Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Liangen, Yang"'
Autor:
Pengfei Ding, Liangen Yang
Publikováno v:
Applied Sciences, Vol 14, Iss 13, p 5658 (2024)
To address the technical challenge of identifying tiny defects, especially dust and point defects, on mobile phone flat glass, an automatic optical inspection system is established. The system investigates algorithms including imaging principles, tar
Externí odkaz:
https://doaj.org/article/c016bb70253f4c82b1e3e9e1845ef8f9
Publikováno v:
ISCSIC
In the industrial production, both ceiling lighting and sunlight through the ceiling in the workshop can cause noise spots in the image acquired in the CCD laser online positioning system. Moreover, these ambient noise spots are interlaced with the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c999e1acbf0aeef91f3a2668356fbd86
https://doi.org/10.1145/3386164.3387258
https://doi.org/10.1145/3386164.3387258
Publikováno v:
ISCSIC
Many complex samples must be preprocessed to analyze and detect. And sample preprocessed accounts for more than 60% of the entire sample analysis process. In order to improve efficiency and accuracy, an automated multi-sample preprocessing platform w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad1c0d45125638ce4c26815a543c4e3a
https://doi.org/10.1145/3386164.3387259
https://doi.org/10.1145/3386164.3387259
Autor:
Qinghua Lv, Zheng Kuang, Yiyuan Shang, Zhongsheng Zhai, Xuanze Wang, Peter Bennett, Liangen Yang
Publikováno v:
Optics Communications. 366:168-173
A measuring method for the determination of error motions of linear stages based on non-diffracting beams (NDB) is presented. A right-angle prism and a beam splitter are adopted as the measuring head, which is fixed on the moving stage in order to se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a50917337e33581146fb7720ed8b423
https://doi.org/10.1016/j.optcom.2015.12.051
https://doi.org/10.1016/j.optcom.2015.12.051
Publikováno v:
2017 International Conference on Mechanical, System and Control Engineering (ICMSC).
In the process of curve fitting, the unknown relationship between the data sampling rate and the frequency of the measured signal as well as signal's frequency fluctuations can cause remarkable error. In this paper, a sine curve fitting algorithm wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0adae25fb0f3d194cc848a10a26eb57a
https://doi.org/10.1109/icmsc.2017.7959501
https://doi.org/10.1109/icmsc.2017.7959501
Publikováno v:
2017 International Conference on Mechanical, System and Control Engineering (ICMSC).
Complex mechanical parts have characteristics of irregularity and certain statistical self-similarity, which can be described by fractal dimension. And the values of their fractal dimension can be used as an measurement to classify and recognize the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32580258ed144a1342b5278961adbc8e
https://doi.org/10.1109/icmsc.2017.7959444
https://doi.org/10.1109/icmsc.2017.7959444
Publikováno v:
SPIE Proceedings.
Fractal dimension is an important quantitative characteristic of a image, which can be widely used in image analysis. Differential box-counting method which is one of many calculation methods of a fractal dimension has been frequently used due to its
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::459f5cbce9b9ba52f0d4031bf3537b5b
https://doi.org/10.1117/12.2214977
https://doi.org/10.1117/12.2214977
Publikováno v:
SPIE Proceedings.
Differential box-counting (DBC) method has been widely used to calculate fractal dimension. analyzing the result of fractal dimension with background image by estimating this traditional method,we find that this algorithm has the limitation to estima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6df901dbcb6531c1accda2a4493f531f
https://doi.org/10.1117/12.2214143
https://doi.org/10.1117/12.2214143
Publikováno v:
Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology.
The depth of an image system can be extended by an axicon which can generate line focus. According to physical optical theory, the diffracting patterns of the defocus point spread function (PSF) for the imaging system with axicon are analyzed through
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17ebf126aee640adbcd00b13143c08bc
https://doi.org/10.5220/0005742201350139
https://doi.org/10.5220/0005742201350139
Publikováno v:
Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology.
For the monochromatic light interferometry under open-loop PZT drive, a high precision method for phase recognization that satisfies the four steps phase-shift algorithm is proposed. The total idea of the phase recognization method is as follows. Fir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::198134e55a5465b6e41b179e24cfec15
https://doi.org/10.5220/0005737701230129
https://doi.org/10.5220/0005737701230129