Home | Browse Archives | About | For Contributors |
Sorry.
You are not permitted to access the full text of articles.
If you have any questions about permissions,
please contact the Society.
죄송합니다.
회원님은 논문 이용 권한이 없습니다.
권한 관련 문의는 학회로 부탁 드립니다.
[ Technical Papers ] | |
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 30, No. 3, pp. 233-238 | |
Abbreviation: J. Korean Soc. Manuf. Technol. Eng. | |
ISSN: 2508-5107 (Online) | |
Print publication date 15 Jun 2021 | |
Received 02 Feb 2021 Revised 26 Mar 2021 Accepted 19 Apr 2021 | |
DOI: https://doi.org/10.7735/ksmte.2021.30.3.233 | |
Dot Grid와 카메라 영상 오차 보정 알고리즘을 이용한 이차 전지 전극 Alignment 정밀 검사 | |
Precision Inspection of Secondary Cell Electrode Alignment with Camera Image Error Correction Algorithm using Dot Grid | |
aDepartment of Semiconductoy Equipment Engineering, Far East University | |
bDepartment of Advanced Material Engineering, Chungbuk National University | |
cGanghan Innosys, Co. | |
Correspondence to : *Tel.: +82-43-261-2442 E-mail address: eungsuk@cbnu.ac.kr (Eung-Suk Lee). | |
Industrial cameras used in traditional machine vision are subject to errors because of the distortions induced in the images due to the camera lenses and various external factors. To calibrate these errors, a picture of the dot grid was taken and the center of the circle was calculated using the least squares circle-fitting method and the centroid method. In addition, an error map was generated using these methods, which can be used for generating a first-order equation with the least squares method. It is possible to calibrate the object point. In this work, an equation that can correct this error and perform an accurate measurement. It was applied to the stacking equipment of secondary batteries for automobiles to an algorithm that accurately measures the alignment of the cathode and the anode.
Keywords: Calibration, Centroid, Dot grid, LSC, Secondary cell electrode |
1. | Lee, E. S., Lim, J. T., 2019, Method and System for Calibration using Dot Grid Pattern Image and Computer Readable Medium Storing a Program of the Same, KR patent 10-2019-0012960. |
2. | Lee, E. S., Kim, K. H., 2016, Method for Calibrating Distortion of Image in Camera, KR patent 10-2014-0079742. |
3. | Kim, S. H., 1998, Photo lens, SciencePlus, Republic of korea. |
4. | Zhang, Z., 2000, A Flexible New Technique for Camera Calibration, IEEE Trans. Pattern Anal. Mach. Intell., 22:11 1330-1334 |
5. | Kharrazi, M., Sencar, H. T., Memon, N., 2004, Blind Source Camera Identification, IEEE Int. Conf. on Image Proc. (ICIP ’04), 709-712 |
Assistant Professor in the Department of Semiconductor Equipment Engineering, Far East University,His research interest in Machine.
E-mail:baeiljin@gmail.com
Researcher, Department of Mechanical Engineering, Chungbuk National University.His research interest is Machine.
E-mail: phj8650@naver.com
Researcher, Department of Mechanical Engineering,Ganghan Inosys.His research interest is Machine.
E-mail: dnjs20100@naver.com
Researcher, Department of Mechanical Engineering, Ganghan Inosys.His research interest is Machine.
E-mail: minsic16@naver.com
Researcher, Department of Mechanical Engineering,Ganghan Inosys.His research interest is Machine.
E-mail: jauswi135@naver.com
Researcher, Department of Mechanical Engineering, Ganghan Inosys.His research interest in Machine.
E-mail: eungsuk@cbnu.ac.kr