Line-of-sight detection device and line-of-sight detection method
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United States of America Patent
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Dec 11, 2018
Grant Date -
Feb 15, 2018
app pub date -
Jul 17, 2017
filing date -
Aug 10, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
When a plurality of candidate corneal reflections are extracted from an image of a person, a line-of-sight detection device calculates a movement vector of a reflection location on the basis of the candidate corneal reflection extracted from a first image and a second image, calculates a movement vector of a reference point on the person on the basis of the reference point extracted from the first image and the second image, identifies a corneal reflection from among the plurality of candidate corneal reflections on the basis of the movement vector of the reflection location and the movement vector of the reference point so as to identify a location of the corneal reflection, and extracts a location of a pupil from the image, and calculates a line of sight of the person on the basis of the identified location of the corneal reflection and the extracted location of the pupil.
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