| http://www.w3.org/ns/prov#value | - The ratio between the width and height of the facial region is calculated in step S113 with respect to the range of the facial region obtained in step S112, and if it is clearly determined based on that ratio that the extracted region is not a facial region (step S114), it is determined that the region of interest is other than a facial region, and a parabola is searched again.
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