A New Gaze Estimation Method Based on Homography Transformation Derived from Geometric Relationship
In recent years, the gaze estimation system, as a new type of human-computer interaction technology, has received extensive attention. The gaze estimation model is one of the main research contents of the system. The quality of the model will directly affect the accuracy of the entire gaze estimatio...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/24/9079 |
| _version_ | 1827699744117358592 |
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| author | Kaiqing Luo Xuan Jia Hua Xiao Dongmei Liu Li Peng Jian Qiu Peng Han |
| author_facet | Kaiqing Luo Xuan Jia Hua Xiao Dongmei Liu Li Peng Jian Qiu Peng Han |
| author_sort | Kaiqing Luo |
| collection | DOAJ |
| description | In recent years, the gaze estimation system, as a new type of human-computer interaction technology, has received extensive attention. The gaze estimation model is one of the main research contents of the system. The quality of the model will directly affect the accuracy of the entire gaze estimation system. To achieve higher accuracy even with simple devices, this paper proposes an improved mapping equation model based on homography transformation. In the process of experiment, the model mainly uses the “Zhang Zhengyou calibration method” to obtain the internal and external parameters of the camera to correct the distortion of the camera, and uses the LM(Levenberg-Marquardt) algorithm to solve the unknown parameters contained in the mapping equation. After all the parameters of the equation are determined, the gaze point is calculated. Different comparative experiments are designed to verify the experimental accuracy and fitting effect of this mapping equation. The results show that the method can achieve high experimental accuracy, and the basic accuracy is kept within 0.6<inline-formula><math display="inline"><semantics><msup><mrow></mrow><mo>∘</mo></msup></semantics></math></inline-formula>. The overall trend shows that the mapping method based on homography transformation has higher experimental accuracy, better fitting effect and stronger stability. |
| first_indexed | 2024-03-10T13:56:57Z |
| format | Article |
| id | doaj.art-357edc9397664281bb1e47d18d51e4e7 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T13:56:57Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-357edc9397664281bb1e47d18d51e4e72023-11-21T01:31:05ZengMDPI AGApplied Sciences2076-34172020-12-011024907910.3390/app10249079A New Gaze Estimation Method Based on Homography Transformation Derived from Geometric RelationshipKaiqing Luo0Xuan Jia1Hua Xiao2Dongmei Liu3Li Peng4Jian Qiu5Peng Han6Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, ChinaIn recent years, the gaze estimation system, as a new type of human-computer interaction technology, has received extensive attention. The gaze estimation model is one of the main research contents of the system. The quality of the model will directly affect the accuracy of the entire gaze estimation system. To achieve higher accuracy even with simple devices, this paper proposes an improved mapping equation model based on homography transformation. In the process of experiment, the model mainly uses the “Zhang Zhengyou calibration method” to obtain the internal and external parameters of the camera to correct the distortion of the camera, and uses the LM(Levenberg-Marquardt) algorithm to solve the unknown parameters contained in the mapping equation. After all the parameters of the equation are determined, the gaze point is calculated. Different comparative experiments are designed to verify the experimental accuracy and fitting effect of this mapping equation. The results show that the method can achieve high experimental accuracy, and the basic accuracy is kept within 0.6<inline-formula><math display="inline"><semantics><msup><mrow></mrow><mo>∘</mo></msup></semantics></math></inline-formula>. The overall trend shows that the mapping method based on homography transformation has higher experimental accuracy, better fitting effect and stronger stability.https://www.mdpi.com/2076-3417/10/24/9079gaze estimationmapping equationhomography transformation |
| spellingShingle | Kaiqing Luo Xuan Jia Hua Xiao Dongmei Liu Li Peng Jian Qiu Peng Han A New Gaze Estimation Method Based on Homography Transformation Derived from Geometric Relationship Applied Sciences gaze estimation mapping equation homography transformation |
| title | A New Gaze Estimation Method Based on Homography Transformation Derived from Geometric Relationship |
| title_full | A New Gaze Estimation Method Based on Homography Transformation Derived from Geometric Relationship |
| title_fullStr | A New Gaze Estimation Method Based on Homography Transformation Derived from Geometric Relationship |
| title_full_unstemmed | A New Gaze Estimation Method Based on Homography Transformation Derived from Geometric Relationship |
| title_short | A New Gaze Estimation Method Based on Homography Transformation Derived from Geometric Relationship |
| title_sort | new gaze estimation method based on homography transformation derived from geometric relationship |
| topic | gaze estimation mapping equation homography transformation |
| url | https://www.mdpi.com/2076-3417/10/24/9079 |
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