| 发明名称 |
AUTOMATIC MULTIMODAL REAL-TIME TRACKING OF A MOVING MARKER FOR IMAGE PLANE ALIGNMENT INSIDE A MRI SCANNER |
| 摘要 |
A system for an automatic multimodal real-time tracking of moving instruments for image plane alignment inside an MRI scanner includes:
an MRI scanner,an MRI multi-plane pulse sequence generating unit allowing to interactively modify the position and orientation of one or several image planes in real-time,one or several external optical sensors with high frame rate, preferably a RGB-D sensor or other similar camera system like a stereovision systems,a multimodal marker including at least one MR visible feature and one visual feature able to be tracked by both the MRI scanner and the at least one external optical sensor,a computer for processing in real-time images from both MRI and optical sensor to fuse the detected marker position and orientation or pose from both modalities, and predict the next image plane position and orientation based on the estimated motion of the moving marker. |
| 申请公布号 |
US2017014203(A1) |
申请公布日期 |
2017.01.19 |
| 申请号 |
US201515120653 |
申请日期 |
2015.02.24 |
| 申请人 |
UNIVERSITE DE STRASBOURG (ETABLISSEMENT PUBLIC NATIONAL A CARACTERE SCIENTIFIQU, CULTUREL ET PROF ;CENTERE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (ETA BLISSEMENT PUBLIC NATIONAL A CARACTERE SCIENTIFI ;INSTITUT HOSPITALO-UNIVERSITAIRE DE CHIRURGIE MIN- INVASIVE GUIDEE PAR L'IMAGE (FONDATION DE COOPERA |
发明人 |
DE MATHELIN Michel;NEUMANN Markus;CUVILLON Loic;BRETON Elodie |
| 分类号 |
A61B90/00;G01R33/28;A61B90/13;A61B5/06;A61B5/00;A61B5/11 |
主分类号 |
A61B90/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A system (1) for tracking a moving marker, stand-alone or fixed on an instrument, a holding system or a body of a subject, comprising:
an MRI scanner (2), an MRI multi-plane pulse sequence generating means allowing to interactively modify the position and orientation of one or several image planes in real-time, one or several external optical sensors (3) with high frame rate, preferably a RGB-D sensor or an other similar camera system like a stereovision systems, a multimodal marker (4) comprising at least one MR visible feature and one visual feature able to be tracked by both the MRI scanner (2) and the at least one external optical sensor (3), a computer (5) able to process in real-time the images from both MRI and optical sensor in order to fuse the detected marker position and orientation or pose from both modalities, and predict or estimate the next image plane position and orientation based on the estimated motion of the moving marker (4), in order to automatically track said marker (4) and automatically align the image planes with respect to the marker (4), or to a holding system or body location it is fixed on. |
| 地址 |
STRASBOURG FR |
