公开(公告)号：US09642560B2

公开(公告)日：2017-05-09

申请号：US14766471

申请日：2013-04-03

Applicant: Brainlab AG

Inventor： Mario Schubert ,  Melanie Wegner ,  Sabine Kling

IPC: G06K9/00 ,  A61B5/107 ,  G06T7/00 ,  A61B5/11 ,  G01B11/14 ,  G06K9/52 ,  G06T3/60 ,  G06T7/60 ,  A61B5/00 ,  A61B34/20 ,  A61B90/00

CPC classification number: A61B5/1079 ,  A61B5/0077 ,  A61B5/1072 ,  A61B5/1075 ,  A61B5/1121 ,  A61B5/1127 ,  A61B5/4538 ,  A61B5/7278 ,  A61B34/20 ,  A61B2034/2048 ,  A61B2034/2055 ,  A61B2034/2068 ,  A61B2090/3937 ,  A61B2562/0219 ,  A61B2576/00 ,  G01B11/14 ,  G06F19/00 ,  G06K9/52 ,  G06T3/60 ,  G06T7/0014 ,  G06T7/30 ,  G06T7/60 ,  G06T7/73 ,  G06T7/74 ,  G06T2207/30004 ,  G06T2207/30204

Abstract: A data processing method for determining the relative orientation of an object coordinate system of an anatomical object in a global co-ordinate system, comprising the steps of: acquiring a reference direction dataset representing a first reference direction of a line between a first anatomical landmark of a reference object and a second anatomical landmark of the reference object, and a second reference direction of a line between a third anatomical landmark of the reference object and a fourth anatomical landmark of the reference object, wherein the first and second reference directions are given in a reference coordinate system and the reference object corresponds to the anatomical object; acquiring an object direction dataset representing a first object direction of a line between the first anatomical landmark of the anatomical object and the second anatomical landmark of the anatomical object, and a second object direction of a line between the third anatomical landmark of the anatomical object and the fourth anatomical landmark of the anatomical object, wherein the first and second object directions are given in the global co-ordinate system and the landmarks of the anatomical object correspond to the landmarks of the reference object; calculating the orientation of the reference co-ordinate system relative to the global co-ordinate system which results in the best match between each of the reference directions and the respectively corresponding object direction; and—using the orientation of the reference co-ordinate system in the global co-ordinate system as the relative orientation of the object co-ordinate system.

公开(公告)号：US20170079723A1

公开(公告)日：2017-03-23

申请号：US15126425

申请日：2014-05-14

Applicant: Brainlab AG

Inventor： Oliver Fleig ,  Timo Neubauer ,  Mario Schubert ,  Sabine Kling

IPC: A61B34/20

CPC classification number: A61B34/20 ,  A61B2034/2048 ,  A61B2034/2051 ,  A61B2034/2055 ,  A61B2034/2063 ,  A61B2090/502

Abstract: The present invention relates to a method for determining the spatial position of objects, in particular medical objects. First position data is acquired that describes a spatial position of an object in a first coordinate system. First transformation data is acquired that transforms the object's position from the first coordinate system to a second coordinate system. Based on the foregoing data, second position data is acquired that specifies the spatial position of the object in the second coordinate system. Second transformation data is acquired that transforms the object's position from the second coordinate system to an inertial coordinate system. Based on the second position data and the second transformation data, inertial position data is determined that specifies a position of the object in the inertial coordinate system.