To lighten deteriorating accuracy in detecting the status of a driver triggered by disturbance light.SOLUTION: A device to monitor drivers according to the present embodiment comprises: photographing means for photographing the face of a driver; radiating means for radiating a light to the face of the driver; light intensity control means for controlling light intensities radiated by the radiating means into a first light intensity and a second light intensity; difference image creating means for comparing the image information of one image in which the face of the driver radiated by the light of the first light intensity is photographed, with the image information of another image in which the face of the driver radiated by the light of the second light intensity is photographed, and creating an image with the difference based on difference information in luminance for the corresponding pixels; detecting means for detecting the eyes of the driver from the image with the difference created by the difference image creating means; and status detection means for detecting the status of the driver, based on the image of the eyes of the driver.SELECTED DRAWING: Figure 5
【課題】外乱光に起因するドライバの状態検出精度の低下を軽減する。【解決手段】本実施形態に係る運転者監視装置は、ドライバの顔を撮影する撮影手段と、ドライバの顔に光を照射する照射手段と、照射手段が照射する光量を第1の光量と第2の光量に制御する光量制御手段と、第1の光量の光が照射されたドライバの顔を撮影した一の画像の画像情報と、第2の光量の光が照射されたドライバの顔を撮影した他の画像の画像情報とを比較し、対応する画素の輝度の差分情報に基づいて差分画像を作成する差分画像作成手段と、差分画像作成手段により作成された差分画像から、ドライバの眼を検出する検出手段と、ドライバの眼の画像に基づいて、ドライバの状態を検出する状態検出手段と、を備える。【選択図】図5
DEVICE TO MONITOR DRIVERS, METHOD TO MONITOR DRIVERS, AND PROGRAM
運転者監視装置、運転者監視方法、及びプログラム
2019-03-22
Patent
Elektronische Ressource
Japanisch
IPC: | G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G06V / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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