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Real-time calculating method and device of apodization coefficients in beam forming

A technology of beamforming and real-time computing, applied in the directions of ultrasonic/sonic/infrasonic image/data processing, acoustic diagnosis, infrasonic diagnosis, etc., can solve the problems of multi-storage resources and occupancy, and achieve the effect of saving storage resources

Active Publication Date: 2018-02-09
QINGDAO HISENSE MEDICAL EQUIP
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Problems solved by technology

[0005] However, the inventors have found that for any array element, when the coordinates of the center line of the receiving hole or the diameter of the receiving hole are different, the apodization coefficients of the array element are different. In this way, in the ultrasonic imaging system, if there are a different array elements, b centerlines of receiving holes with different coordinates, and c receiving holes with different diameters, it is necessary to store a*b*c apodization coefficients in the memory in advance, which will take up more storage resources

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  • Real-time calculating method and device of apodization coefficients in beam forming
  • Real-time calculating method and device of apodization coefficients in beam forming
  • Real-time calculating method and device of apodization coefficients in beam forming

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[0069] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the embodiments of the invention as recited in the appended claims.

[0070] figure 1 is a flow chart of a real-time calculation method for an apodization coefficient in beamforming according to an exemplary embodiment, as shown in figure 1 As shown, the method includes the following steps.

[0071] In step S101, the position information of the array element and the position information of the center line of the receiving...

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Abstract

The embodiment of the invention provides a real-time calculating method and device of apodization coefficients in beam forming. According to the method, only position information of each array element, the specific values of the number of apodization indexes contained in the preset corresponding relationship between the apodization indexes and the apodization coefficients to the diameters of receiving holes and the preset corresponding relationship between the apodization indexes and the apodization coefficients need to be stored in a storage device in advance; therefore, when the apodizationcoefficients when one certain array element is in the central line of one receiving hole in a certain position and when the certain array element is in one receiving hole with a certain diameter needto be obtained, the apodization coefficients of the corresponding array element can be calculated in real time according to the pieces of data which is stored. By means of the method, the apodizationcoefficients when each array element is in the central lines of the receiving holes in different positions and when each array element is in the receiving holes with different diameters do not need tobe stored in the storage device in advance respectively, so that storage resources are saved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of medical ultrasound, in particular to a method and device for real-time calculation of an apodization coefficient in beamforming. Background technique [0002] Ultrasonic imaging systems are often used in medical diagnosis. In the ultrasonic imaging system, the ultrasonic signals are amplified and sampled by analog and then enter the beamforming link. In the beamforming link, the ultrasonic reflection signals of each channel need to be weighted and superimposed in phase. [0003] However, in the sound field formed by the transmission and reception of ultrasonic signals, in addition to the main lobe that determines the image resolution, there are usually side lobes that can generate artifacts, which will reduce the signal-to-noise ratio of the image and lead to image resolution. The rate is lower. [0004] Therefore, in order to improve the resolution of the image, it is usually neces...

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Application Information

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IPC IPC(8): A61B8/00
CPCA61B8/52A61B8/5215A61B8/5269
Inventor 韩晓涛于琦王琦王桂成
Owner QINGDAO HISENSE MEDICAL EQUIP
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