鞋楦特征驱动的鞋底模型个性化定制变形  

Personalized Customization Deformation of Sole Model Driven by Shoe Last Feature

作　　者：章洋 黄常标[1,2] 左远征 Zhang Yang;Huang Changbiao;Zuo Yuanzheng(Fujian Key Laboratory of Special Energy Manufacturing,Huaqiao University,Xiamen,Fujian 361021,China;Xiamen Key Laboratory of Digital Vision Measurement,Huaqiao University,Xiamen,Fujian 361021,China)

机构地区：[1]华侨大学福建省特种能场制造重点实验室,福建厦门361021 [2]华侨大学厦门市数字化视觉测量重点实验室,福建厦门361021

出　　处：《机电工程技术》2023年第2期201-206,共6页Mechanical & Electrical Engineering Technology

基　　金：福建省引导性项目(编号:2018H0020)。

摘　　要：鞋底模型变形控制是鞋类个性化定制数字化设计的关键技术之一。针对传统变形方法难以有效地实现鞋底模型个性化定制变形的问题,提出一种鞋楦模型数据驱动的分步变形策略,并基于径向基函数插值实现鞋底模型个性化定制变形的方法。在鞋楦模型与鞋底模型的特征提取和位姿匹配完成的基础上,将级放处理后的鞋底模型变形分为水平维度、竖直维度、内部区域和外部适应4个阶段变形,分别以鞋楦模型的相关特征作为驱动,利用径向基函数插值实现鞋底网格模型变形设计。算法实例表明本方法能够降低径向基函数插值稳定性依靠形状系数所带来的影响,有效实现鞋底个性化定制变形,且变形效果稳定良好。通过对比变形前后的随机采样点的间隙余量可以发现,鞋底模型内部区域较好地适应鞋楦模型曲面特征,达到个性化定制目的。The deformation control of sole model is one of the key technologies of the digital design for the personalized customization of footwears.It is difficult to effectively realize the deformation of sole model for personalized customization by means of the traditional deformation methods.A step-by-step deformation strategy driven by the data of shoe last model was proposed.Based on radial basis function interpolation,the method of personalized customization deformation of shoe sole model was realized.Based on the feature extraction and registration of shoe last model and sole model,the deformation of the graded sole model was made up of the deformation of horizontal dimension,the deformation of vertical dimension,the deformation of internal area and the deformation of external area.The deformation was driven by the feature data of shoe last model,and the deformation of the sole model was realized by the radial basis function interpolation.The examples of the algorithm illustrate that the proposed method can reduce the influence resulted from that the stability of radial basis function interpolation depends on the shape coefficient,and can realize the personalized deformation of the sole model effectively and stably.By comparing the gap values of random sampling points before and after deformation,it can be found that the internal area of the sole model can better adapt to the surface characteristics of the last model,so as to achieve the purpose of personalized customization.

关 键 词：个性化定制 径向基函数插值 鞋底网格模型变形 变形策略 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]