To provide a technique for improving accuracy in notification to alert an object person in an attention calling device.SOLUTION: An attention calling device comprises: an image acquisition section for acquiring an image which includes an object and does not have depth information; an object tracking section for calculating a time change rate of a feature quantity related to a position of the object with respect to a specified area in the image and an area rate of a circumscribed graphic of the object with respect to an area of the whole image through the use of time-series data including a plurality of images different in photographing time and information of a time when each one of the images is photographed; an approach prediction section for predicting an approach of the object to the specified area through the use of the time change rate of the feature amount and the area rate of the circumscribed graphic which are to be calculated by the object tracking section; and a notification section for notifying the object person of a fact that the object is approaching the specified area in response to a prediction result of the approach prediction section.SELECTED DRAWING: Figure 1

    【課題】 注意喚起装置において、対象者に注意を喚起するための報知の精度を向上する技術を提供する。【解決手段】 注意喚起装置は、物体を含み、深度情報を有していない画像を取得する画像取得部と、撮像時間が異なる複数の画像と、複数の画像のそれぞれが撮像された時間の情報と、を含む時系列データを用いて、画像における特定領域に対する物体の位置に関する特徴量の時間変化率と、画像全体の面積に対する物体の外接図形の面積比率と、を算出する物体追跡部と、物体追跡部によって算出される特徴量の時間変化率と、外接図形の面積比率と、を用いて、物体の特定領域への接近を予測する接近予測部と、接近予測部の予測結果に応じて、物体が特定領域に接近していることを対象者に報知する報知部と、を備える。【選択図】 図1


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    Title :

    ATTENTION CALLING DEVICE, ATTENTION CALLING METHOD, AND COMPUTER PROGRAM


    Additional title:

    注意喚起装置、注意喚起方法、および、コンピュータプログラム


    Contributors:

    Publication date :

    2024-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL




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