A New Vision Measurement Technique with Large Field of View and High Resolution
The three-dimensional (3D) displacement resolution of conventional visual measurement systems can only reach tens of microns in cases involving long measuring distances (2.5 m) and large fields of view (1.5 m × 1.5 m). Therefore, a stereo vision measurement technology based on confocal scanning is p...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/14/6615 |
| _version_ | 1797587483633909760 |
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| author | Yong Li Chenguang Liu Xiaoyu You Jian Liu |
| author_facet | Yong Li Chenguang Liu Xiaoyu You Jian Liu |
| author_sort | Yong Li |
| collection | DOAJ |
| description | The three-dimensional (3D) displacement resolution of conventional visual measurement systems can only reach tens of microns in cases involving long measuring distances (2.5 m) and large fields of view (1.5 m × 1.5 m). Therefore, a stereo vision measurement technology based on confocal scanning is proposed herein. This technology combines macroscopic visual measurement technology with confocal microscopic measurement technology to achieve a long measuring distance, a large field of view, and micron-level measuring resolution. First, we analyzed the factors affecting the 3D resolution of the visual system and developed a 3D resolution model of the visual system. Subsequently, we fabricated a prototype based on the resolution model and the proposed stereo vision measurement technology. The 3D displacement resolution measurement results in the full field of view show that the displacement resolutions of the developed equipment in the x-, y-, and z-directions can reach 2.5, 2.5, and 6 μm, respectively. |
| first_indexed | 2024-03-11T00:40:34Z |
| format | Article |
| id | doaj.art-f0f76d711f4644b5bd871dbe4dd0bf3f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T00:40:34Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f0f76d711f4644b5bd871dbe4dd0bf3f2023-11-18T21:20:12ZengMDPI AGSensors1424-82202023-07-012314661510.3390/s23146615A New Vision Measurement Technique with Large Field of View and High ResolutionYong Li0Chenguang Liu1Xiaoyu You2Jian Liu3Research Center of Advanced Microscopy and Instrumentation, Harbin Institute of Technology, Harbin 150001, ChinaResearch Center of Basic Space Science, Harbin Institute of Technology, Harbin 150001, ChinaResearch Center of Advanced Microscopy and Instrumentation, Harbin Institute of Technology, Harbin 150001, ChinaResearch Center of Advanced Microscopy and Instrumentation, Harbin Institute of Technology, Harbin 150001, ChinaThe three-dimensional (3D) displacement resolution of conventional visual measurement systems can only reach tens of microns in cases involving long measuring distances (2.5 m) and large fields of view (1.5 m × 1.5 m). Therefore, a stereo vision measurement technology based on confocal scanning is proposed herein. This technology combines macroscopic visual measurement technology with confocal microscopic measurement technology to achieve a long measuring distance, a large field of view, and micron-level measuring resolution. First, we analyzed the factors affecting the 3D resolution of the visual system and developed a 3D resolution model of the visual system. Subsequently, we fabricated a prototype based on the resolution model and the proposed stereo vision measurement technology. The 3D displacement resolution measurement results in the full field of view show that the displacement resolutions of the developed equipment in the x-, y-, and z-directions can reach 2.5, 2.5, and 6 μm, respectively.https://www.mdpi.com/1424-8220/23/14/6615visual technologyconfocal technologylarge field of viewthree-dimensional resolutionconfocal scanningoptical measurement |
| spellingShingle | Yong Li Chenguang Liu Xiaoyu You Jian Liu A New Vision Measurement Technique with Large Field of View and High Resolution Sensors visual technology confocal technology large field of view three-dimensional resolution confocal scanning optical measurement |
| title | A New Vision Measurement Technique with Large Field of View and High Resolution |
| title_full | A New Vision Measurement Technique with Large Field of View and High Resolution |
| title_fullStr | A New Vision Measurement Technique with Large Field of View and High Resolution |
| title_full_unstemmed | A New Vision Measurement Technique with Large Field of View and High Resolution |
| title_short | A New Vision Measurement Technique with Large Field of View and High Resolution |
| title_sort | new vision measurement technique with large field of view and high resolution |
| topic | visual technology confocal technology large field of view three-dimensional resolution confocal scanning optical measurement |
| url | https://www.mdpi.com/1424-8220/23/14/6615 |
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