This document describes methods to assign a collective state to a group of traffic signal devices (105, 110, 125) that are detected by multiple cameras (145). The states may be color states or other states. The system will process images (200) to identify states of each device (105, 110, 125) in the images (200). When the devices (105, 110, 125) exhibit more than one state, the system will determine an overall state for the group by generating a confidence score for each state and selecting the state having a confidence score that exceeds a threshold. The system will then use the selected state to assign an overall state to the group of traffic signal devices (105, 110, 125). The system may use the overall state to generate a signal causing the vehicle (130) to perform an action such as a motion control action, or output an audible or visual alert.


    Access

    Download


    Export, share and cite



    Title :

    HIERARCHICAL PROCESSING OF TRAFFIC SIGNAL FACE STATES


    Additional title:

    HIERARCHISCHE VERARBEITUNG VON VERKEHRSSIGNALOBERFLÄCHENZUSTÄNDEN
    TRAITEMENT HIÉRARCHIQUE DES ÉTATS DE FACE DES FEUX DE CIRCULATION


    Contributors:

    Publication date :

    2023-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06V



    Hierarchical processing of traffic signal face states

    MADAN SIDDHARTH / KWANT RICHARD L | European Patent Office | 2024

    Free access

    HIERARCHICAL PROCESSING OF TRAFFIC SIGNAL FACE STATES

    MADAN SIDDHARTH / KWANT RICHARD L | European Patent Office | 2023

    Free access


    Hierarchical Regional Control for Traffic Grid Signal Optimization

    Shu, Lingzhou / Wu, Jia / Li, Ziyan | IEEE | 2019


    A Hierarchical Control Model for Regional Traffic Signal Coordination

    Zhou, Huxing / Yang, Zhaosheng / Gao, Peng | ASCE | 2011