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1. (WO2017038134) LANDMARK RECOGNITION DEVICE AND RECOGNITION METHOD

Pub. No.:    WO/2017/038134    International Application No.:    PCT/JP2016/059797
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Mar 29 01:59:59 CEST 2016
IPC: G06T 7/60
G06T 1/00
G08G 1/09
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: KANEKO Alex Masuo
金子 アレックス益男
YAMAMOTO Kenjiro
山本 健次郎
Title: LANDMARK RECOGNITION DEVICE AND RECOGNITION METHOD
Abstract:
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.