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US 11,893,806 B2Granted
Looking away determination device, looking away determination system, looking away determination method, and storage medium
AssigneeNEC Corporation
InventorsKazuki Inagaki, Nana Sakuma
Life of this patent
Estimating the term…
Abstract
A looking away determination device includes: a determination unit that determines that a driver is in a looking away state when a proportion of an image in which a face of the driver is not detected with respect to a plurality of images obtained by imaging the driver is equal to or greater than a first predetermined value, the first predetermined value being determined based on driving state information that indicates a state during driving by the driver.
Claims20
A looking away determination device comprising:
- a memory configured to store instructions;
- and
- a processor configured to execute the instructions to:
- determine, when a face of a driver is not detected from a first image captured last among a plurality of images, that the driver is in a looking away state when a number of images in which the face of the driver does not appear with respect to a plurality of images obtained by imaging the driver is equal to or greater than a first value, the first value being determined based on driving state information that indicates a state during driving by the drivel;
- detect a facial direction of the driver from the first image when the face of the driver is detected from the first image;
- determine whether the detected facial direction is within a facial direction condition range;
- detect a line-of-sight direction of the driver from the first image when the detected facial direction is determined to be within the facial direction condition range;
- and
- determine whether the detected line-of-sight direction is within a line-of-sight direction condition range.
6 more elements
A looking away determination method comprising:
- determining, when a face of a driver is not detected from a first image captured last among a plurality of images, that the driver is in a looking away state when a number of images in which the face of the driver does not appear with respect to a plurality of images obtained by imaging the driver is equal to or greater than a first value, the first value being determined based on driving state information that indicates a state during driving by the drivel;
- detecting a facial direction of the driver from the first image when the face of the driver is detected from the first image;
- determining whether the detected facial direction is within a facial direction condition range;
- detecting a line-of-sight direction of the driver from the first image when the detected facial direction is determined to be within the facial direction condition range;
- and
- determining whether the detected line-of-sight direction is within a line-of-sight direction condition range.
3 more elements
A non-transitory computer-readable storage medium that stores a program that causes a computer to execute:
- determining, when a face of a driver is not detected from a first image captured last among a plurality of images, that the driver is in a looking away state when a number of images in which the face of the driver does not appear with respect to a plurality of images obtained by imaging the driver is equal to or greater than a first value, the first value being determined based on driving state information that indicates a state during driving by the drive;
- detecting a facial direction of the driver from the first image when the face of the driver is detected from the first image;
- determining whether the detected facial direction is within a facial direction condition range;
- detecting a line-of-sight direction of the driver from the first image when the detected facial direction is determined to be within the facial direction condition range;
- and
- determining whether the detected line-of-sight direction is within a line-of-sight direction condition range.
3 more elements
Dependencies are inferred from the claim text.