Variable Speed Sign Value Prediction and Confidence Modeling
First Claim
Patent Images
1. A method comprising:
- receiving a set of traffic data from at least one vehicle for a defined time period, the received traffic data comprising captured images, videos, or interpreted speed limit values of a variable speed sign;
determining, using a processor, a predicted speed limit value for the variable speed sign from at least a portion of the received traffic data; and
calculating a confidence level for the predicted speed limit value for the variable speed sign.
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Abstract
Systems, methods, and apparatuses are disclosed for predicting the value of a variable speed sign (VSS) and determining the predicted value'"'"'s associated confidence level. Highly assisted driving (HAD) vehicles may read or capture images of the VSS. The speed limit values, images, or videos of the VSS are reported and received by a network and database for analysis. A predicted speed limit value is determined for the variable speed sign from at least a portion of the received traffic data. A confidence level is also calculated for the predicted speed limit value for the variable speed sign.
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Citations
22 Claims
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1. A method comprising:
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receiving a set of traffic data from at least one vehicle for a defined time period, the received traffic data comprising captured images, videos, or interpreted speed limit values of a variable speed sign; determining, using a processor, a predicted speed limit value for the variable speed sign from at least a portion of the received traffic data; and calculating a confidence level for the predicted speed limit value for the variable speed sign. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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receiving a set of traffic data from at least one vehicle in a first time period, the received traffic data comprising captured images, videos, or interpreted speed limit values of a variable speed sign; determining, using a processor, a predicted speed limit value for the variable speed sign from a mode of at least a portion of the received traffic data; calculating a confidence level for the predicted speed limit value for the variable speed sign; comparing the calculated confidence level with a user'"'"'s confidence level; and reporting the predicted speed limit value to a vehicle when the calculated confidence level is greater than or equal to the user'"'"'s confidence level.
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13. An apparatus comprising:
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at least one processor; and at least one memory including computer program code for one or more programs; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least perform; receive a set of traffic data from at least one vehicle for a defined time period, the received traffic data comprising captured images, videos, or interpreted speed limit values of a variable speed sign; determine a predicted speed limit value for the variable speed sign from a portion of the received traffic data; and calculate a confidence level for the predicted speed limit value for the variable speed sign. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification