RESEARCH ON IMAGE PROCESSING IN LENS FOCAL LENGTH MEASUREMENT
Volume 2, Issue 2, Pp 41-45, 2024
DOI: 10.61784/wjmp3003
Author(s)
YuShan Lei, ShiJun Xu*, ShuQian Wang, CaiFei Qiao
Affiliation(s)
School of Sciences, Xi'an Technological University, Xi'an 710021, China.
Corresponding Author
ShiJun Xu
ABSTRACT
In order to study lens focal length in detail, this paper uses image processing method to improve the research of lens focal length. The use of ruler, lens, lens to be measured and CCD to build an experimental system, the use of magnification method, the use of CCD to collect the lens to be measured focal plane image, using MATLAB digital image processing technology, through equalization, adding noise and other operations to measure the image height of the object, and then calculate the lens focal length size. The measurement of lens focal length is realized, and the feasibility of image processing in lens focal length measurement is verified.
KEYWORDS
Magnification method; Focal length of lens; CCD acquisition system; MATLAB
CITE THIS PAPER
YuShan Lei, ShiJun Xu*, ShuQian Wang, CaiFei Qiao. Research on image processing in lens focal length measurement. World Journal of Mathematics and Physics. 2024, 2(2): 41-45. DOI: 10.61784/wjmp3003.
REFERENCES
[1] Guo Zhenyu, Xie Na, He Pengju, et al. Design of experimental system for lens focal length measurement based on CCD. Computer Technology and Development, 2017, 27(05): 174-178.
[2] Liu Zhijian, Yan Yongfei, Sun Yingbi, et al. Research on transient stability verification of power grid black start. Electric Power Science and Engineering, 2019, 35(09): 1-8.
[3] Li Xiaolei. Focal length measurement of thin convex lens based on parallel optical tube method. Chinese Journal of Applied Optics, 2019, 40(05): 859-862.
[4] Li Wei, Liu Chao, Zhang Liwei, Liu Songjiang, Nie Ming. Research on focal length measurement of thin lens. Experimental Physics, 2014, 34(07): 27-29.
[5] YU Ying. Error analysis of focal length measurement of convex lens by autocollimation method. Physics Bulletin, 2015(09): 70-72.
[6] Tao Shufen, Zhou Xiaofeng. A simple method for measuring focal length and base point position of optical array. Experimental Science and Technology, 2009, 7(01): 59-60.
[7] SU Qiong. Measuring the focal length of thin lens by parallel light tube method. Journal of Qiandongnan Teachers College for Nationalities, 2006(06): 34-35.
[8] Yuan Lihua, Hong Huasong, Qi Xinmin. Design and Application of Notch Filter. Automation & Instrumentation, 2004(4): 20-22.
[9] Shahlin. Research and experimental analysis of image filtering denoising and edge detection technology. Jilin University, 2021.
[10] Gong Yun, Jie Xinyu. Research on image enhancement technology of underground coal mine based on homomorphic filter method. Coal Science and Technology, 2023, 51(03): 241-250.