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基于改进曲面拟合法的数字散斑相关方法研究
Alternative TitleResearch on Digital Speckle Correlation Method Based on Improved Curved Surface Fitting Method
李凯强; 朱丹; 佟新鑫
Department光电信息技术研究室
Source Publication激光与光电子学进展
ISSN1006-4125
2018
Volume55Issue:5Pages:1-7
Indexed ByCSCD
CSCD IDCSCD:6246398
Contribution Rank1
Keyword图像处理 数字散斑相关方法 曲面拟合 亚像素 光电测量
Abstract

采用二元二次多项式曲面拟合方法进行精确亚像素定位的数字散斑相关方法具有计算简单、求解效率高等优点。传统方法通常选取整像素周围九个像素点进行曲面拟合。通过对曲面拟合可能的改进方案进行分析,本文采用整像素周围最近的六个像素点和相关系数直接求解二元二次多项式。采用计算机模拟产生散斑图样,分别模拟了刚体平移、单向拉伸实验。实验证明,改进方案具有计算效率高,计算误差小的优点。

Other Abstract

The digital speckle correlation method based on binary quadratic polynomial curved surface fitting method for precise sub-pixel localization has the advantages of simple calculation and high efficiency. The traditional method usually selects nine pixels around the integer pixel for surface fitting. By analyzing the possible improvement schemes of surface fitting, this paper uses the nearest six pixels around the integer pixel and the correlation coefficient to directly solve the bivariate quadratic polynomial. Speckle patterns were generated by computer simulation, and the rigid body translation and uniaxial tension test were simulated respectively. Experiments show that the improved scheme has the advantages of high computational efficiency and small computational error.

Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/21222
Collection光电信息技术研究室
Corresponding Author李凯强
Affiliation1.中国科学院沈阳自动化研究所
2.中国科学院大学
3.中国科学院光电信息处理重点实验室
4.辽宁省图像理解与视觉计算重点实验室
Recommended Citation
GB/T 7714
李凯强,朱丹,佟新鑫. 基于改进曲面拟合法的数字散斑相关方法研究[J]. 激光与光电子学进展,2018,55(5):1-7.
APA 李凯强,朱丹,&佟新鑫.(2018).基于改进曲面拟合法的数字散斑相关方法研究.激光与光电子学进展,55(5),1-7.
MLA 李凯强,et al."基于改进曲面拟合法的数字散斑相关方法研究".激光与光电子学进展 55.5(2018):1-7.
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