| 摘要 |
A person tracking method capable of obtaining information representing a correspondence between a shot image and a three-dimensional real space, without actual measurement, thereby enabling lighter processing is provided. The method includes: calculating a statistically average correspondence between a size of person's head and a position representing a height of the head on the shot image, the camera looking down a measured space and taking the measured space; detecting a position and a size of a head on each of measured frame images; calculating, based on positions and sizes of heads on plural past measured frame images and the correspondence, a movement feature quantity representing a possibility that a head on a current measured frame image is of the same person on the past measured frame images; and determining that the head on the current measured frame image is of the same person on the past measured frame images.
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