Information processing apparatus
An information processing apparatus includes an image processing unit configured to detect a road sign from an image taken by an in-vehicle camera and configured to calculate a reliability indicating a probability that the road sign is of a specific type, and a determination processing unit configured to determine presence or absence of the road sign of the specific type in the image, in a case of the reliability less than a threshold value, by referring to map information indicating a position of the road sign of the specific type on a map based on a position at which the image is taken.
1 . An information processing apparatus comprising:
an image processing unit configured to detect a road sign from an image taken by an in-vehicle camera and configured to calculate a reliability indicating a probability that the road sign is of a specific type;
a determination processing unit configured to determine presence or absence of the road sign of the specific type in the image, in a case of the reliability being less than a threshold value, by referring to map information indicating a position of the road sign of the specific type on a map based on a position at which the image is taken, and further configured to, in a case of the reliability being equal to or greater than the threshold value, determine that the road sign of the specific type is present in the image; and
an evaluation processing unit configured to evaluate driving of a vehicle equipped with the in-vehicle camera, based on the image, by deciding whether the car is obeying a traffic regulation indicated by the road sign of the specific type or not, when the determination processing unity determines that the road sign of the specific type is present in the image.
2 . The information processing apparatus according to claim 1 , wherein
the determination processing unit is configured to estimate a traveling direction of a vehicle equipped with the in-vehicle camera based on a temporal change in the position at which the image is taken,
in the case of the reliability being less than the threshold value, when the road sign of the specific type is present in the traveling direction on the map, the determination processing unit is configured to determine that the road sign of the specific type is present in the image, and
in the case of the reliability being less than the threshold value, when the road sign of the specific type is not present in the traveling direction on the map, the determination processing unit is configured to determine that the road sign of the specific type is not present in the image.
3 . The information processing apparatus according to claim 1 , wherein the image processing unit is configured to detect the road sign from the image by using a detection model that is machine-learned by supervised learning and that receives the image and a type of the road sign and outputs the road sign of the specific type.