{
  "$type": "site.standard.document",
  "description": "For use in calibration of an onboard camera, there are provided a calibration index free of erroneous detection and a method of calibrating an onboard camera using such calibration index. The calibration index for use in onboard camera calibration includes a curved graphic formed of a curved line…",
  "path": "/patents/1005434",
  "publishedAt": "2012-02-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R11/04",
    "AISIN SEIKI [JP]"
  ],
  "textContent": "For use in calibration of an onboard camera, there are provided a calibration index free of erroneous detection and a method of calibrating an onboard camera using such calibration index. The calibration index for use in onboard camera calibration includes a curved graphic formed of a curved line surrounding a predetermined region and a linear graphic comprising at least two straight lines forming an intersection point within the region surrounded by the curved graphic, the curved graphic and the linear graphic being formed in a same plane. A plurality of segments separated by the curved line forming the curved graphic and the straight lines forming the linear graphic are colored in a checkered pattern.",
  "title": "CALIBRATION INDICATOR USED FOR CALIBRATION OF ONBOARD CAMERA, CALIBRATION METHOD OF ONBOARD CAMERA USING CALIBRATION INDICATOR, AND PROGRAM FOR CALIBRATION DEVICE OF ONBOARD CAMERA USING CALIBRATION INDICATOR"
}