| 摘要 |
The invention relates to a method of obtaining a three-dimensional deformation of an organ which is deformable over time and extends in a three-dimensional space from at least two sets of data [DS(t1), DS(t2)] representing points of said organ and corresponding to distinct times [t1, t2] in the deformation of the organ. A correspondence [SEL(t1,t2)] between the points in the sets of data being determined [COR], said method uses a definition [DEF] of notional planes [Pi] on which there are defined explicit equations [EQi] of the deformation of the organ including unknown parameters [PARi(t1,t2)]. The parameters [PARi(t1,t2)] are calculated [CAL] for each equation [EQi] and the explicit equations [EQi] obtained are then utilized [EXT] in order to define the deformation in the three-dimensional space [DEF3D(t1,t2)] by means of weighting functions defined for the points in the space.
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