Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Patent
1996-03-01
1998-12-08
Jacques, Jacques H. Louis
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
701208, 340990, 340995, G06F16500
Patent
active
058483748
ABSTRACT:
A map processing apparatus may receive information on a road network map and a housing map. A coordinate transforming section may absorb difference in reduction scale and coordinate system as much as possible between the road network map and the housing map by means of geometric transformation. A corresponding candidate detecting section may detect a plurality of corresponding candidate points as candidates of corresponding points on the other arbitrary map to the road constituent points by collating road images near respective road constituent points on the road network map with road images of corresponding location on the other arbitrary map. A correspondence determining section may determines one corresponding candidate point based on derived similarities corresponding to respective corresponding candidate points by selecting one of the plurality of corresponding candidate points one by one with respect to respective road constituent points, and verifying similarity between shifted entire profile of road network and original entire profile of road network based on feature amounts representing intersecting angles of roads to be connected mutually on respective road constituent points while shifting respective road constituent points to locations of selected corresponding candidate points.
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Iwata Masahiko
Nunobiki Tadashi
Wakabayashi Kaoru
Yasuda Tsuneo
Arthur Gertrude
Jacques Jacques H. Louis
Nippon Telegraph and Telephone Corporation
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