| 摘要 |
There are provided a feature amount acquisition unit acquiring feature amounts of focused states of a first image and a second image which are captured in time-series; a calculation unit dividing each of the first image and the second image into a plurality of image areas and determining a frequency distribution of a feature amount for each of the image areas; and a motion detection unit calculating a difference between the frequency distribution of the first image and that of the second image for each of the image areas and detecting a motion of a subject based on a frequency distribution of the difference for each of the image areas. |
