Sensor Modeling and Calibration Method Based on Extinction Ratio Error for Camera-Based Polarization Navigation Sensor
The performance of camera-based polarization sensors largely depends on the estimated model parameters obtained through calibration. Limited by manufacturing processes, the low extinction ratio and inconsistency of the polarizer can reduce the measurement accuracy of the sensor. To account for the c...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/13/3779 |
| _version_ | 1797563226962001920 |
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| author | Haonan Ren Jian Yang Xin Liu Panpan Huang Lei Guo |
| author_facet | Haonan Ren Jian Yang Xin Liu Panpan Huang Lei Guo |
| author_sort | Haonan Ren |
| collection | DOAJ |
| description | The performance of camera-based polarization sensors largely depends on the estimated model parameters obtained through calibration. Limited by manufacturing processes, the low extinction ratio and inconsistency of the polarizer can reduce the measurement accuracy of the sensor. To account for the challenges, one extinction ratio coefficient was introduced into the calibration model to unify the light intensity of two orthogonal channels. Since the introduced extinction ratio coefficient is associated with degree of polarization (DOP), a new calibration method considering both azimuth of polarization (AOP) error and DOP error for the bionic camera-based polarization sensor was proposed to improve the accuracy of the calibration model parameter estimation. To evaluate the performance of the proposed camera-based polarization calibration model using the new calibration method, both indoor and outdoor calibration experiments were carried out. It was found that the new calibration method for the proposed calibration model could achieve desirable performance in terms of stability and robustness of the calculated AOP and DOP values. |
| first_indexed | 2024-03-10T18:39:32Z |
| format | Article |
| id | doaj.art-6c8099eaecd643ef99ddeba4ffe2a36f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T18:39:32Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-6c8099eaecd643ef99ddeba4ffe2a36f2023-11-20T05:56:13ZengMDPI AGSensors1424-82202020-07-012013377910.3390/s20133779Sensor Modeling and Calibration Method Based on Extinction Ratio Error for Camera-Based Polarization Navigation SensorHaonan Ren0Jian Yang1Xin Liu2Panpan Huang3Lei Guo4School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, ChinaSchool of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, ChinaSchool of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, ChinaHangzhou Innovation Institute, Beihang University, Hangzhou 310051, ChinaSchool of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, ChinaThe performance of camera-based polarization sensors largely depends on the estimated model parameters obtained through calibration. Limited by manufacturing processes, the low extinction ratio and inconsistency of the polarizer can reduce the measurement accuracy of the sensor. To account for the challenges, one extinction ratio coefficient was introduced into the calibration model to unify the light intensity of two orthogonal channels. Since the introduced extinction ratio coefficient is associated with degree of polarization (DOP), a new calibration method considering both azimuth of polarization (AOP) error and DOP error for the bionic camera-based polarization sensor was proposed to improve the accuracy of the calibration model parameter estimation. To evaluate the performance of the proposed camera-based polarization calibration model using the new calibration method, both indoor and outdoor calibration experiments were carried out. It was found that the new calibration method for the proposed calibration model could achieve desirable performance in terms of stability and robustness of the calculated AOP and DOP values.https://www.mdpi.com/1424-8220/20/13/3779polarization sensorinconsistency of the extinction ratiosensor modelcalibration modeldegree of polarization error |
| spellingShingle | Haonan Ren Jian Yang Xin Liu Panpan Huang Lei Guo Sensor Modeling and Calibration Method Based on Extinction Ratio Error for Camera-Based Polarization Navigation Sensor Sensors polarization sensor inconsistency of the extinction ratio sensor model calibration model degree of polarization error |
| title | Sensor Modeling and Calibration Method Based on Extinction Ratio Error for Camera-Based Polarization Navigation Sensor |
| title_full | Sensor Modeling and Calibration Method Based on Extinction Ratio Error for Camera-Based Polarization Navigation Sensor |
| title_fullStr | Sensor Modeling and Calibration Method Based on Extinction Ratio Error for Camera-Based Polarization Navigation Sensor |
| title_full_unstemmed | Sensor Modeling and Calibration Method Based on Extinction Ratio Error for Camera-Based Polarization Navigation Sensor |
| title_short | Sensor Modeling and Calibration Method Based on Extinction Ratio Error for Camera-Based Polarization Navigation Sensor |
| title_sort | sensor modeling and calibration method based on extinction ratio error for camera based polarization navigation sensor |
| topic | polarization sensor inconsistency of the extinction ratio sensor model calibration model degree of polarization error |
| url | https://www.mdpi.com/1424-8220/20/13/3779 |
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