Dynamic self-adjusting sound beam forming device

Abstract

The present invention relates to a dynamic self-adjusting sound beam forming device, which pertains to the field of medical ultrasound imaging. The present invention adopts a field-programmable gate array (FPGA) to realize the sound beam forming logic and makes use of the online reconfigurable feature of the FPGA to deploy the parameter identification logic to FPGA firstly, then the FPGA can carry out the estimation and identification of the characteristics of the ultrasonic echo of a measured target and save the identification results on an upper computer, the upper computer can adjust the focused delay parameter of the beam forming device according to the identification results and then deploy the beam forming logic to the FPGA to carry out the ultrasound scanning work. The present invention can adjust the focused delay parameter of the beam forming according to the characteristics of the current measured target by increasing the identification process of the characteristics of the measured target, so the present invention can obtain the best focus effects of the ultrasound for the different groups of people and the different inspection sites, thus effectively improving the transverse resolution and the contrast resolution of the ultrasonic images and having broad application prospect in the medical ultrasound system.

Description

technical field [0001] The invention relates to the technical field of medical ultrasound imaging, in particular to a dynamic self-adjusting sound beam forming device. Background technique [0002] So far, the ultrasound imaging system has had a development history of more than 30 years. During this period, the structure and implementation methods of ultrasound imaging systems have undergone great changes. The sound beam forming technology is one of the most critical technologies in the ultrasound imaging system, and the progress of this technology divides the development era of the ultrasound imaging system. [0003] From the end of the 1960s to the end of the 1980s, the ultrasound imaging system mainly used the analog sound beam forming technology, and the focus used the analog LC delay line. The taps of the analog delay line are limited, so that the receiving sound beam can only form a few focal points, and the distance between the focal points is large. In addition, fa...

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Problems solved by technology

Therefore, the traditional digital sound beam forming technology cannot adapt to the complex variability of the measured object, and the quality of ultrasonic imaging is greatly limited.

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