To improve yawn detection accuracy.SOLUTION: A yawn detection device 1 includes: an imaging device 10 for imaging a face of a driver of a vehicle 80 and generating a face image of the driver; an opening degree detection section 31 for detecting a waveform of an opening degree of a driver based on time-series face images generated by the imaging device within a predetermined time; an eye opening degree detection section 32 for detecting a waveform of an eye opening degree of a driver based on the time-series face images; and a yawn determination section 33 for determining whether a driver is yawning. The yawn determination section determines whether a driver is yawning based on a waveform of the opening degree detected by the opening degree detection section and a waveform of the eye opening degree detected by the eye opening degree detection section.SELECTED DRAWING: Figure 5
【課題】あくびの検出精度を高める。【解決手段】あくび検出装置1は、車両80のドライバの顔を撮影してドライバの顔画像を生成する撮像装置10と、所定時間内に撮像装置によって生成された時系列の顔画像に基づいてドライバの開口度の波形を検出する開口度検出部31と、時系列の顔画像に基づいてドライバの開眼度の波形を検出する開眼度検出部32と、ドライバがあくびをしているか否かを判定するあくび判定部33とを備える。あくび判定部は、開口度検出部によって検出された開口度の波形と、開眼度検出部によって検出された開眼度の波形とに基づいて、ドライバがあくびをしているか否かを判定する。【選択図】図5
YAWN DETECTION DEVICE
あくび検出装置
2021-09-30
Patent
Elektronische Ressource
Japanisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / A61B DIAGNOSIS , Diagnostik / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL |
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