发明名称 |
Method and system of automatic determination of geometric elements characterizing a bone deformation from 3D image |
摘要 |
The invention relates to a method for automatically determining, on a bone comprising a head portion contiguous to a neck portion, parameters for characterizing a bump deformation on the head-neck junction of the bone from acquired 3D medical image, the method comprising the following steps: i) constructing a 3D surface model of the bone; ii) fitting a sphere on the spherical portion of the head of the bone; iii) determining a neck axis characterizing the neck portion of the bone; iv) determining from the fitted sphere and the neck axis, a clock face referential on the head of the bone rotating around the neck axis; v) determining a 3D curve on the 3D surface model characterizing the head- neck junction of the bone; vi) determining, from the 3D curve, the summit of the bump deformation of the head-neck junction of the bone; vii) determining, from said summit of the bump deformation, first and a second parameters (α3D, iMax) characterizing the maximum bump deformation of the head-neck junction of the bone. |
申请公布号 |
AU2011266700(B2) |
申请公布日期 |
2015.05.21 |
申请号 |
AU20110266700 |
申请日期 |
2011.06.16 |
申请人 |
A² SURGICAL |
发明人 |
CHABANAS, LAURENCE;LAVALLEE, STEPHANE;TONETTI, JEROME;BYRD, THOMAS;KELLY, BRYAN TALMADGE;LARSON, CHRISTOPHER |
分类号 |
G06T7/00;A61B5/103;A61B5/107;A61B6/03;G06T7/60;G06T15/10;G06T17/00 |
主分类号 |
G06T7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|