Non-rigid Registration Algorithm Based on B-spline Free Medical Images of the Deformation Model
Mengqiang Xiao · Computer Knowledge and Technology · 2012
In the clinical application of radiation therapy,the patient’s deformation of organ organization often make planned target section not agree with actual radiation therapy.Non-rigid registration technology as the effective solution to the problem,has become the hot and difficult point of medical image processing field.This paper aim at location of MR image lesions area in breast cancer treatment,use free form deformation model based on the B-spline to implement image non-rigid registration.This method utilizes limited memory L-BFGS to optimize the cost function,which reduces computational complexity and memory capacitance,and shorten the optimization time.The experimental results show that this method is not only of high efficiency,but also of good effect in registration.