{
  "$type": "site.standard.document",
  "description": "A system and method for determining a location of a client device is described herein. In particular, a client device receives images captured by a camera at the client device. The client device identifies features in the images. The features may be line junctions, lines, curves, or any other…",
  "path": "/patents/1293814",
  "publishedAt": "2021-06-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3867",
    "Niantic, Inc."
  ],
  "textContent": "A system and method for determining a location of a client device is described herein. In particular, a client device receives images captured by a camera at the client device. The client device identifies features in the images. The features may be line junctions, lines, curves, or any other features found in images. The client device retrieves a 3D map of the environment from the map database and compares the identified features to the 3D map of the environment, which includes map features such as map line junctions, map lines, map curves, and the like. The client device identifies a correspondence between the features identified from the images and the map features and determines a location of the client device in the real world based on the correspondence. The client device may display visual data representing a location in a virtual world corresponding to the location in the real world.",
  "title": "LOCATION DETERMINATION AND MAPPING WITH 3D LINE JUNCTIONS"
}