Free-form deformation image registration using edge information measure
Xiuxiu Liao · Journal of Zhejiang University(Engineering Science) · 2008
A novel algorithm was presented aiming at the problem of deformation image registration.A B-spline based free-form deformation(FFD) model with multi-resolution grid was established to resolve the problem of local deformation image registration.An improved method for image similarity measure was proposed to improve the accuracy of local deformation image registration.The method introduced edge registration measure into the mean of squared differences(MSD) criterion and emphasized the contribution of edge information for registration.An optional interactive registration was suggested to further decrease the error for local regions with serious distortion after image registration to resolve the problem of local registration.Experimental results show that the algorithm has a satisfactory registration precision and the recovered transformation field is smooth,continuous and one-to-one mapping.