Abnormality determination apparatus

1. An abnormality determination apparatus mounted on a vehicle, comprising:

an identification unit configured to identify a person in a captured image acquired from a camera that captures an image of a range including a driver seat of the vehicle;

a person determination unit configured to determine whether two or more persons are present in an operable range set as a range in which a steering wheel of the vehicle is enabled to be operated based on an identification result by the identification unit; and

an abnormality processing unit configured to execute an abnormality process assuming that the driver is in an abnormal state in response to the person determination unit determining that two or more persons are present in the operable range and to execute the abnormality process based on (i) a disappearing position where a person disappears from the operable range and (ii) an appearing position where a person appears in the operable range.

2. The abnormality determination apparatus according to claim 1 , wherein:

the identification unit is further configured to recognize a human face in the captured image;

the person determination unit is configured to determine whether a person other than the driver is present in the operable range based on the recognition result by the identification unit; and

the abnormality processing unit is configured to execute the abnormality process in response to the person determination unit determining that the person other than the driver is present in the operable range.

3. The abnormality determination apparatus according to claim 1 , further comprising:

a presence determination unit configured to determine whether a person is present in the operable range based on the identification result by the identification unit,

wherein:

each of the disappearing position and the appearing position is classified into one of two positions of a left position and a right position with respect to the driver seat; and

in cases that a person appears in the operable range after the presence determination unit determines that no person is present in the operable range, the abnormality processing unit is configured

to execute the abnormality process in response to the appearing position and the immediately preceding disappearing position being different from each other, and

not to execute the abnormality process in response to the appearing position and the immediately preceding disappearing position being same.

4. The abnormality determination apparatus according to claim 3 , wherein:

in response to a state in which no person appears in the operable range continuing for a predetermined period of time or longer after the presence determination unit determines that no person is present in the operable range, the abnormality process is executed by the abnormality processing unit.

5. The abnormality determination apparatus according to claim 1 , further comprising:

a controller circuit coupled via a communication link with the camera, the controller circuit being configured to implement the identification unit, the person determination unit, and the abnormality processing unit.

6. An abnormality determination apparatus mounted on a vehicle, comprising:

an identification unit configured to identify a person in a captured image acquired from a camera that captures an image of a range including a driver seat of the vehicle;

a person determination unit configured to determine whether a passenger who is a person other than a driver of the vehicle is present in an operable range set as a range in which a steering wheel of the vehicle is enabled to be operated based on an identification result by the identification unit; and

an abnormality processing unit configured to execute an abnormality process assuming that the driver is in an abnormal state in response to the person determination unit determining that the passenger is present in the operable range,

wherein:

the person determination unit determines whether two or more persons are present in the operable range based on the identification result by the identification unit;

the person determination unit is configured to determine that the passenger is present in the operable range in response to determining that two or more persons are present; and

the abnormality processing unit is configured to execute the abnormality process based on (i) a disappearing position where a person disappears from the operable range and (ii) an appearing position where a person appears in the operable range.

7. The abnormality determination apparatus according to claim 6 , wherein:

the identification unit is further configured to recognize a human face in the captured image; and

the person determination unit is configured to determine whether the passenger is present in the operable range based on the recognition result by the identification unit.

8. The abnormality determination apparatus according to claim 6 , further comprising:

a presence determination unit configured to determine whether a person is present in the operable range based on the identification result by the identification unit,

wherein:

each of the disappearing position and the appearing position is classified into one of two positions of a left position and a right position with respect to the driver seat; and

in cases that a person appears in the operable range after the presence determination unit determines that no person is present in the operable range, the abnormality processing unit is configured

to execute the abnormality process in response to the appearing position and the immediately preceding disappearing position being different from each other, and

not to execute the abnormality process in response to the appearing position and the immediately preceding disappearing position being same.

9. The abnormality determination apparatus according to claim 8 , wherein:

in response to a state in which no person appears in the operable range continuing for a predetermined period of time or longer after the presence determination unit determines that no person is present in the operable range, the abnormality process is executed by the abnormality processing unit.

10. The abnormality determination apparatus according to claim 6 , further comprising:

a controller circuit coupled via a communication link with the camera, the controller circuit being configured to implement the identification unit, the person determination unit, and the abnormality processing unit.

11. An abnormality determination apparatus mounted on a vehicle, comprising:

a controller circuit coupled via a communication link with a camera that captures an image of a range including a driver seat of the vehicle, the controller circuit being configured

to identify a person in a captured image acquired from the camera to provide an identification result,

to determine whether two or more persons are present in an operable range set as a range in which a steering wheel of the vehicle is enabled to be operated based on the identification result,

to execute an abnormality process assuming that the driver is in an abnormal state in response to determining that two or more persons are present in the operable range, and

to execute the abnormality process based on (i) a disappearing position where a person disappears from the operable range and (ii) an appearing position where a person appears in the operable range.

12. The abnormality determination apparatus according to claim 11 , wherein:

the controller circuit is further configured

to recognize a human face in the captured image to provide a recognition result,

to determine whether a person other than the driver is present in the operable range based on the recognition result, and

to execute the abnormality process in response to determining that the person other than the driver is present in the operable range.