摘要

采用光切扫描法提出了一种基于规则化点云数据的鞋楦定制算法。将规则化点云拟合为NURBS曲线后,在划分的各特征段内分别根据脚型对标准鞋楦进行整体缩放实现局部修改;然后,用基于能量优化原则同时修改控制点和权因子的方法,对标准鞋楦进行自适应修改来实现鞋楦的数字化定制。利用该算法对特定脚型进行自动化鞋楦定制,由脚型扫描至生成定制鞋楦模型的时间在120 s之内。根据此算法完成的定制鞋楦能够满足鞋楦美观性和舒适性的需求,并且缩短了常规手工定制鞋楦的时间。

Abstract

In order to realize the automatic customizing for shoe lasts,a segment-based adaptive algorithm is proposed.After fitting the regular data clouds to NURBS curves,the standard shoe lasts are contracted or enlarged in each feature segment according to foot shapes to perform local modification.Then,an energy optimization-based method to modify the control points and the weight factors is proposed to fit the standard shoe lasts adaptively and to realize digital customizing the shoe lasts.The automatic custormizing shoe lasts are performed by the presented method,and the procedure from scanning the foot shape to establish a last 3D model takes time less than 120 s.The results show that the algorithm can meet the requirements of comfort and aesthetics,and can shorten the customizing time.

补充资料

中图分类号：TP301.6;TS943.2

所属栏目：信息科学

基金项目：科技部中德科技合作重点项目(No.2003DFB00028)。

收稿日期：2008-06-04

修改稿日期：2008-08-13

网络出版日期：0001-01-01

作者单位    点击查看

联系人作者：史辉(shih@mails.tsinghua.edu.cn)

备注：史辉|工程师|主要从事非接触式三维轮廓测量等方向的研究|(1984-),女,江西南昌人,博士,2005年毕业于清华大学获学士学位,2009年于清华大学获博士学位。

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引用该论文

SHI Hui,WANG Bo-xiong,JIA Qian-qian,LUO Xiu-zhi. Segment-based adaptive modification for customized shoe last[J]. Optics and Precision Engineering, 2009, 17(4): 880-885

史辉,王伯雄,贾倩倩,罗秀芝. 定制鞋楦的分段自适应修改[J]. 光学 精密工程, 2009, 17(4): 880-885

被引情况

【1】任怀艺,王伯雄,刘辉,罗秀芝. 鞋楦定制中非均匀有理B样条特征曲线的自适应变形. 光学 精密工程, 2013, 21(1): 181-188

【2】任怀艺,王伯雄,罗秀芝. 基于模糊层次分析的足楦匹配算法在鞋楦定制中的应用. 光学 精密工程, 2014, 22(6): 1677-1685