A Cost-Effective Method for Automatically Measuring Mechanical Parts Using Monocular Machine Vision
Automatic measurements via image processing can accelerate measurements and provide comprehensive evaluations of mechanical parts. This paper presents a comprehensive approach to automating evaluations of planar dimensions in mechanical parts, providing significant advancements in terms of cost-effe...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/13/5994 |
| _version_ | 1797590891380080640 |
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| author | Vinicius V. E. Nogueira Luiz F. Barca Tales C. Pimenta |
| author_facet | Vinicius V. E. Nogueira Luiz F. Barca Tales C. Pimenta |
| author_sort | Vinicius V. E. Nogueira |
| collection | DOAJ |
| description | Automatic measurements via image processing can accelerate measurements and provide comprehensive evaluations of mechanical parts. This paper presents a comprehensive approach to automating evaluations of planar dimensions in mechanical parts, providing significant advancements in terms of cost-effectiveness, accuracy, and repeatability. The methodology employed in this study utilizes a configuration comprising commonly available products in the industrial computer vision market, therefore enabling precise determinations of external contour specifications for mechanical components. Furthermore, it presents a functional prototype for making planar measurements by incorporating an improved subpixel edge-detection method, thus ensuring precise image-based measurements. The article highlights key concepts, describes the measurement procedures, and provides comparisons and traceability tests as a proof of concept for the system. The results show that this vision system did achieve suitable precision, with a mean error of 0.008 mm and a standard deviation of 0.0063 mm, when measuring gauge blocks of varying lengths at different heights. Moreover, when evaluating a circular sample, the system resulted in a maximum deviation of 0.013 mm, compared to an alternative calibrated measurement machine. In conclusion, the prototype validates the methods for planar dimension evaluations, highlighting the potential for enhancing manual measurements, while also maintaining accessibility. The presented system expands the possibilities of machine vision in manufacturing, especially in cases where the cost or agility of current systems is limited. |
| first_indexed | 2024-03-11T01:29:54Z |
| format | Article |
| id | doaj.art-f8e6b0fa75cf4b799d5d681cf471a37d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T01:29:54Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f8e6b0fa75cf4b799d5d681cf471a37d2023-11-18T17:29:47ZengMDPI AGSensors1424-82202023-06-012313599410.3390/s23135994A Cost-Effective Method for Automatically Measuring Mechanical Parts Using Monocular Machine VisionVinicius V. E. Nogueira0Luiz F. Barca1Tales C. Pimenta2Federal Institute of Paraná, Campo Largo 83607-140, BrazilInstitute of Mechanical Engineering, Federal University of Itajubá, Itajubá 37500-903, BrazilInstitute of Systems Engineering and Information Technology, Federal University of Itajubá, Itajubá 37500-903, BrazilAutomatic measurements via image processing can accelerate measurements and provide comprehensive evaluations of mechanical parts. This paper presents a comprehensive approach to automating evaluations of planar dimensions in mechanical parts, providing significant advancements in terms of cost-effectiveness, accuracy, and repeatability. The methodology employed in this study utilizes a configuration comprising commonly available products in the industrial computer vision market, therefore enabling precise determinations of external contour specifications for mechanical components. Furthermore, it presents a functional prototype for making planar measurements by incorporating an improved subpixel edge-detection method, thus ensuring precise image-based measurements. The article highlights key concepts, describes the measurement procedures, and provides comparisons and traceability tests as a proof of concept for the system. The results show that this vision system did achieve suitable precision, with a mean error of 0.008 mm and a standard deviation of 0.0063 mm, when measuring gauge blocks of varying lengths at different heights. Moreover, when evaluating a circular sample, the system resulted in a maximum deviation of 0.013 mm, compared to an alternative calibrated measurement machine. In conclusion, the prototype validates the methods for planar dimension evaluations, highlighting the potential for enhancing manual measurements, while also maintaining accessibility. The presented system expands the possibilities of machine vision in manufacturing, especially in cases where the cost or agility of current systems is limited.https://www.mdpi.com/1424-8220/23/13/5994computer visionclose-range terrestrial photogrammetrymonocular visionplanar measurement |
| spellingShingle | Vinicius V. E. Nogueira Luiz F. Barca Tales C. Pimenta A Cost-Effective Method for Automatically Measuring Mechanical Parts Using Monocular Machine Vision Sensors computer vision close-range terrestrial photogrammetry monocular vision planar measurement |
| title | A Cost-Effective Method for Automatically Measuring Mechanical Parts Using Monocular Machine Vision |
| title_full | A Cost-Effective Method for Automatically Measuring Mechanical Parts Using Monocular Machine Vision |
| title_fullStr | A Cost-Effective Method for Automatically Measuring Mechanical Parts Using Monocular Machine Vision |
| title_full_unstemmed | A Cost-Effective Method for Automatically Measuring Mechanical Parts Using Monocular Machine Vision |
| title_short | A Cost-Effective Method for Automatically Measuring Mechanical Parts Using Monocular Machine Vision |
| title_sort | cost effective method for automatically measuring mechanical parts using monocular machine vision |
| topic | computer vision close-range terrestrial photogrammetry monocular vision planar measurement |
| url | https://www.mdpi.com/1424-8220/23/13/5994 |
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