| 摘要 |
A measurement device has a light source, an imaging device, and a distance measuring section The distance measuring section obtains a distance between the imaging device and a person based on a presence of occurrence of a red-eye effect at an eye of the person in an image in which the person irradiated with an illumination light emitted from the light source is imaged by the imaging device, and a distance between an optical axis of the imaging device and the light source.
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