| CPC B60W 40/08 (2013.01) [G06V 20/597 (2022.01); G06V 40/161 (2022.01); B60W 2040/0818 (2013.01); B60W 2040/089 (2013.01); B60W 2420/403 (2013.01); B60W 2420/54 (2013.01); B60W 2540/21 (2020.02); B60W 2540/223 (2020.02)] | 7 Claims |
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1. A driver monitor comprising:
a processor configured to:
detect at least either one of a position and an orientation of a face of a driver as a posture of the driver of a vehicle from an image of an interior of the vehicle generated by a camera provided on the vehicle,
determine that a condition of the driver is abnormal based on a determination the detected posture of the driver satisfies an abnormality determining condition, wherein the abnormality determining condition specifies that a period during which the orientation or the position of the face of the driver's face has been outside a predetermined normal range is longer than a predetermined time threshold,
determine, based on a voice signal of the interior of the vehicle obtained by a microphone provided in the vehicle, whether a sound made by the driver corresponds to one or more sounds classified as an unusual sound,
based on a determination the sound made by the driver is classified as the unusual sound, modify a threshold associated with the abnormality determining condition such that a number of occurrences in which the detected posture of the driver satisfies the abnormality determining condition is increased, and
based on a determination that the unusual sound is not detected, decrease the predetermined normal range compared to the case that the unusual sound is detected or decrease the predetermined time threshold compared to the case that the unusual sound is detected.
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