Apparatus and methods for predicting state of visibility for a road object
AssigneeHERE Global B.V.
InventorsLeon Stenneth, Jerome Beaurepaire, Jeremy Young
Life of this patent
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Abstract
A method, apparatus and computer program product are provided for predicting a state of visibility for a road object. For example, at least one processor receives road sign attribute data indicating at least one attribute of a road sign. The processor further receives weather forecast data indicating a weather forecast of a location in which the road sign is disposed, and using the road sign attribute data and the weather forecast data, a state of visibility for the road sign is identified.
Claims21
A non-transitory computer-readable storage medium having computer program code instructions stored therein, the computer program code instructions, when executed by at least one processor, cause the at least one processor to:
- receive road sign attribute data indicating at least one attribute of a road sign;
- receive weather forecast data indicating a weather forecast of a location in which the road sign is disposed;
- and
- using the road sign attribute data and the weather forecast data, identify a state of visibility for the road sign.
An apparatus comprising at least one processor and at least one non-transitory memory including computer program code instructions, the computer program code instructions configured to, when executed, cause the apparatus to:
- receive a request for navigating a mobile device to a destination;
- identify a travel link to the destination;
- receive attribute data indicating at least one attribute of a road object associated with the travel link;
- receive weather forecast data indicating a weather forecast of a location in which the road object is disposed;
- and
- using the attribute data and the weather forecast data, identify a state of visibility for the road object.
An apparatus comprising at least one processor and at least one non-transitory memory including computer program code instructions, the computer program code instructions configured to, when executed, cause the apparatus to:
- predict a likelihood of at least one road sign existing within a travel link;
- and
- for a road sign predicted to exist within the travel link:
- predict a location of the road sign and at least one attribute of the road sign using one or more attributes associated with the travel link;
- receive weather forecast data indicating a weather forecast of the location;
- and
- identify a state of visibility for the road sign using the at least one attribute and the weather forecast data.
A method of training a machine learning model for predicting a state of visibility for a road sign, the method comprising:
- receiving historical data for the road sign, the historical data including, for each of at least one past time or duration:
- road sign attribute data indicating at least one attribute of the road sign;
- historical weather data indicating a historical weather condition of a location in which the road sign is disposed;
- and
- ground truth data indicating a true state of which sign information is displayed by the road sign;
- and
- training the machine learning model to predict the state of visibility using the historical data.
Dependencies are inferred from the claim text.