Here Global B.v.

Siemens Aktiengesellschaft

Joshua Thompson

Gavril Adrian Giurgiu

Dongwook Jang

Yunjie Zhao

Anton Anastassov

Alex Averbuch

Xiang Liu

An approach is provided for generating road curvature data. The approach, for example, involves map matching location trace data to a road network, wherein the location trace data is associated with ground truth curvature values. The approach also involves dividing the road network into a plurality of bounded areas (e.g., boxes or other shapes). The approach further involves extracting one or more training features for each bounded area of the plurality of bounded areas from the location trace data map matched to said each bounded area. The approach further involves training a machine learning model based on the one or more training features and ground truth curvature values. The approach further involves providing the trained machine learning model to predict the road curvature data.

Method, apparatus, and system for providing road curvature data

An approach is provided for road curvature data. The approach, for example, involves segmenting a road segment or plurality of road segments into a plurality of slices. The approach also involves retrieving location trace data for the plurality of slice. The location trace data, for instance, is collected from one or more location sensors of a plurality of vehicles traversing the plurality of slices. The approach further involves computing respective curvatures for the plurality of slices based on the location trace data. The approach further involves providing the road curvature data for the road segment of plurality of road segments (e.g., comprising an intersection) based on the respective curvatures of the plurality of slices.

Apparatus and methods are described for updating a geographic database based on road object probabilities. For example, an initial value set for an existence probability that a road object exists is determined. Observation data collected from sensors of vehicles are received. A total quantity of the observation data include a first quantity of vehicles that observed a presence of the road object and a second quantity of the vehicles observed an absence of the road object. A presence probability indicative of a likelihood that observation data accurately describe the road object and an absence probability indicative of a likelihood that observation data accurately describe the road object are calculated to determine an updated value for the existence probability. A geographic database is updated in response to the comparison of the updated value for the existence probability to a threshold confidence level.

Updating maps and road status

A method is presented, which comprises: Further presented are inter-alia corresponding apparatuses, a corresponding system and a corresponding computer program code.

Determining speed information

A method and apparatus for providing navigation services including illumination data. A request for a route is received with one or more preferences related to illumination for the route. One or more road segments that have illumination road attributes that correspond to the one or more preferences are selected. The illumination road attributes are calculated as a function of high beam frequency for the one or more road segments. The route is generated including the one or more road segments. The route is provided with the illumination road attributes.

Mapping road illumination

An approach is provided for measuring parking duration from anonymized data. The approach involves receiving parking data indicating anonymized park in and park out events from connected vehicles. The approach also involves performing a first filtering of the parking data to remove the park out events that occur within a time interval and before a first park in event occurring within the time interval, and to remove the park in events that occur within the time interval and after a last park out event occurring within the time interval. The approach further involves performing a second filtering of the parking data remaining after the first filtering to remove park in events or park out events so that the numbers of park in and park out events are balanced. The approach then involves calculating parking duration data from the park in and park out events remaining after the second filtering.

Method and apparatus for measurement of parking duration from anonymized data

An approach is provided for generating location data error maps. The approach involves determining location data error information associated with at least one set of location data. The approach also involves causing, at least in part, an encoding of the location data error information as a function of a position parameter. The approach further involves causing, at least in part, a generation of at least one location data error map based, at least in part, on the encoding.

Method and apparatus for providing a location data error map

A method and apparatus for mapping road illumination. A server receives high beam data. The server receives roadway conditions. The server calculates a high beam frequency for a road segment based on the high beam data and the roadway conditions. The server calculates road illumination from the high beam frequency. The server augments a geographic database with road illumination information.

Growing community of inventors

Chicago, IL, United States of America

Joshua Thompson