Patent ID: 11904854
Assignee: TOYOTA RESEARCH INSTITUTE, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC B  G | IPC B  G

Claim 5:
6. A computing device comprising:
one or more processors;
one or more memory modules; and
machine readable instructions stored in the one or more memory modules that, when executed by the one or more processors, cause the computing device to:
receive data relating to pedestrian activity at each of the road portions;
for each of the road portions, determine whether a number of pedestrians that cross a street within the road portion outside of a crosswalk during a predetermined period of time is greater than a predetermined threshold;
label each image of a road portion for which the number of pedestrians that cross the street during the predetermined period of time exceeds the predetermined threshold as containing a constructive crosswalk;
label each image of a road portion for which the number of pedestrians that cross the street during the predetermined period of time does not exceed the predetermined threshold as not containing a constructive crosswalk;
use the labeled images to train a neural network to receive an input of a road portion and determine a likelihood that the road portion contains a constructive crosswalk where pedestrians are likely to cross a street within the road portion outside of a crosswalk;
capturing an image of a sample road portion with one or more vehicle sensors of an autonomous vehicle;
input the image into the trained neural network;
determine a likelihood that one or more locations of the road portion comprise a constructive crosswalk based at least in part on an output of the trained neural network; and
control operation of the autonomous vehicle based on the determined likelihood that the one or more locations of the road portion comprise a constructive crosswalk.