Dynamic Phase Measuring Profilometry Based on Tricolor Binary Fringe Encoding Combined Time-Division Multiplexing
A dynamic phase measuring profilometry (PMP) based on tricolor binary fringe combined time-division multiplexing principle is proposed. Only one tricolor binary fringe combined by red (R), green (G), and blue (B) binary fringes with the same fringe width but without any color overlapping one another...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/4/813 |
| _version_ | 1819207312924999680 |
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| author | Guangkai Fu Yiping Cao Yapin Wang Yingying Wan Lu Wang Chengmeng Li |
| author_facet | Guangkai Fu Yiping Cao Yapin Wang Yingying Wan Lu Wang Chengmeng Li |
| author_sort | Guangkai Fu |
| collection | DOAJ |
| description | A dynamic phase measuring profilometry (PMP) based on tricolor binary fringe combined time-division multiplexing principle is proposed. Only one tricolor binary fringe combined by red (R), green (G), and blue (B) binary fringes with the same fringe width but without any color overlapping one another is needed and sent into the flash memory of a high-speed digital light projector (HDLP) in advance. A specialized time-division multiplexing timing sequence is designed to control the HDLP to project the tricolor binary fringe saved in the flash memory onto the measured dynamic object separately and sequentially at 234 fps, at the same time, the projected light source mode is set as monochrome mode which means that all the RGB LEDs remain lighting. Meanwhile, it also triggers a high frame rate monochrome camera synchronized with the HDLP to capture the corresponding deformed patterns in R, G and B channels. By filtering, the nearly unbroken phase-shifting sinusoidal deformed patterns for three-step PMP can be extracted from the captured deformed patterns. It is equivalent to the three-dimensional (3D) shape reconstruction of the measured dynamic object at 78 fps. Experimental results verify the feasibility and the validity of the proposed method. It is effective for measuring the dynamic object and can avoid the color cross-talk effectively. |
| first_indexed | 2024-12-23T05:21:30Z |
| format | Article |
| id | doaj.art-b4b91865fb204b51a1f59bc7693c4c2f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-23T05:21:30Z |
| publishDate | 2019-02-01 |
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| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b4b91865fb204b51a1f59bc7693c4c2f2022-12-21T17:58:42ZengMDPI AGApplied Sciences2076-34172019-02-019481310.3390/app9040813app9040813Dynamic Phase Measuring Profilometry Based on Tricolor Binary Fringe Encoding Combined Time-Division MultiplexingGuangkai Fu0Yiping Cao1Yapin Wang2Yingying Wan3Lu Wang4Chengmeng Li5Department of Opto-electronics, Sichuan University, Chengdu 610064, ChinaDepartment of Opto-electronics, Sichuan University, Chengdu 610064, ChinaDepartment of Opto-electronics, Sichuan University, Chengdu 610064, ChinaDepartment of Opto-electronics, Sichuan University, Chengdu 610064, ChinaDepartment of Opto-electronics, Sichuan University, Chengdu 610064, ChinaDepartment of Opto-electronics, Sichuan University, Chengdu 610064, ChinaA dynamic phase measuring profilometry (PMP) based on tricolor binary fringe combined time-division multiplexing principle is proposed. Only one tricolor binary fringe combined by red (R), green (G), and blue (B) binary fringes with the same fringe width but without any color overlapping one another is needed and sent into the flash memory of a high-speed digital light projector (HDLP) in advance. A specialized time-division multiplexing timing sequence is designed to control the HDLP to project the tricolor binary fringe saved in the flash memory onto the measured dynamic object separately and sequentially at 234 fps, at the same time, the projected light source mode is set as monochrome mode which means that all the RGB LEDs remain lighting. Meanwhile, it also triggers a high frame rate monochrome camera synchronized with the HDLP to capture the corresponding deformed patterns in R, G and B channels. By filtering, the nearly unbroken phase-shifting sinusoidal deformed patterns for three-step PMP can be extracted from the captured deformed patterns. It is equivalent to the three-dimensional (3D) shape reconstruction of the measured dynamic object at 78 fps. Experimental results verify the feasibility and the validity of the proposed method. It is effective for measuring the dynamic object and can avoid the color cross-talk effectively.https://www.mdpi.com/2076-3417/9/4/813three-dimensional measurementphase measuring profilometrytricolor binary fringelow-pass filterdynamic object |
| spellingShingle | Guangkai Fu Yiping Cao Yapin Wang Yingying Wan Lu Wang Chengmeng Li Dynamic Phase Measuring Profilometry Based on Tricolor Binary Fringe Encoding Combined Time-Division Multiplexing Applied Sciences three-dimensional measurement phase measuring profilometry tricolor binary fringe low-pass filter dynamic object |
| title | Dynamic Phase Measuring Profilometry Based on Tricolor Binary Fringe Encoding Combined Time-Division Multiplexing |
| title_full | Dynamic Phase Measuring Profilometry Based on Tricolor Binary Fringe Encoding Combined Time-Division Multiplexing |
| title_fullStr | Dynamic Phase Measuring Profilometry Based on Tricolor Binary Fringe Encoding Combined Time-Division Multiplexing |
| title_full_unstemmed | Dynamic Phase Measuring Profilometry Based on Tricolor Binary Fringe Encoding Combined Time-Division Multiplexing |
| title_short | Dynamic Phase Measuring Profilometry Based on Tricolor Binary Fringe Encoding Combined Time-Division Multiplexing |
| title_sort | dynamic phase measuring profilometry based on tricolor binary fringe encoding combined time division multiplexing |
| topic | three-dimensional measurement phase measuring profilometry tricolor binary fringe low-pass filter dynamic object |
| url | https://www.mdpi.com/2076-3417/9/4/813 |
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