{
  "$type": "site.standard.document",
  "description": "The present invention realizes a moving-object height determining apparatus capable of easily and favorably determining a height of a moving-object using a single image-capturing device. In a two-dimensional image G captured by one camera 1, a height calculation unit 24 carries out the following…",
  "path": "/patents/1068799",
  "publishedAt": "2006-03-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C11/00",
    "GIKEN TRASTEM CO LTD [JP]"
  ],
  "textContent": "The present invention realizes a moving-object height determining apparatus capable of easily and favorably determining a height of a moving-object using a single image-capturing device. In a two-dimensional image G captured by one camera 1, a height calculation unit 24 carries out the following processing. The height calculation unit 24 regards one of representative points P1 and P2 as a standard point A having a standard height, and regards the other representative point as an assumption point B having a virtual height. The height calculation unit 24 corrects the standard point A to a comparative point a corresponding to the virtual height along a vertical axis T of a moving-object M1. The height calculation unit 24 obtains a fluctuation amount q of a distance d between two points in a real space between the comparative point a and the assumption point B during a period of a plurality of clocks. The height calculation unit 24 sets three or more height set values of the assumption point B and obtains the fluctuation q for each of the height set values. A relation between the standard point A and the assumption point B is reversed for the two representative points P1 and P2 to obtain the fluctuation q. When the fluctuation amount q is the smallest and a rate of the standard point to the moving amount falls within a constant value, the assumption height of the height set value is obtained as a relative height of a moving-object M2 of the assumption point B with respect to a moving-object M1 of the standard point A.",
  "title": "Moving-object height determining apparatus"
}