave diagnosis, acoustic wave diagnosis, infrasonic wave diagnosis, etc., can solve the problem of low plane wave imaging quality, achieve the effect of improving imaging quality, increasing resolution, and fast processing speed
CN106780329BActive 📅 Publication Date: 2019-08-30HUAZHONG UNIV OF SCI & TECH
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[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0042] In the present invention, the ultrasonic plane wave imaging method based on the anti-perspective principle plane transformation is to properly process the original data collected by the ultrasonic system, and finally reconstruct the ultrasonic image. The steps include collecting data, data preprocessing, time-delayed superposition, weighted average, Envelope detection, log compression, gr...
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Abstract
The invention discloses an anti-perspective plane transformation-based ultrasonic plane wave imaging method. The method comprises the following steps of (1) collecting data; (2) preprocessing the data: converting imaging points on an original imaging plane into imaging points on a new plane by utilizing plane conversion, calculating delay time according to the imaging points on the new plane to obtain corrected delay time, then receiving and focusing the imaging points on the original imaging plane by utilizing a synthetic aperture focusing technology according to the corrected delay time, and obtaining a value of each imaging point on the original imaging plane; and (3) post-processing the data: performing envelope detection, logarithmic compression and grayscale mapping in sequence, and finally obtaining an ultrasonic plane wave imaging image. According to the method, a key delay time calculation mode is improved and matched with the synthetic aperture focusing technology, so that compared with the prior art, the problem of low plane wave imaging quality can be effectively solved and the ultrasonic plane wave imaging resolution is effectively increased.
Description
technical field [0001] The invention belongs to the technical field of high-resolution ultrasonic imaging, and more particularly relates to an ultrasonic plane wave imaging method based on inverse perspective plane transformation. Background technique [0002] Ultrasonic detection has the advantages of good directivity, low price, harmless to the human body, and easy to carry equipment. Therefore, the detection technology using ultrasound as the emission source instead of ray to irradiate the object has gradually become a new pursuit pursued by researchers in the field of ultrasound applications. one of the goals. [0003] Plane wave imaging only needs one shot to complete the imaging of the entire region of interest, so it is an ideal way for fast ultrasound imaging. However, compared with traditional ultrasound imaging with multiple shots and focusing, the plane wave lacks a focusing process during its launch. The image quality obtained only by accepting focusing is low i...
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