Sinusoidal function-based linear scanning and emission control method for ultrasound biomicroscopes

Abstract

The invention relates to a sinusoidal function-based linear scanning and emission control method for ultrasound biomicroscopes. The method equidistantly sets 1024 circumferential velocity points along the circumference of a uniform circumferential motion process corresponding to the linear scanning motion process of an ultrasound biomicroscope, the velocity value v of each velocity point is the product of a circumferential velocity value V and the sine value of an arc with the velocity point, the uniform circumferential motion process is divided into 1023 sections, the mean value of the velocity values v of the two neighboring velocity points of each section is taken as the average velocity value vavg (i) of each section, and i is equal to 1, 2...1023; the radian range of the circumference is between Pi / 6 and Pi5 / 6, the radius of circumferential motion is R, the effective scanning path distance is S as R, the emission distance S of each section is R / 1023 equal to 0.001693R, the emission time of each section is T equal to S / vavg (i), and emission is controlled according to the emission time of each section. The method can eliminate geometric distortion, increase the utilization rate of the scanning path and increase image quality.

Description

technical field [0001] The invention relates to a linear scanning emission technology of an ultrasonic biological microscope, in particular to a scanning control method of an ultrasonic biological microscope for ophthalmic disease diagnosis with an ultrasonic frequency above 35Mhz. Background technique [0002] Ultrasound Biomicroscope (UBM) is a new type of ophthalmic B-ultrasound imaging detection equipment developed in the early 1990s. UBM uses programmable logic devices to control electronic circuits to excite high-frequency ultrasonic transducers to emit high-frequency ultrasound as a signal source, receive ultrasonic echo signals and perform electronic signal processing to obtain digital images related to inspection tissues, combined with computer image processing technology to provide people with Two-dimensional images of the anterior segment similar to low-power optical microscope effects and different cross-sections. UBM has the characteristics of high resolution, ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of geometric distortion, low scanning path utilization rate and poor image quality in the existing equitime-distance linear scanning emission method of ultrasonic biological microscope, the present invention provides a method for eliminating geometric distortion and improving scanning path utilization rate, Sinusoidal function-based linear scanning emission control method for ultrasonic biomicroscope to improve image quality

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