2015 Fiscal Year Final Research Report
Assessment of Lecture Video Viewing by Gaze Estimation
| Project/Area Number |
15K12406
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Educational technology
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Research Collaborator |
HASUMI Kozue
Ito Izumi
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| Project Period (FY) |
2015-04-01 – 2016-03-31
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| Keywords | 視線推定 / 角膜反射 / E-ラーニング |
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| Outline of Final Research Achievements |
We developed a system to assess if a learner is actually looking at PC screen while studying by lecture video. We set a camera near the screen. From the image taken, ellipse is found as corneal limbus. From its shape we can estimate the posture of the cornea. Then the point where the light form the gazed object reflect on the cornea is detected as Gaze Reflection Point. Matching with the screen data identifies the gaze fixation point on the screen.
To improve the estimation accuracy, we introduced a calibration process by adjusting the parameters of the corneal sphere, and experiments were done with fixed-head and unfixed-head conditions. We have average accuracy of 5 degrees with fixed-head condition. That is
not high enough to identify the character the subject is looking at, but we can know that he/she is studying by looking at the screen.
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| Free Research Field |
教育工学
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