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A kind of ultrasonic imaging system, method, equipment and medium

An ultrasonic imaging system and beamforming technology, which are applied in ultrasonic/sonic/infrasonic diagnosis, sonic diagnosis, infrasonic diagnosis, etc., can solve problems such as error correction results, and achieve the effect of solving errors and improving accuracy

Active Publication Date: 2022-04-15
QINGDAO HISENSE MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide an ultrasonic imaging system, method, device and medium, which are used to solve the problem in the prior art that the receiving line causes errors to the correction results when the receiving line is untrustworthy, and improve the frame rate and accuracy of parallel beamforming. sex

Method used

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  • A kind of ultrasonic imaging system, method, equipment and medium
  • A kind of ultrasonic imaging system, method, equipment and medium
  • A kind of ultrasonic imaging system, method, equipment and medium

Examples

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Embodiment 1

[0056] figure 1 A schematic structural diagram of an ultrasonic imaging system provided by an embodiment of the present invention, the system includes: a probe 10, a transmitting beam unit 11, a multi-line receiving beam unit 12, and an image display unit 13, and also includes: a multi-line beam synthesizing unit 14 ;

[0057] The multi-line beam combining unit 14 is connected to the image display unit 13, and is used for determining, for each first receiving line, that the first receiving point corresponding to the first receiving line is at the same axial distance from the first receiving point. A first set number of second receiving points adjacent to the receiving points, the receiving points are divided into a plurality of groups, wherein each group contains a second set number of the receiving points, and the receiving points contained in each group The receiving points are completely different; the coherence coefficient weight value corresponding to each group is deter...

Embodiment 2

[0088] In order to improve the accuracy of parallel beam synthesis, on the basis of the above embodiments, in this embodiment of the present invention, the multi-line beam synthesis unit is further configured to, before determining the second receiving point, perform a phase difference and and / or amplitude difference, the phase and / or amplitude of the signal obtained at the receiving focal point corresponding to the transmitting focal point is corrected.

[0089] When performing the correction, only the phase may be corrected, or only the amplitude may be corrected, preferably, the phase and the amplitude are corrected at the same time.

[0090] figure 2 This is a schematic diagram of a 2-fold parallel beam synthesis provided by an embodiment of the present invention. In parallel beamforming, because the transmitting line and the receiving line are not geometrically coincident, the received receiving line and the transmitting line often have phase difference and amplitude di...

Embodiment 3

[0110] In order to determine whether the first receiving line is reliable, on the basis of the foregoing embodiments, in this embodiment of the present invention, the multi-line beam combining unit is specifically configured to

[0111]

[0112] Determine the weight value of the coherence coefficient corresponding to each group, where a is one-half of the parallel beamforming multiple, Corresponding confidence for each group, for the receiving line the coherence coefficient.

[0113] Here, in order to facilitate the description of this formula, a specific example is used for description.

[0114] Suppose that for the first receiving point (x i , z) are corrected to determine that on the same axial distance, the four second receiving points near the first receiving point are (x i-2 , z), (x i-1 , z), (x i+1 , z), (x i+2 , z), plus the first receiving point (x i , z) a total of 5 points.

[0115] Further, let

[0116] j 1 =i-2,i-1,...i+2

[0117] j 2 =i-2,i-1,...

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Abstract

The invention discloses an ultrasonic imaging system, method, equipment and medium. According to the first receiving point corresponding to each first receiving line on the same axis, the first set number of second receiving points adjacent to the first receiving point Receiving points, dividing the receiving points into a plurality of groups, wherein each group contains a second set number of receiving points, and the receiving points contained in each group are completely different; determining the coherence coefficient corresponding to each group Weight value, according to the sum of the coherence coefficient weight value corresponding to each group and the product of the coherent energy sum of the receiving point and the first receiving point contained in the group, the amplitude of the first receiving line Carry out corrections; merge each corrected first receiving line to generate corresponding image data, and send it to the image display unit to generate corresponding images, which improves the frame rate and accuracy of parallel beamforming and solves the problem of prior art In the case of unreliable receiving line data, it will cause errors to the correction results.

Description

technical field [0001] The invention relates to the field of digital image processing, in particular to an ultrasonic imaging system, method, device and medium. Background technique [0002] In ultrasound systems, parallel beamforming is often required in order to provide frame rate, that is, temporal resolution. That is, one line is transmitted and multiple lines are received for beamforming. However, because the transmitting and receiving lines cannot be geometrically coincident, some problems often appear in the image. The specific performance is that there will be more obvious grids in the image. This is caused by the fact that the receiving line and the transmitting line do not overlap, resulting in energy divergence, and the collected data contains more information about other adjacent lines. Therefore, it is necessary to modify the receive line, which is the core part of parallel beamforming. [0003] In order to realize parallel beamforming in the prior art, many...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00G06F30/20
CPCA61B8/5207A61B8/5269
Inventor 马克涛王琦宋昊
Owner QINGDAO HISENSE MEDICAL EQUIP
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