Patent ID: 7873268

Claim:
A focus adjusting apparatus that adjusts a focus of a camera imaging a moving object, the focus adjusting apparatus comprising: a calculating unit that calculates a first out-of-focus level of a portion corresponding to the moving object within a first region of an image picked up by the camera, and calculates a second out-of-focus level of a portion corresponding to the moving object within a second region of an image picked up by the camera; and a focus adjusting unit that shifts the focus of the camera in a direction in which the camera is focused onto the portion corresponding to the moving object within the first region when the first out-of-focus level calculated by the calculating unit is larger than the second out-of-focus level calculated by the calculating unit, and that shifts the focus of the camera in a direction in which the camera is focused onto the portion corresponding to the moving object within the second region when the second out-of-focus level is larger than the first out-of-focus level.