{
  "$type": "site.standard.document",
  "description": "A method, a system, and a computer-readable medium for tracking a position and orientation of a pedestrian. The system tracks at least one of a head position or a head orientation of the pedestrian. The system tracks at least one of a foot position or a foot orientation of the pedestrian. The…",
  "path": "/patents/1399434",
  "publishedAt": "2025-08-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/005",
    "THALES DEFENSE & SECURITY INC [US]"
  ],
  "textContent": "A method, a system, and a computer-readable medium for tracking a position and orientation of a pedestrian. The system tracks at least one of a head position or a head orientation of the pedestrian. The system tracks at least one of a foot position or a foot orientation of the pedestrian. The system determines a first heading or position uncertainty associated with the at least one of the head position or the head orientation of the pedestrian. The system determines a second heading or position uncertainty associated with the at least one of the foot position or the foot orientation of the pedestrian. Moreover, the system determines which of the first heading or position uncertainty or the second heading or position uncertainty is smaller. The system transfers the first heading or position uncertainty to the foot mounted tracking device, or transfers the second heading or position uncertainty to the head mounted tracking device.",
  "title": "ROBUST VISION-INERTIAL PEDESTRIAN TRACKING WITH HEADING AUTO-ALIGNMENT"
}