To provide a traffic line estimation device capable of accurately estimating a traffic line of a vehicle using a small number of types of markers.SOLUTION: A traffic line estimation device for estimating a traffic line of a vehicle on the basis of an observation result of a marker observed from a vehicle traveling in a predetermined area where a plurality of markers are installed, includes: a probability prediction unit for predicting a probability that the vehicle exists at each marker position at a second time point after a first time point on the basis of a probability that the vehicle exists at a marker position associated with each marker at the first time point; a probability estimation unit for estimating a probability that the vehicle observes a marker indicated by an observation result at each marker position on the basis of an observation result at the second time point; an update unit for updating a probability that the vehicle exists at each marker position at the second time point on the basis of a prediction result of the probability prediction unit and an estimation result of the probability estimation unit; and a traffic line estimation unit for estimating a traffic line of the vehicle on the basis of time series information of the probability after update by the update unit.SELECTED DRAWING: Figure 8

    【課題】少ない種類のマーカを用いて車両の動線を正確に推定することのできる動線推定装置を提供する。【解決手段】複数のマーカが設置された所定エリア内を走行する車両から観測したマーカの観測結果に基づいて、車両の動線を推定する動線推定装置は、第1時点において車両が各マーカに係るマーカ位置に存在する確率に基づいて、第1時点よりも後の第2時点において車両が各マーカ位置に存在する確率を予測する確率予測部と、第2時点における観測結果に基づいて、各マーカ位置において、車両が、観測結果が示すマーカを観測する確率を推定する確率推定部と、確率予測部の予測結果および確率推定部の推定結果に基づいて、第2時点において車両が各マーカ位置に存在する確率を更新する更新部と、更新部による更新後の確率の時系列情報に基づいて、車両の動線を推定する動線推定部と、を備える。【選択図】図8


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    Title :

    TRAFFIC LINE ESTIMATION APPARATUS, TRAFFIC LINE ESTIMATION METHOD, AND COMPUTER PROGRAM


    Additional title:

    動線推定装置、動線推定方法およびコンピュータプログラム


    Contributors:

    Publication date :

    2019-10-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS





    TRAFFIC ESTIMATION DEVICE, TRAFFIC ESTIMATION METHOD, AND TRAFFIC ESTIMATION PROGRAM

    TAKAGI MASARU / KOMIYA KENJI / NAKADA RYOTA | European Patent Office | 2024

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