CALIBRATION DEVICE, CALIBRATION CHART, CHART PATTERN GENERATION DEVICE, AND CALIBRATION METHOD

摘要

This calibration device performs calibration using a captured image of a chart 200 that comprises a plurality of flat surfaces forming a predetermined angle θ therebetween. An image capture device 12 simultaneously captures an image of a chart pattern formed on each flat surface of the chart 200. The chart pattern formed on each flat surface of the chart 200 increases in size with distance from the image capture plane, as shown in (a), so that feature points of patterns are uniformly distributed within the captured image, as shown in (b).