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A beam forming method, device and ultrasonic imaging equipment

A beamforming and ultrasonic probe technology, applied in the fields of devices, ultrasonic imaging equipment, and beamforming methods, can solve the problems of affecting focusing accuracy, inaccurate delay, and reducing beamforming effects, and achieve the effect of improving focusing accuracy.

Active Publication Date: 2018-06-22
BEIJING EAST WHALE IMAGE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, only some focal points have precise time delays while other focal points have inaccurate time delays. Theoretically, the coherence between echoes cannot be guaranteed, thus affecting the focusing accuracy and reducing the effect of beamforming, which will inevitably affect the image quality.

Method used

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  • A beam forming method, device and ultrasonic imaging equipment
  • A beam forming method, device and ultrasonic imaging equipment
  • A beam forming method, device and ultrasonic imaging equipment

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preparation example Construction

[0020] figure 1 For a flow chart of the steps of a beamforming method provided by an embodiment of the present invention, refer to figure 1 , an embodiment of the present invention provides a beamforming method, including the following steps:

[0021] Step 101, obtaining the point-by-point delay data of the ultrasound probe channel;

[0022] Step 102, compressing the point-by-point delay data according to a compression method to obtain compressed data;

[0023] Step 103, sending the compressed data to the hardware of the ultrasound imaging system, so that the hardware can decompress the compressed data according to the compression method to obtain the point-by-point delay data, and according to the point-by-point delay The data is beamformed.

[0024] It can be seen that through the above method, the hardware can obtain accurate point-by-point delay data by compressing the point-by-point delay data and sending it to the hardware, which is decompressed by the hardware. Comp...

specific Embodiment approach

[0066] Patent CN103454640 A discloses a kind of ultrasonic imaging system architecture based on radio frequency (RF) data upload, and the implementation scheme based on this architecture of this preferred embodiment is as follows figure 2 As shown, the software realizes most of the data calculation, including the calculation of point-by-point focus delay, and the hardware only completes the control function, which has the characteristics of "Software Defined Ultrasound". The specific implementation method is:

[0067] 1. An ultrasonic system based on a radio frequency data upload, including a general-purpose computer (PC), data transmission FPGA, transmitting and receiving FPGA, transmitting circuit, and receiving circuit;

[0068] 2. The software running on a general-purpose computer (PC) calculates the parameters related to scanning control;

[0069] 3. At the same time, the software calculates the point-by-point delay data of each channel according to the geometric relati...

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Abstract

The embodiment of the invention provides a wave beam synthetic method and device, and ultrasonic imaging equipment. The method comprises the steps: obtaining point-by-point time delay data of an ultrasonic probe channel; compressing the point-by-point time delay data in a mode of compression, and obtaining compressed data; enabling the compressed data to be transmitted to hardware of an ultrasonic imaging system, enabling the hardware to decompress the compressed data according to the compression mode, obtaining the point-by-point time delay data, and then carrying out wave beam synthesis according to the point-by-point time delay data. According to the embodiment of the invention, the method can improve the focusing precision of ultrasonic wave beam synthesis.

Description

technical field [0001] Embodiments of the present invention relate to the field of ultrasound imaging, and in particular, to a beam forming method, device, and ultrasound imaging equipment. Background technique [0002] Ultrasound beamforming is one of the core processing steps of ultrasound imaging, and its focusing accuracy is directly related to the image quality of ultrasound imaging. The focus accuracy depends on the accuracy of the point-by-point focus delay value obtained by the hardware. At present, the realization of the point-by-point focusing delay value of the hardware is mainly to give the precise delay of some focus points through software or table lookup, and send it to the hardware. The hardware estimates the delay corresponding to each sampling point through simple interpolation. value. In this way, only some focus points have accurate time delays while other focus points have inaccurate time delays. Theoretically, the coherence between echoes cannot be gu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/52G01S15/89
CPCG01S7/52G01S15/89
Inventor 贺兴柏李毅魏世宇
Owner BEIJING EAST WHALE IMAGE TECH