| 摘要 |
In order to be able to support various landmarks and enable landmark recognition with low processing load and high reliability, a landmark recognition device comprises: a database in which landmark extraction information for specifying a region including a landmark in an image, and facing the landmark, and landmark determination condition information for determining landmark pattern information as the landmark are associated and stored; a division processing unit which sets a plurality of dividing lines in a direction parallel to the landmark from a direction facing the landmark in the region including the landmark in the image, and finds the distances between intersection points of the dividing lines and a landmark boundary; a pattern extraction processing unit which, according to the distances between the intersection points found for the respective plurality of dividing lines, obtains, as numerical value information, landmark pattern information indicating the feature of the pattern of the landmark; and a database comparison processing unit which compares the landmark pattern information extracted by the pattern extraction unit and the landmark determination condition information registered in the database, and specifies the kind of the landmark. |
