Free state determination at a high precision is made by using a simpler mechanism. A vehicle position detection device is configured to: store conditional probability information which associates each of values to be taken in vehicle information on a state of an own vehicle, a matching conditional probability that the value occurs in a matching state, and a free conditional probability that the value occurs in a free state; use the conditional probability information to acquire the matching conditional probability and the free conditional probability corresponding to the acquired value of the vehicle information; calculate a probability index in the matching state and a probability index in the free state based on the conditional probabilities; and determine which state is to be selected based on the probability index in the matching state and the probability index in the free state.
Vehicle position detection device and program
2017-01-31
Patent
Electronic Resource
English
IPC: | G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G09B Unterrichts- oder Vorführungsgeräte , EDUCATIONAL OR DEMONSTRATION APPLIANCES |
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