Oline Vinter OLESEN,Rasmus LARSEN,Rasmus R. PAULSEN,Liselotte HØJGAARD
申请号：
US16712211
公开号：
US20200113486A1
申请日:
2019.12.12
申请国别(地区):
US
年份:
2020
代理人:
摘要：
Disclosed is apparatus and method for motion tracking of a subject in medical brain imaging. The method comprises providing a light projector and a first camera； projecting a first pattern sequence (S1) onto a surface region of the subject with the light projector, wherein the subject is positioned in a scanner borehole of a medical scanner, the first pattern sequence comprising a first primary pattern (P1,1) and/or a first secondary pattern (P1,2)； detecting the projected first pattern sequence (S1′；) with the first camera； determining a second pattern sequence (S2) comprising a second primary pattern (P2,1) based on the detected first pattern sequence (S1′；)； projecting the second pattern sequence (S2) onto a surface region of the subject with the light projector； detecting the projected second pattern sequence (S2′；) with the first camera； and determining motion tracking parameters based on the detected second pattern sequence (S2′；).
