{
  "$type": "site.standard.document",
  "description": "The method (10) involves identifying (12), in two-dimensional images acquired by a vision sensor, characteristic elements of images representing characteristic elements of an environment. A condensed measurement is calculated (14) based on characteristic elements of a triplet of images acquired at…",
  "path": "/patents/1004365",
  "publishedAt": "2012-03-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/005",
    "ASTRIUM SAS [FR]"
  ],
  "textContent": "The method (10) involves identifying (12), in two-dimensional images acquired by a vision sensor, characteristic elements of images representing characteristic elements of an environment. A condensed measurement is calculated (14) based on characteristic elements of a triplet of images acquired at different instants, where measurement is representative of characteristics of movement of a carrier during acquisition of the triplet images. The movement is estimated (16) by a navigation filter based on navigation measurements carried out by a navigation sensor and the condensed measurement. The navigation sensor is chosen from a Global Positioning System (GPS) receiver, accelerometer, odometer and gyroscope. The characteristic elements are characteristic points and/or characteristic objects or characteristic surfaces. An independent claim is also included for a calculation device for a carrier navigation system.",
  "title": "Method for estimating the movement of a carrier in relation to an environment and calculation device for a navigation system"
}