基于一名速度滑冰男性运动员(年龄:25岁,身高:167cm,体重:64kg,无足部或下肢损伤)建立足-速滑鞋有限元模型。利用计算机断层扫描仪(荷兰,Philips 16 排螺旋 CT 机)获取受试者右足无负重中立位时的影像学数据。扫描范围为右足足底向上至踝关节,扫描层厚为0.67mm,共采集403张断层图像,扫描数据以 DICOM 格式存储。在MIMICS软件中导入保存为DICOM格式的足部数据,设置 CT 灰度阈值的上限和下限,对导入的断层影像进行滤波,增强足部骨骼像素的亮度并提取每个断层图片中骨骼的二维图像,然后手动删除和填补噪音像素,建立骨-骨关节腔隙,经过 3D 计算建立骨骼的三维实体模型。
Based on a male speed skating athlete (age: 25 years old, height: 167cm, weight: 64kg, no foot or lower limb injury), a foot-speed skating shoe finite element model was established. The imaging data of the subject's right foot in neutral position without weight bearing was obtained by using a computerized tomography scanner (Philips 16-row spiral CT machine in the Netherlands). The scanning range is from the sole of the right foot to the ankle joint. The scanning layer thickness is 0.67mm. A total of 403 sectional images are collected, and the scanning data is stored in DICOM format. Import foot data saved in DICOM format in MIMICS software, set the upper and lower limits of CT gray threshold, filter the imported sectional image, enhance the brightness of foot bone pixels and extract the two-dimensional image of bones in each sectional image, then manually delete and fill the noise pixels, establish the bone-bone joint cavity, and establish the three-dimensional solid model of bones through 3D calculation.