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基于权重的子孔径拼接优化算法研究

Global Optimization Algorithm of Subaperture Stitching Weight Coefficients

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摘要

为了提高大口径光学元件面形拼接检测准确度,减少传统子孔径拼接算法带来的误差传递和积累,并在原有全局优化拼接算法的基础上引入权重系数,使全口径内各相邻子孔径之间的重叠区域达到最优匹配,使拼接误差最小化.利用该优化算法对平面进行了多孔径拼接仿真模拟,在此基础上对150mm口径的平面镜进行了实验,并提出基于图像边缘轮廓特征提取的子孔径定位新方法,分析了影响拼接误差的因素.仿真和实验结果均证明了基于权重的全局优化拼接算法的有效性和可行性.

Abstract

In order to obtain the whole lens′ precision surface information and reduce its errors transfer and accumulation, a new global optimization stitching algorithm based on weight coefficient is presented. The common region of the two neighborhood subaperture can reach the optimal match and the stitching error is minimized by using this algorithm. The multiapertures stitching simulation is carried out, and an actual experiment is carried to the flat lens of 150 mm. A new subaperture position method based on the image edge contour feature extraction is introduced and the error factors are analyzed for stitching. Both the simulation and the experiment results show that this global optimization stitching algorithm is good for reducing the transfer and accumulation error, which exist in the traditional method, and realizing the high precision subaperture stitching measurement.

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中图分类号:TH744

DOI:10.3788/gzxb20134208.0943

基金项目:国家自然科学基金(No.51075322)和陕西省教育厅项目(No.12JS048)资助

收稿日期:2013-02-20

修改稿日期:2013-04-22

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田爱玲:西安工业大学 陕西省薄膜与光学检测技术重点实验室, 西安 710032
吴世霞:西安工业大学 陕西省薄膜与光学检测技术重点实验室, 西安 710032
刘丙才:西安工业大学 陕西省薄膜与光学检测技术重点实验室, 西安 710032
张鹏飞:Optical Bioimaging Lab, National University of Singapore Singapore 117574

联系人作者:田爱玲(tian21964@sohu.com)

备注:田爱玲(1964-),女,教授,博士,主要研究方向为光学加工与检测、精密检测.

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引用该论文

TIAN Ailing,WU Shixia,LIU Bingcai,ZHANG Peifei. Global Optimization Algorithm of Subaperture Stitching Weight Coefficients[J]. ACTA PHOTONICA SINICA, 2013, 42(8): 943-949

田爱玲,吴世霞,刘丙才,张鹏飞. 基于权重的子孔径拼接优化算法研究[J]. 光子学报, 2013, 42(8): 943-949

被引情况

【1】李兵,刘晓,康晓清,高芬. 环形子孔径拼接检测的中心偏移误差补偿. 光子学报, 2016, 45(9): 912001--1

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