{
  "$type": "site.standard.document",
  "description": "An operation device includes: a first disparity search unit that uses a standard image that is an image obtained by capturing with a first camera and a reference image that is an image obtained by capturing with a second camera to calculate a disparity in the standard image in a unit of a first…",
  "path": "/patents/1414366",
  "publishedAt": "2024-01-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C3/14",
    "HITACHI ASTEMO LTD [JP]"
  ],
  "textContent": "An operation device includes: a first disparity search unit that uses a standard image that is an image obtained by capturing with a first camera and a reference image that is an image obtained by capturing with a second camera to calculate a disparity in the standard image in a unit of a first block and generate a temporary distance image; a disparity invalidity determination unit that identifies an invalid region for which disparity calculation from the temporary distance image has failed; a condition generation unit that generates a search condition including disparity candidates of the invalid region using the temporary distance image; and a second disparity search unit that uses the standard image, the reference image, and the search condition to calculate a disparity of the invalid region in a unit of a second block having a size equal to or smaller than a size of the first block.",
  "title": "ARITHMETIC UNIT AND PARALLAX CALCULATION METHOD"
}