Abstract:The traditional slice interpolation algorithm is not sensitive to unusual data points

while the deformation vector field based underutilized shortcomings. In order to solve the problem in the medical establishment and analysis of 3D models

we proposed a new slice interpolation method .First introduced in image registration methods to get deformation field between adjacent sequences. Firstly

taking into account the registration in different directions will get different deformation field

we will fuse the two fields to get the information richer deformation field. Secondly

we will get the displacement vector set registration between images by deformation field

and use cubic spline interpolation to get the gray value set gray value at displacement vector ends. Thirdly

using the linear relationship between the displacement vectors and interpolation layer to get the gray in intersection. Finally

using the thin plate spline surface fitting to give the gray value of the image coordinate system. Experimental results show that the algorithm proposed by this paper compared with other algorithms

image quality is better.