A vehicle direction identification device includes: a frequency analysis unit which analyzes phase of the surrounding sound in each analysis section specified by predetermined frequency regions and time intervals; a sound source direction identification unit which identifies a sound source direction indicating a direction of a sound included in the vehicle sound for each analysis section; a reflection information storage unit which stores (i) state information relating to rates of occurrence each of which are a count of the analysis sections of a corresponding one of the sound source directions, and (ii) reflection patterns each of which includes an estimated vehicle direction which is a vehicle direction associated with a set of the state information; and a vehicle direction identification unit which identifies a vehicle direction by checking the rates of occurrence obtained from an identification result by the sound source direction identification unit against one of the reflection patterns.


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    Title :

    Vehicle direction identification device, vehicle direction identification method and program therefor


    Contributors:

    Publication date :

    2015-09-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H04B TRANSMISSION , Übertragung / G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler



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