{
  "$type": "site.standard.document",
  "description": "The present invention relates to a method for calibrating an altitude sensing stereo vision device () of an unmanned aerial vehicle (), wherein the method includes: arranging the unmanned aerial vehicle to take off from ground (G) and ascend; deriving at least one first altitude value (-) from the…",
  "path": "/patents/1316887",
  "publishedAt": "2022-05-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C25/00",
    "Everdrone AB"
  ],
  "textContent": "The present invention relates to a method for calibrating an altitude sensing stereo vision device () of an unmanned aerial vehicle (), wherein the method includes: arranging the unmanned aerial vehicle to take off from ground (G) and ascend; deriving at least one first altitude value (-) from the stereo vision device and obtaining at least one corresponding second altitude value (-) from another device () of the unmanned aerial vehicle during the ascent () of the unmanned aerial vehicle; recording the derived at least one first altitude value and the obtained at least one corresponding second altitude value as calibration data; deriving an additional first altitude value from the stereo vision device while the unmanned aerial vehicle flies a route; and adjusting the derived additional first altitude value based on the recorded calibration data.",
  "title": "METHOD FOR CALIBRATING AN ALTITUDE SENSING STEREO VISION DEVICE OF A UAV"
}