An unobstrusive measurement method of the horizontal gaze angle

Mühlberger, A; Reiss, JA

doi:10.3758/BF03207800

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An unobstrusive measurement method of the horizontal gaze angle

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https://link.springer.com/content/pdf/10.3758/BF03207800.pdf
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Citation

Mühlberger, A., & Reiss, J. (2000). An unobstrusive measurement method of the horizontal gaze angle. Behavior Research Methods, Instruments, & Computers, 32(2), 312-321. doi:10.3758/BF03207800.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-E589-9

Abstract

A horizontal gaze angle measurement device is introduced. By combining a photoelectric viewing device to measure the horizontal eye angle with a similar head angle measurement device, it is possible to measure the horizontal gaze angle without using a headrest. After discussion of circuit diagrams and measurement principles, it is shown that the measurements made with the device yield a reasonable precision. The mean absolute measurement error is below 1°. This inexpensive and unobtrusive device covers a visual field of about 20° and can be used in parallel with many tasks. Further, data on the successful application of the device in a driving simulation setting are discussed.