| 摘要 |
A fundus photographing apparatus includes an imaging unit configured to capture a fundus image of an subject's eye via a photographing optical system, an imaging magnification output unit configured to output imaging magnification of the photographing optical system, a fixation target presenting unit configured to make the subject's eye to look firmly at a fixation target, a fixation target presenting position detection unit configured to detect a presenting position of the fixation target presenting unit, a matching area determination unit configured to determine an area for matching a fundus image based on the imaging magnification and the presenting position of the fixation target, and a correlation value calculation unit configured to calculate a correlation value between a plurality of fundus images captured by the imaging unit based on the matching area determined by the matching area determination unit.
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