Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase Shift
Digital fringe projection measurement technology has been widely used in computer vision and optical three-dimensional (3D) measurement. Considering the phase error caused by the gamma distortion and nonlinear error, the active gamma precorrection and phase error compensation methods based on the th...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Optics |
| Online Access: | http://dx.doi.org/10.1155/2021/8315101 |
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| author | Wei Feng Shaojing Tang Shinan Xu Tong Qu Daxing Zhao |
| author_facet | Wei Feng Shaojing Tang Shinan Xu Tong Qu Daxing Zhao |
| author_sort | Wei Feng |
| collection | DOAJ |
| description | Digital fringe projection measurement technology has been widely used in computer vision and optical three-dimensional (3D) measurement. Considering the phase error caused by the gamma distortion and nonlinear error, the active gamma precorrection and phase error compensation methods based on the three-frequency with three-phase shifts are designed to reversely solve the initial phase and accurately compensate phase error. On the one hand, the gamma coefficient of the measurement system depends on precoding two groups of fringe sequences with different gamma coefficients to calculate the corresponded proportional coefficient of harmonic component. On the other hand, the phase error compensation method is designed to compensate the phase error and improve the accuracy and speed of phase calculation after gamma correction. Experiments show that the proposed precalibration gamma coefficient method can effectively reduce the sinusoidal error in nearly 80 percent which only needs fewer fringe patterns. Compared with the traditional three-frequency with four-phase shift method, the proposed method not only has higher phase accuracy and better noise resistance but also has good robustness and flexibility, which is not limited to the gamma distortion model. |
| format | Article |
| id | doaj-art-c01f638806654edb82e28dbc70836f5c |
| institution | Kabale University |
| issn | 1687-9384 1687-9392 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Optics |
| spelling | doaj-art-c01f638806654edb82e28dbc70836f5c2025-02-03T01:25:19ZengWileyInternational Journal of Optics1687-93841687-93922021-01-01202110.1155/2021/83151018315101Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase ShiftWei Feng0Shaojing Tang1Shinan Xu2Tong Qu3Daxing Zhao4Hubei Key Laboratory of Modern Manufacturing Quality Engineering, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory of Modern Manufacturing Quality Engineering, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory of Modern Manufacturing Quality Engineering, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory of Modern Manufacturing Quality Engineering, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory of Modern Manufacturing Quality Engineering, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaDigital fringe projection measurement technology has been widely used in computer vision and optical three-dimensional (3D) measurement. Considering the phase error caused by the gamma distortion and nonlinear error, the active gamma precorrection and phase error compensation methods based on the three-frequency with three-phase shifts are designed to reversely solve the initial phase and accurately compensate phase error. On the one hand, the gamma coefficient of the measurement system depends on precoding two groups of fringe sequences with different gamma coefficients to calculate the corresponded proportional coefficient of harmonic component. On the other hand, the phase error compensation method is designed to compensate the phase error and improve the accuracy and speed of phase calculation after gamma correction. Experiments show that the proposed precalibration gamma coefficient method can effectively reduce the sinusoidal error in nearly 80 percent which only needs fewer fringe patterns. Compared with the traditional three-frequency with four-phase shift method, the proposed method not only has higher phase accuracy and better noise resistance but also has good robustness and flexibility, which is not limited to the gamma distortion model.http://dx.doi.org/10.1155/2021/8315101 |
| spellingShingle | Wei Feng Shaojing Tang Shinan Xu Tong Qu Daxing Zhao Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase Shift International Journal of Optics |
| title | Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase Shift |
| title_full | Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase Shift |
| title_fullStr | Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase Shift |
| title_full_unstemmed | Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase Shift |
| title_short | Gamma Precorrection and Phase Error Compensation Methods Based on Three-Frequency with Three-Phase Shift |
| title_sort | gamma precorrection and phase error compensation methods based on three frequency with three phase shift |
| url | http://dx.doi.org/10.1155/2021/8315101 |
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