| 摘要 |
A coordinate calculating apparatus detects a coordinate point (detected coordinate point) of an area satisfying a predetermined condition in a captured image for each area. When a plurality of position coordinate points have been detected, the coordinate calculating apparatus sets a reference (a previous vector or an assumed vector) concerning at least one of a direction indicating two position coordinate points in the captured image and a length between the two position coordinate points. The coordinate calculating apparatus selects a combination of two position coordinate points closest to the set reference, as two object position coordinate points, from combinations of two position coordinate points from the plurality of position coordinate points.
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