{
  "$type": "site.standard.document",
  "description": "The present invention relates to an image forming apparatus comprising: a control point measuring section for measuring a centrally projected image having a plurality of control points, and obtaining the image coordinates for said control points; a coordinate transformation parameter calculating…",
  "path": "/patents/1074715",
  "publishedAt": "2005-08-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C11/06",
    "TOPCON CORP [JP]"
  ],
  "textContent": "The present invention relates to an image forming apparatus comprising: a control point measuring section for measuring a centrally projected image having a plurality of control points, and obtaining the image coordinates for said control points; a coordinate transformation parameter calculating section for obtaining a transformation parameter for correlating, based on said image coordinates for said control points obtained by said control point measuring section and the three-dimensional coordinates for actually measured control points, said image coordinates with said three-dimensional coordinates; and an ortho-image forming section for forming an orthogonally projected image from said centrally projected image based on said transformation parameter obtained by said coordinate transformation parameter calculating section; characterized in that an ortho-image correcting section is provided for correcting the image coordinates obtained by said ortho-image forming section based on the three-dimensional coordinates for actually measured, additional points, and then performing correction of said orthogonally projected image.",
  "title": "Image forming apparatus"
}