Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Traffic analysis or control of surface vehicle
Reexamination Certificate
2005-07-18
2008-11-18
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Traffic analysis or control of surface vehicle
C701S300000, C382S106000
Reexamination Certificate
active
07454287
ABSTRACT:
A method of operating a traffic sensor to define ranges of centers of traffic lanes from the traffic sensor is described. The method comprises a) providing a set of lane center variables representing the ranges of the centers of the traffic lanes from the traffic sensor; b) initializing each lane center variable in the set of lane center variables to have an associated starting range value; and then, c) updating the set of lane center variables by, for each vehicle in a plurality of vehicles, i) detecting the vehicle, ii) determining an associated lane center variable having an associated lane center range value closest to the vehicle; iii) estimating a vehicle displacement from the associated lane center range value, and iv) calculating a new lane center range value for the associated lane centre variable using the associated lane center range value and the vehicle displacement.
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Bereskin & Parr
Camby Richard M.
Image Sensing Systems, Inc.
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