Temperature Measurement Method of Flame Image Fusion with Different Exposures
Fixed exposure will lead to underexposure or overexposure of collected flame radiation images using CCD, which has a great influence on the temperature measuring accuracy. A temperature measurement method was proposed by image fusion with multi-exposure, which can eliminate the influence of insuffic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/6/1487 |
| _version_ | 1811305223980843008 |
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| author | Liang Shan Huiyun Huang Bo Hong Jun Zhao Daodang Wang Ming Kong |
| author_facet | Liang Shan Huiyun Huang Bo Hong Jun Zhao Daodang Wang Ming Kong |
| author_sort | Liang Shan |
| collection | DOAJ |
| description | Fixed exposure will lead to underexposure or overexposure of collected flame radiation images using CCD, which has a great influence on the temperature measuring accuracy. A temperature measurement method was proposed by image fusion with multi-exposure, which can eliminate the influence of insufficient underexposure and overexposure. The approach was first to acquire a group of flame radiation images during different exposures. Then a partial region with good exposure effect in each radiation image was obtained by segmentation, with which the complete flame image can be spliced together. An experimental system was built to calibrate the temperature measurement parameters by two-color pyrometry through a blackbody furnace. The relation between exposure time and monochromatic gray level, as well as the relation between the temperature and temperature measurement coefficient were obtained. A candle flame was selected as the measuring object and the complete and accurate flame temperature distribution was acquired following our proposed method. The experimental results show that, compared with the temperature measurement using a single exposure time, our method can effectively avoid the measurement error caused by underexposure and overexposure, and improve the measurement accuracy. |
| first_indexed | 2024-04-13T08:21:34Z |
| format | Article |
| id | doaj.art-b96a4ba2c5c54517b19c7632626aba42 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T08:21:34Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b96a4ba2c5c54517b19c7632626aba422022-12-22T02:54:38ZengMDPI AGEnergies1996-10732020-03-01136148710.3390/en13061487en13061487Temperature Measurement Method of Flame Image Fusion with Different ExposuresLiang Shan0Huiyun Huang1Bo Hong2Jun Zhao3Daodang Wang4Ming Kong5Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, ChinaFixed exposure will lead to underexposure or overexposure of collected flame radiation images using CCD, which has a great influence on the temperature measuring accuracy. A temperature measurement method was proposed by image fusion with multi-exposure, which can eliminate the influence of insufficient underexposure and overexposure. The approach was first to acquire a group of flame radiation images during different exposures. Then a partial region with good exposure effect in each radiation image was obtained by segmentation, with which the complete flame image can be spliced together. An experimental system was built to calibrate the temperature measurement parameters by two-color pyrometry through a blackbody furnace. The relation between exposure time and monochromatic gray level, as well as the relation between the temperature and temperature measurement coefficient were obtained. A candle flame was selected as the measuring object and the complete and accurate flame temperature distribution was acquired following our proposed method. The experimental results show that, compared with the temperature measurement using a single exposure time, our method can effectively avoid the measurement error caused by underexposure and overexposure, and improve the measurement accuracy.https://www.mdpi.com/1996-1073/13/6/1487image fusiontemperature measurementexposureflame. |
| spellingShingle | Liang Shan Huiyun Huang Bo Hong Jun Zhao Daodang Wang Ming Kong Temperature Measurement Method of Flame Image Fusion with Different Exposures Energies image fusion temperature measurement exposure flame. |
| title | Temperature Measurement Method of Flame Image Fusion with Different Exposures |
| title_full | Temperature Measurement Method of Flame Image Fusion with Different Exposures |
| title_fullStr | Temperature Measurement Method of Flame Image Fusion with Different Exposures |
| title_full_unstemmed | Temperature Measurement Method of Flame Image Fusion with Different Exposures |
| title_short | Temperature Measurement Method of Flame Image Fusion with Different Exposures |
| title_sort | temperature measurement method of flame image fusion with different exposures |
| topic | image fusion temperature measurement exposure flame. |
| url | https://www.mdpi.com/1996-1073/13/6/1487 |
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