The moving body observation method acquires a plurality of time series images Fn captured at predetermined time intervals (step S10), and based on the estimated motion of the moving body P, the estimated position Ln of the moving body P in the time series image Fn. Is calculated (step S20), an image including the estimated position Ln of the moving body P is extracted as an extracted image Qn from a plurality of images in the time-series image Fn (step S30), and the reference points of the moving body P match. A template image QT is generated by superimposing a plurality of extracted images Qn as described above (step S40), and template matching using the template image QT is performed on at least one of the time-series images Fn to obtain a time-series image. This includes specifying the position LSn of the moving body P in each of the Fn (step S50).
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