基于相位测量偏折术的透明物体表面缺陷检测

doi:10.16180/j.cnki.issn1007-7820.2024.05.009

Abstract

Abstract:

At present,the traditional method is still used to control the quality of glass,lens and other transparent objects in China,and the traditional visual evaluation method is inefficient.In order to realize automatic detection of surface defects of transparent objects,a transmission detection method based on PMD(Phase Measuring Deflectometry) is proposed.The structure light fringe pattern is generated by PMD algorithm combined with the new phase shift pattern generation formula,and the fringe pattern is projected to the surface of the measured object using the transmission system. The distorted fringe image after refraction of the measured object is collected by the camera,then the absolute phase diagrams are generated, and the defects are extracted by identifying the local distortion in the absolute phase diagram.Through analyzing the reason of false detection caused by periodic misalignment,a method of correcting absolute phase periodic misalignment is proposed. The new formula of phase shift pattern generation can also correct periodic misalignment in advance,the combination of the two methods can improve the precision of phase unwrapping. A concave and convex lens with a focal length of 300 mm is taken as an example, the experimental results show that the proposed method can accurately extract the local distortion in the absolute phase diagram caused by surface defects with an accuracy of 0.1 mm.

Key words: transparent object, automatic detection of surface defects, phase measuring deflectometry, structured light stripe pattern, transmission system, phase unfolding, local distortion, misalignment of periods

CLC Number:

TP391

DING Yujie, ZHOU Zhifeng, WANG Yong, WANG Lirui. Surface Defect Detection of Transparent Objects Based on Phase Measuring Deflectometry[J].Electronic Science and Technology, 2024, 37(5): 62-70.

Figures/Tables 18

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

Figure 11.

Figure 12.

Figure 13.

Figure 14.

Figure 15.

Figure 16.

Figure 17.

Figure 18.

References 19

[1]	郝治超, 刘元坤. 基于相位测量偏折术的透明物体表面形貌测量[J]. 光学与光电技术, 2019, 17(1):63-69.
	Hao Zhichao, Liu Yuankun. Transparent object shape measurement based on deflectometry[J]. Optics and Optoelectronics Technology, 2019, 17(1):63-69.
[2]	王维. 基于显微相位测量偏折术的表面疵病检测方法研究[D]. 成都: 电子科技大学, 2021:41-47
	Wang Wei. Research on surface defect detection method based on microphase measuring deflectometry[D]. Chengdu: University of Electronic Science and Technology of China, 2021:41-47.
[3]	张凯龙, 钱莉, 朱春雷. 基于相位测量偏折法的类镜面缺陷检测[J]. 激光与光电子学进展, 2022, 59(5):188-195.
	Zhang Kailong, Qian Li, Zhu Chunlei. Defect detection in mirror-like surface based on phase measuring deflectometry[J]. Laser and Optronics Progress, 2022, 59(5):188-195.
[4]	张宗华, 刘巍, 刘国栋, 等. 三维视觉测量技术及应用进展[J]. 中国图象图形学报, 2021, 26(6):1483-1502.
	Zhang Zonghua, Liu Wei, Liu Guodong, et al. Overview of the development and application of 3D vision measurement technology[J]. Journal of Image and Graphics, 2021, 26(6):1483-1502.
[5]	张志浩, 付东翔, 闫蕊. 一种基于图像处理技术的镜框尺寸测量系统[J]. 电子科技, 2022, 35(11):42-47.
	Zhang Zhihao, Fu Dongxiang, Yan Rui. A measuring system for frame size based on image processing technology[J]. Electronic Science and Technology, 2022, 35(11):42-47.
[6]	向戈川, 林有希, 任志英. 光学元件表面缺陷检测方法研究现状[J]. 光学仪器, 2018, 40(1):78-87.
	Xiang Gechuan, Lin Youxi, Ren Zhiying. Study on surface defect detection method of optical element[J]. Optical Instruments, 2018, 40(1):78-87.
[7]	张磊, 刘东, 师途, 等. 光学自由曲面面形检测技术[J]. 中国光学, 2017, 10(3):283-299.
	Zhang Lei, Liu Dong, Shi Tu, et al. Optical free-form surfaces testing technologies[J]. Chinese Optics, 2017, 10(3):283-299.
[8]	陈红丽. 基于结构光的玻璃面板缺陷检测方法研究[D]. 成都: 电子科技大学, 2018:55-58.
	Chen Hongli. Research on defect detection method of glass panel based on structured light[D]. Chengdu: University of Electronic Science and Technology of China, 2018:55-58.
[9]	Huang Y Y, Yue H M, Fang Y Y, et al. Structured-light modulation analysis technique for contamination and defect detection of specular surfaces and transparent objects[J]. Optics Express, 2019, 27(26):37721-37735. doi: 10.1364/OE.27.037721 pmid: 31878549
[10]	Tao S W, Yue H M, Chen H L, et al. Elimination of parasitic reflections for objects with high transparency in phase measuring deflectometry[J]. Results in Physics, 2019, 15(7):102734-102741.
[11]	Desoli G S, Fioravanti S, Fioravanti R, et al. A system for automated visual inspection of ceramic tiles[C]. Beijing: Conference of the IEEE Industrial Electronics Society, 1993:24-30.
[12]	王维, 王杰, 黄易杨, 等. 基于偏振透射结构光的透明物体表面缺陷检测方法[J]. 光学学报, 2021, 41(18):128-135.
	Wang Wei, Wang Jie, Huang Yiyang, et al. Surface defect detection in transparent objects using polarized transmission structured light[J]. Acta Optica Sinica, 2021, 41(18):128-135.
[13]	黄易杨. 相位测量偏折术关键技术研究[D]. 成都: 电子科技大学, 2020:61-64.
	Huang Yiyang. A research on key techniques of phase measuring deflectometry[D]. Chengdu: University of Electronic Science and Technology of China, 2020:61-64.
[14]	Su L K, Su X Y, Li W S, et al. Applicationof modulation measurement profilometryt objects with surface holes[J]. Applied Optics, 1999, 38(7):1153-1158. pmid: 18305725
[15]	岳慧敏, 李绒, 潘志鹏, 等. 相位测量偏折术中高质量条纹的获取[J]. 光学学报, 2017, 37(11):171-180.
	Yue Huimin, Li Rong, Pan Zhipeng, et al. High quality fringe patterns captured from phase measuring deflectometry[J]. Acta Optica Sinica, 2017, 37(11):171-180.
[16]	陶迁, 周志峰, 吴明晖, 等. 基于相位测量偏折术的反射表面缺陷检测[J]. 液晶与显示, 2020, 35(12):1315-1322.
	Tao Qian, Zhou Zhifeng, Wu Minghui, et al. Detection of reflective surface defects based on phase measuring deflectometry[J]. Chinese Journal of Liquid Crystals and Displays, 2020, 35(12):1315-1322.
[17]	姜硕, 杨凌辉, 任永杰, 等. 基于相位偏折的类镜面物体表面缺陷检测[J]. 激光与光电子学进展, 2020, 57(3):113-121.
	Jiang Shuo, Yang Linhui, Ren Yongjie, et al. Defect detection in mirror-like object surface based on phase defletion[J]. Laser and Optoelectronics Progress, 2020, 57(3):113-121.
[18]	Zheng D L, Da F P, Qian K M, et al. Phase-shifting profilometry combined with graycode patterns projection:Unwrapping error removal by an adaptive median filter[J]. Optics Express, 2017, 25(5):4700-4713.
[19]	Raafat H, Taboun S. An integrated robotic and machine vision system for surface flaw detection and classification[J]. Computers and Industrial Engineering, 1996, 30(1):27-40.

Surface Defect Detection of Transparent Objects Based on Phase Measuring Deflectometry

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 18

References 19

Related Articles 1

Metrics

Comments

Recommended 0