A novel simulation method is proposed to obtain the geometric parameters of target prebending plate before the operation for complete fracture.The main processing scheme consists of the following steps:Firstly the serial tomograms of fracture part from CT scan are got and denoised by Curvelet transform and 3-D reconstructing;Secondly a method based on vertex normal feature is utilized to obtain fractured bone section;Thirdly a coarse registration based on minimum bounding box and a precise registration base...