| 摘要 |
A face area detector detects a face area of a photographic subject in image data. A particular section detector detects a particular section in the face area. A motion detector extracts a difference between the image data of the particular section in a current frame of the image data and the image data of the particular section in the previous frame of the image data. A face condition determiner determines a face condition of the photographic subject based on the motion information of the particular section.
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