Patent ID: 8248471
Filing Date: 2012-08-21
Classification: G06T

Abstract:
1. A calibrating apparatus for an on-board camera of a vehicle, comprising: an image acquiring section for acquiring a captured image captured by the camera including, within a field of view, calibration markers arranged at a plurality of predetermined differing positions; a calibration point specifying section for specifying each calibration point in each one of the calibration markers in the captured image; an automatic adjusting section for effecting automatic adjustment of a camera parameter of the on-board camera, with using the specified calibration point; a display controlling section for causing a displaying section to display a confirmation marker in the form of a graphic image in superposition with the captured image, the confirmation marker being configured to specify, in the captured image, a position of theoretical coordinate of the calibration point calculated with using the camera parameter at the time of completion of the automatic adjustment; an instruction input receiving section for receiving an instruction capable of moving the confirmation marker in a screen displayed at the displaying section; a manual adjusting section for effecting manual adjustment on the automatically adjusted camera parameter, based on a displacement amount of the theoretical coordinate of the calibration point corresponding to a movement amount of the confirmation marker; and a camera parameter setting section for setting an undetermined camera parameter which is the camera parameter at the time of completion of most recent adjustment by the automatic adjusting section and the manual adjusting section, as said camera parameter, in response to a determination instruction received by the instruction input receiving section.