A mathematical model is proposed for nonrigid image registration. The solution of a set of nonlinear partial differential equations gives the spatial transformation for registering two images. This model can accommodate both small and large deformations, with sharper edges and clear texture achieved at less computational cost. The performance of this model has been tested on a variety of images including 2D and 3D, mono-modal and multi-modal, synthetic and clinical data.
Sq2Cir.avi
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| template image | target image |
| our model |  |  |  |
| fluid model |  |  |  |
| deformed template | difference image before registration | edge map |
| slice 36 | 
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| slice 39 | ||||
| slice 54 | ||||
| slice 60 | ||||
| template | coarse deformed template | fine deformed template | target | |