The invention discloses a traffic scene sound classification method and system based on a deep learning technology. The method comprises the steps: extracting a signal time-frequency feature from a sound signal after obtaining and screening the sound signal in real time through a sound collection device, and carrying out the analysis through a trained deep learning model, and obtaining a prediction classification matrix; and converting to obtain a confidence coefficient matrix comprising all sound event types appearing in the sound signal and corresponding time intervals of the sound event types. According to the invention, the sound signals are analyzed by using the deep learning training model, so that the types of the sound events and the occurrence time of the sound events can be accurately obtained for analysis, the accuracy and the capture rate of a monitoring snapshot system related to sound discrimination are remarkably improved, and the method has higher accuracy in classifying the sound of the traffic scene, has the capability of classifying multiple types of sound, and effectively reduces the false alarm of a monitoring and recognition system.

    一种基于深度学习技术的交通场景声音分类方法及系统,通过声音采集装置实时获取并筛选声音信号后,从声音信号中提取信号时频特征并使用经训练的深度学习模型进行分析得到预测分类矩阵;经转换得到包括声音信号中所出现的所有声音事件类别及其对应发生的时间区间的置信度矩阵。本发明利用深度学习训练模型分析声音信号,可准确地获取声音事件类别和各类声音事件发生的时间进行分析,显著提高与声音判别有关的监控抓拍系统的准确率及捕获率,对交通场景的声音进行分类具有更高的准确率、具备多类别声音分类的能力,有效的减少监控识别系统的误报。


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    Titel :

    Traffic scene sound classification method and system based on deep learning


    Weitere Titelangaben:

    基于深度学习交通场景声音分类的方法及系统


    Beteiligte:
    QIU GUOQING (Autor:in) / LI HONGBIN (Autor:in) / ZHANG WENBIN (Autor:in) / LIU XUN (Autor:in)

    Erscheinungsdatum :

    2021-09-07


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G10L Analyse oder Synthese von Sprache , SPEECH ANALYSIS OR SYNTHESIS / G06K Erkennen von Daten , RECOGNITION OF DATA / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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