发明名称 |
METHOD OF CALIBRATING ULTRASOUND VELOCITY |
摘要 |
A method of calibrating ultrasound velocity is provided, including receiving an ultrasound non-delayed data set; performing a beam-forming process on the ultrasound non-delayed data set with a plurality of velocities to generate a plurality of aperture images; performing an MAE (Mean Absolute Error) process to obtain a velocity and two sub-aperture images corresponding to an MAE value located within an MAE range; finding a first sub-aperture and a second sub-aperture corresponding to the two sub-aperture images, generating a first aperture image and a second aperture image with corresponding velocity; performing the MAE process on the first aperture image and the second aperture image to generate an image error corresponding figure having an error curve; finding a trend curve according to the error curve; and finding a lowest point of MAE value on the trend curve and finding a velocity correspondingly to obtain the calibrated ultrasound velocity. |
申请公布号 |
US2015101390(A1) |
申请公布日期 |
2015.04.16 |
申请号 |
US201414164566 |
申请日期 |
2014.01.27 |
申请人 |
NATIONAL TAIWAN UNIVERSITY |
发明人 |
LI PAI-CHI;WEI YU-MING |
分类号 |
G01N29/30;G01N29/24 |
主分类号 |
G01N29/30 |
代理机构 |
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代理人 |
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主权项 |
1. A method of calibrating ultrasound velocity to obtain a calibrated ultrasound velocity for imaging, the method comprising following steps:
(a) receiving an ultrasound non-delayed data set; (b) performing a beam-forming process on the ultrasound non-delayed data set with a plurality of velocities from a plurality of sub-apertures of a probe to generate a plurality of aperture images; (c) performing an MAE (Mean Absolute Error) process on the aperture images to obtain MAE values, obtaining a velocity and two sub-aperture images corresponding to an MAE value located within an MAE range; (d) finding a first sub-aperture and a second sub-aperture corresponding to the two sub-aperture images, performing the beam-forming process on the ultrasound non-delayed data set with the velocity to generate a first aperture image corresponding to the first sub-aperture and a second aperture image corresponding to the second sub-aperture; (e) performing the MAE process on the first aperture image and the second aperture image to generate an image error corresponding figure having an error curve; (f) finding a trend curve according to the error curve; and (g) finding a lowest point on the trend curve and finding a velocity corresponding to the lowest point to obtain the calibrated ultrasound velocity, wherein the lowest point on the trend curve shows the lowest MAE value. |
地址 |
TAIPEI TW |