The data term employs the nonquadratic penalization function to improve the models robustness.Our improved model is applied to register brain images,and more accurate and robust results are obtained.

• 采用非二次惩罚函数作为数据项；以增强模型的鲁棒性.；最后利用文中模型对大脑图像进行配准实验；得到了较为准确的结果