BOLT LOOSENING ANGLE DETECTION METHOD BASED ON COLOR SEGMENTATION
To achieve quantitative detection of bolt loosening angles through single frame images, a method based on color segmentation and connected domain feature processing was designed. Firstly, a method for performing nonlinear stretching, normalization and optimal threshold segmentation on <italic>...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2025-05-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.05.012 |
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| _version_ | 1850270845888364544 |
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| author | KANG Jingjie ZHANG Lijun SUN Yuandong YANG Xiaoyu WANG Ruolan ZHAO Tianhao |
| author_facet | KANG Jingjie ZHANG Lijun SUN Yuandong YANG Xiaoyu WANG Ruolan ZHAO Tianhao |
| author_sort | KANG Jingjie |
| collection | DOAJ |
| description | To achieve quantitative detection of bolt loosening angles through single frame images, a method based on color segmentation and connected domain feature processing was designed. Firstly, a method for performing nonlinear stretching, normalization and optimal threshold segmentation on <italic>a</italic> component successively in the Lab color space was designed to segment and represent the red anti-loosening line image of the bolt loosening angle. Secondly, the morphological operations were performed on the image by using the open operation. Then, the orientation vector of the connected domain in the anti-loose line image was determined by computing the geometric moments. Finally, the bolt loosening angle was determined through the four-quadrant arctangent function. The results demonstrate that the precise measurement of the bolt loosening angle through a single frame image can be achieved by this detection algorithm, with a maximal relative error of 1.80%, its accuracy meets the needs of engineering practice and has strong engineering application value. |
| format | Article |
| id | doaj-art-f0b45c61d34d4ef5b9fba069b49e52cf |
| institution | OA Journals |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2025-05-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-f0b45c61d34d4ef5b9fba069b49e52cf2025-08-20T01:52:25ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692025-05-0147102109100920927BOLT LOOSENING ANGLE DETECTION METHOD BASED ON COLOR SEGMENTATIONKANG JingjieZHANG LijunSUN YuandongYANG XiaoyuWANG RuolanZHAO TianhaoTo achieve quantitative detection of bolt loosening angles through single frame images, a method based on color segmentation and connected domain feature processing was designed. Firstly, a method for performing nonlinear stretching, normalization and optimal threshold segmentation on <italic>a</italic> component successively in the Lab color space was designed to segment and represent the red anti-loosening line image of the bolt loosening angle. Secondly, the morphological operations were performed on the image by using the open operation. Then, the orientation vector of the connected domain in the anti-loose line image was determined by computing the geometric moments. Finally, the bolt loosening angle was determined through the four-quadrant arctangent function. The results demonstrate that the precise measurement of the bolt loosening angle through a single frame image can be achieved by this detection algorithm, with a maximal relative error of 1.80%, its accuracy meets the needs of engineering practice and has strong engineering application value.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.05.012Bolt looseningAngle detectionColor segmentationConnected domain featureGeometric momentVector calculation |
| spellingShingle | KANG Jingjie ZHANG Lijun SUN Yuandong YANG Xiaoyu WANG Ruolan ZHAO Tianhao BOLT LOOSENING ANGLE DETECTION METHOD BASED ON COLOR SEGMENTATION Jixie qiangdu Bolt loosening Angle detection Color segmentation Connected domain feature Geometric moment Vector calculation |
| title | BOLT LOOSENING ANGLE DETECTION METHOD BASED ON COLOR SEGMENTATION |
| title_full | BOLT LOOSENING ANGLE DETECTION METHOD BASED ON COLOR SEGMENTATION |
| title_fullStr | BOLT LOOSENING ANGLE DETECTION METHOD BASED ON COLOR SEGMENTATION |
| title_full_unstemmed | BOLT LOOSENING ANGLE DETECTION METHOD BASED ON COLOR SEGMENTATION |
| title_short | BOLT LOOSENING ANGLE DETECTION METHOD BASED ON COLOR SEGMENTATION |
| title_sort | bolt loosening angle detection method based on color segmentation |
| topic | Bolt loosening Angle detection Color segmentation Connected domain feature Geometric moment Vector calculation |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.05.012 |
| work_keys_str_mv | AT kangjingjie boltlooseningangledetectionmethodbasedoncolorsegmentation AT zhanglijun boltlooseningangledetectionmethodbasedoncolorsegmentation AT sunyuandong boltlooseningangledetectionmethodbasedoncolorsegmentation AT yangxiaoyu boltlooseningangledetectionmethodbasedoncolorsegmentation AT wangruolan boltlooseningangledetectionmethodbasedoncolorsegmentation AT zhaotianhao boltlooseningangledetectionmethodbasedoncolorsegmentation |