{
  "$type": "site.standard.document",
  "description": "The procedure involves separating an image in two parts by a vertical line passing through a certain point, and determining luminosity of pixels of the line based on the height position of pixels on the line. A point of inflexion (1) of a curve representing the luminosity is calculated based on the…",
  "path": "/patents/1086967",
  "publishedAt": "2004-05-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60Q1/20",
    "VALEO VISION [FR]"
  ],
  "textContent": "The procedure involves separating an image in two parts by a vertical line passing through a certain point, and determining luminosity of pixels of the line based on the height position of pixels on the line. A point of inflexion (1) of a curve representing the luminosity is calculated based on the position. Visibility distance (D) for a vehicle driver is determined based on the position of point of inflection on the image. Independent claims are also included for the following: (a) a device implementing visibility distance determining method; and (b) a command/control system of a headlight or a vehicle fog light with a device implementing visibility distance determining method, with the device controlling intensity or on/off switching of lamps according to level of visibility.",
  "title": "Method and apparatus for determining the distance of visibility of the driver of a vehicle"
}