| 摘要 |
PROBLEM TO BE SOLVED: To provide a calibration device which improves calibration accuracy of an imaging apparatus in a short time.SOLUTION: A calibration device includes: a calibration processing unit 231 serving as a similarity calculation part which calculates similarities of a plurality of captured images to respective master images, a classifying part which classifies the plurality of captured images into a plurality of groups, a calibration processing part which determines correction values for conversion between positions on a calibration board of feature points and positions on captured images on the basis of representative image groups each of which is extracted for each group, and a similarity difference calculation part which obtains a similarity difference from a maximally similar image in each group. If an error is determined to be larger than a prescribed value when maximum similarity images in each group are taken as a representative image group, the calibration processing unit 231 substitutes at least one captured image in the representative image group with a captured image having the smallest or smaller similarity difference to determine a correction value. The determination part performs determination based on the correction value after substitution. |
