Eyelid-detection device, eyelid-detection method, and recording medium

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United States of America Patent

PATENT NO 8824739
APP PUB NO 20140037144A1
SERIAL NO

14111394

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A lower eyelid search window (W2) matching the pixels constituting the edge of a lower eyelid is transformed so that the lower eyelid search window (W2) fits the pixels constituting the edge of the lower eyelid. Then, the position of the centroid of the transformed lower eyelid search window (W2) is set as the lower eyelid reference position. Consequently, the lower eyelid reference position can be accurately set even if the lower eyelid search window (W2) is different in shape from the edge of the lower eyelid. Then, it is possible to accurately detect the degree of opening of the eyes of a driver and thus accurately determine the degree of wakefulness of the driver.

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Patent Owner(s)

  • AISIN SEIKI KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiramaki, Takashi Nagoya, JP 26 275

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