Title:
MACHINE VISION-BASED DETECTING METHOD AND SYSTEM FOR GLASS BOTTLE BOTTOM DEFECTS
Document Type and Number:
WIPO Patent Application WO/2022/027949
Kind Code:
A1
Abstract:
A machine vision-based detecting method and system for glass bottle bottom defects. The detecting method comprises: step 1, acquiring a bottle bottom image, locating a bottle bottom area by combining three-point random circle detection with least square circle detection, and dividing the bottle bottom area into three sub-areas: a central circular plane area, an annular plane area and an annular texture area; step 2, performing defect detection on the central circular plane area by a saliency detection-based method and marking defects; step 3, performing defect detection on the annular plane area by a multi-scale filtering-based method and marking defects; step 4, performing defect detection on the annular texture area by a template matching-based method and marking defects; and step 5, integrating the central circular plane area, the annular plane area and the annular texture area marked with defects in steps 2 to 4, to obtain a bottle bottom image marked with all defects. This method has higher bottle bottom defect detection precision and faster execution speed.
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Inventors:
ZHOU XIANEN (CN)
WANG YAONAN (CN)
ZHU QING (CN)
MAO JIANXU (CN)
ZHANG HUI (CN)
LIU XUEBING (CN)
WANG YAONAN (CN)
ZHU QING (CN)
MAO JIANXU (CN)
ZHANG HUI (CN)
LIU XUEBING (CN)
Application Number:
PCT/CN2021/075699
Publication Date:
February 10, 2022
Filing Date:
February 07, 2021
Export Citation:
Assignee:
UNIV HUNAN (CN)
International Classes:
G01N21/958; G01N21/88
Foreign References:
| CN111896556A | 2020-11-06 | |||
| CN103523491A | 2014-01-22 | |||
| CN105046697A | 2015-11-11 | |||
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| CN108389179A | 2018-08-10 | |||
| CN106981060A | 2017-07-25 | |||
| JP2011133254A | 2011-07-07 |
Other References:
ZHOU XIANEN; WANG YAONAN; XIAO CHANGYAN; ZHU QING; LU XIAO; ZHANG HUI; GE JI; ZHAO HUIHUANG: "Automated Visual Inspection of Glass Bottle Bottom With Saliency Detection and Template Matching", IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, IEEE, USA, vol. 68, no. 11, 1 November 2019 (2019-11-01), USA, pages 4253 - 4267, XP011749364, ISSN: 0018-9456, DOI: 10.1109/TIM.2018.2886977
XIAN ZHOU, EN，WANG ', KANGJUN，YI YAONAN，LI, CHENGZHONG GUO，WU: "New bottle mouth positioning method based on multiple randomized circle detection and fitting degree evaluation", JOURNAL OF IRON AND STEEL RESEARCH, GANGTIE YANJIU XUEBAO, CN, vol. 36, no. 9, 30 September 2015 (2015-09-30), CN , XP055895537, ISSN: 1001-0963, DOI: 10.19650/j.cnki.cjsi.2015.09.013
XIAN ZHOU, EN，WANG ', KANGJUN，YI YAONAN，LI, CHENGZHONG GUO，WU: "New bottle mouth positioning method based on multiple randomized circle detection and fitting degree evaluation", JOURNAL OF IRON AND STEEL RESEARCH, GANGTIE YANJIU XUEBAO, CN, vol. 36, no. 9, 30 September 2015 (2015-09-30), CN , XP055895537, ISSN: 1001-0963, DOI: 10.19650/j.cnki.cjsi.2015.09.013
Attorney, Agent or Firm:
CHANGSHA RONG ZHI PATENT AGENCY (CN)
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