Research on the Evaluation Algorithm of Curve Profile Based on the Image

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Research on the Evaluation Algorithm of Curve Profile Based on the Image

Article | 更新时间：2020-08-13

- Research on the Evaluation Algorithm of Curve Profile Based on the Image
- Optics and Precision Engineering Vol. 16, Issue 11, Pages: 2281-2285(2008)
- 作者机构：
  
  天津大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：30 January 2008，
  
  Revised：03 April 2008，
  
  Published Online：25 November 2008，
  
  Published：25 November 2008
- 稿件说明：
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张进,王仲,贡力,叶声华. 基于图像的线轮廓度评价算法研究[J]. 光学精密工程, 2008,16(11):2281-2285

Research on the Evaluation Algorithm of Curve Profile Based on the Image[J]. Optics and precision engineering, 2008, 16(11): 2281-2285.
张进,王仲,贡力,叶声华. 基于图像的线轮廓度评价算法研究[J]. 光学精密工程, 2008,16(11):2281-2285 DOI：

Research on the Evaluation Algorithm of Curve Profile Based on the Image[J]. Optics and precision engineering, 2008, 16(11): 2281-2285. DOI：

摘要

根据微型零件的成像特点，为了实现其轮廓的高精度测量，提出了一种基于离散点的轮廓度评价算法——被测轮廓与理论轮廓离散点间的最小距离法：首先提取出被测轮廓的边缘点信息，其次依据理论轮廓计算出一系列间距极小的坐标点并建立坐标系将被测轮廓点与理论轮廓点对应，最后计算出每个被测轮廓点到最近理论轮廓点的距离作为该点的轮廓度误差。实验结果证明，精度优于1.5个像素，此方法可有效的提高了线轮廓度的评价精度和效率。

Abstract

According to the imaging characteristics

for achieving high precision measurement in linear profile of micro-parts

an evaluation algorithm of linear profile which based on discrete points is proposed. Firstly

edge detector is used to obtain the edge of the micro-parts. After that

a series of points which has tiny interval can be calculated by the expressions of designed profile. In addition

a system of coordinates is build for corresponding the point of actual profile and the point of designed profile. Finally

for every point of actual profile，we can calculate the minimum distance between it and the points of designed profile as the linear profile error of the point. The experimental results showed that the error is less than 1.5 pixels，so the proposed algorithm can significantly improve the precision and efficiency in measurement of linear profile.

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Related Author

王仲操晶晶张进

Related Institution

天津大学精仪学院国家重点实验室305室天津大学精密仪器与光电子工程学院国家重点实验室天津大学

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