发明名称 |
STATE DETERMINATION DEVICE, EYE CLOSURE DETERMINATION DEVICE, STATE DETERMINATION METHOD, AND STORAGE MEDIUM |
摘要 |
A state determination device includes a calculator that receives multiple eye region images captured at different timings in a time interval from when a person opening eyes closes the eyes to when the person opens the eyes next and calculates a luminance value relating to multiple pixels included in each of the eye region images and a determiner, wherein the determiner calculates a time interval from a first time point when the luminance value relating to the pixels reaches a predetermined first luminance value for the first time to a second time point when the luminance value relating to the pixels reaches a second luminance value after the first time point; if a time interval from the first time point to the second time point is a first time interval, the determiner determines that the person is in a first state; if the time interval from the first time point to the second time point is a second time interval which is shorter than the first time interval, the determiner determines that the person is in a second state which differs from the first state; and the determiner outputs a determination result. |
申请公布号 |
US2017091955(A1) |
申请公布日期 |
2017.03.30 |
申请号 |
US201615243823 |
申请日期 |
2016.08.22 |
申请人 |
Panasonic Intellectual Property Management Co., Ltd. |
发明人 |
NAKAI WATARU |
分类号 |
G06T7/40 |
主分类号 |
G06T7/40 |
代理机构 |
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代理人 |
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主权项 |
1. A state determination device comprising:
a calculator which, in operation, receives a plurality of eye region images captured at different timings in a time interval from when a person opening eyes closes the eyes to when the person opens the eyes next and calculates a luminance value relating to a plurality of pixels included in each of the eye region images; and a determiner which, in operation, wherein the determiner calculates a time interval from a first time point when the luminance value relating to the pixels reaches a predetermined first luminance value for the first time to a second time point when the luminance value relating to the pixels reaches a second luminance value after the first time point; if a time interval from the first time point to the second time point is a first time interval, the determiner determines that the person is in a first state; if the time interval from the first time point to the second time point is a second time interval which is shorter than the first time interval, the determiner determines that the person is in a second state which differs from the first state; and the determiner outputs a determination result. |
地址 |
Osaka JP |