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ULTRASOUND PROBE LOCALIZATION WITH DRIFT CORRECTION
专利权人:
KONINKLIJKE PHILIPS N.V.
发明人:
Jochen Kruecker,Faik Can Meral
申请号:
US16645684
公开号:
US20200275915A1
申请日:
2018.08.28
申请国别(地区):
US
年份:
2020
代理人:
摘要:
An ultrasound (US) device (10) includes a US scanner (14) and a US probe (12) operatively connected to the US scanner. The US scanner and US probe are configured to acquire a succession of two-dimensional (2D) image frames of a portion of a patient. The device also includes a tracking sensor (28); and at least one electronic processor (20) programmed to: acquire a reference three-dimensional (3D) image using the US scanner and US probe; track the pose of each 2D image frame relative to the pose of the last 2D image frame in the succession of 2D image frames based on tracking data acquired by the tracking sensor; and correct for drift of the trucked poses of the succession of 2D image frames by drift correction operations including: aligning a current 2D image frame with the reference 3D image to optimize a similarity metric measuring similarity of the current 2D image frame to an intersected slice of the reference 3D image; and updating the pose of the current 2D image frame to a corrected pose determined from the alignment of the current 2D image frame with the reference 3D image.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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