Calibration system, target apparatus and calibration method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsShusaku Okamoto, Masamichi Nakagawa, Atsushi Morimura
Life of this patent
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Abstract
Simple calibration of a camera mounted on a mobile object is implemented. With a joint means, a target apparatus for calibration is physically fixed to the mobile object having a camera mounted thereon. The positional relation between the vehicle and the target apparatus is finely adjusted while visually confirming a target point on the vehicle through a scope means.
Claims10
A calibration system, comprising:
- a mobile object having a camera mounted thereon;
- a target apparatus for calibrating the camera;
- and
- a positioning means provided to at least one of the mobile object ant the target apparatus for fixing a positional relation between the mobile object and the target apparatus to a prescribed relation.
A calibration system, comprising:
- a mobile object having a camera mounted thereon;
- a target apparatus for calibrating the camera;
- and
- a positional-relation estimating means provided to at least one of the mobile object ant the target apparatus for obtaining a positional relation between the mobile object and the target apparatus.
A target apparatus for calibrating a camera mounted on a mobile object, comprising a positioning means for fixing a positional relation between the mobile object and the target apparatus to a prescribed relation.
A target apparatus for calibrating a camera mounted on a mobile object, comprising a positional-relation estimating means for obtaining a positional relation between the mobile object and the target apparatus.
A method for calibrating a camera mounted on a mobile object, comprising the steps of:
- preparing a target apparatus for calibration around the mobile object;
- fixing a position of the target apparatus such that the target apparatus has a prescribed positional relation with the mobile object, by using a positioning means provided to at least one of the mobile object and the target apparatus;
- and
- capturing a feature point of the target apparatus with the camera, wherein the camera is calibrated based on a relation between image coordinates of the feature point and real-world coordinates thereof.
A method for calibrating a camera mounted on a mobile object, comprising the steps of:
- preparing a target apparatus for calibration around the mobile object;
- obtaining a positional relation between the target apparatus and the mobile object by using a positional-relation estimating means provided to at least one of the mobile object and the target apparatus;
- and
- capturing a feature point of the target apparatus with the camera, wherein
- the camera is calibrated based on image coordinates of the feature point, real-world coordinates of the feature point based on the target apparatus, and the obtained positional relation between the target apparatus and the mobile object.
Dependencies are inferred from the claim text.