Laser Spot Centering Algorithm of Double-Area Shrinking Iteration Based on Baseline Method
High-precision laser spot center detection occupies an important position in optical measurement technology. In this paper, we propose a laser spot centering method to improve positioning accuracy. This method is an iterative double-area shrinkage approach based on the baseline method. The backgroun...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/21/11302 |
| _version_ | 1827647290389561344 |
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| author | Haili Zhao Shuzhen Wang Wen Shen Wenbo Jing Lijie Li Xuan Feng Weiyin Zhang |
| author_facet | Haili Zhao Shuzhen Wang Wen Shen Wenbo Jing Lijie Li Xuan Feng Weiyin Zhang |
| author_sort | Haili Zhao |
| collection | DOAJ |
| description | High-precision laser spot center detection occupies an important position in optical measurement technology. In this paper, we propose a laser spot centering method to improve positioning accuracy. This method is an iterative double-area shrinkage approach based on the baseline method. The background noise baseline is calculated from the noise statistics of multiple background image frames acquired, and then the background noise is subtracted during the calculation while retaining the effective information of the spot region. The real spot area is located in the end by double-area shrinkage iteration to calculate the position of the spot center. Simulation and experimental results showed that our proposed method has strong anti-background noise interference ability, as well as higher positioning accuracy in locating the spot center than commonly used approaches; the maximum localization accuracy could reach 0.05 pixels, meeting the real-time requirements of the algorithm. The fluctuation range of measurement results was small when continuously detecting the center of the same laser spot, which could reach 0.04 and 0.03 pixels in the x- and y-directions, respectively. The result indicates that the method can meet the requirements of laser high-precision positioning. |
| first_indexed | 2024-03-09T19:17:06Z |
| format | Article |
| id | doaj.art-63a50ad362f544b8a51ad1bd87f6072e |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T19:17:06Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-63a50ad362f544b8a51ad1bd87f6072e2023-11-24T03:41:23ZengMDPI AGApplied Sciences2076-34172022-11-0112211130210.3390/app122111302Laser Spot Centering Algorithm of Double-Area Shrinking Iteration Based on Baseline MethodHaili Zhao0Shuzhen Wang1Wen Shen2Wenbo Jing3Lijie Li4Xuan Feng5Weiyin Zhang6School of Electronic Information and Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Electronic Information and Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaDepartment of Management Engineering, Jilin Communications Polytechnic, Changchun 130022, ChinaSchool of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaHigh-precision laser spot center detection occupies an important position in optical measurement technology. In this paper, we propose a laser spot centering method to improve positioning accuracy. This method is an iterative double-area shrinkage approach based on the baseline method. The background noise baseline is calculated from the noise statistics of multiple background image frames acquired, and then the background noise is subtracted during the calculation while retaining the effective information of the spot region. The real spot area is located in the end by double-area shrinkage iteration to calculate the position of the spot center. Simulation and experimental results showed that our proposed method has strong anti-background noise interference ability, as well as higher positioning accuracy in locating the spot center than commonly used approaches; the maximum localization accuracy could reach 0.05 pixels, meeting the real-time requirements of the algorithm. The fluctuation range of measurement results was small when continuously detecting the center of the same laser spot, which could reach 0.04 and 0.03 pixels in the x- and y-directions, respectively. The result indicates that the method can meet the requirements of laser high-precision positioning.https://www.mdpi.com/2076-3417/12/21/11302laser spot centerbaseline methoddouble-area shrinkage |
| spellingShingle | Haili Zhao Shuzhen Wang Wen Shen Wenbo Jing Lijie Li Xuan Feng Weiyin Zhang Laser Spot Centering Algorithm of Double-Area Shrinking Iteration Based on Baseline Method Applied Sciences laser spot center baseline method double-area shrinkage |
| title | Laser Spot Centering Algorithm of Double-Area Shrinking Iteration Based on Baseline Method |
| title_full | Laser Spot Centering Algorithm of Double-Area Shrinking Iteration Based on Baseline Method |
| title_fullStr | Laser Spot Centering Algorithm of Double-Area Shrinking Iteration Based on Baseline Method |
| title_full_unstemmed | Laser Spot Centering Algorithm of Double-Area Shrinking Iteration Based on Baseline Method |
| title_short | Laser Spot Centering Algorithm of Double-Area Shrinking Iteration Based on Baseline Method |
| title_sort | laser spot centering algorithm of double area shrinking iteration based on baseline method |
| topic | laser spot center baseline method double-area shrinkage |
| url | https://www.mdpi.com/2076-3417/12/21/11302 |
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