Smart traffic sign system and method

摘要

A system for increasing awareness of a driver to traffic-signs on the road is provided herein. The system includes: a sensor attached to a vehicle and configured to determine a type of one or more traffic-signs that are present in a scene containing the vehicle, wherein at least some of the traffic-signs are time-variant traffic-signs which present time-variant visual indicators; and a controller configured to: monitor and analyze, in real time: relative metrics indicative of one or more spatial relations between the vehicle and the one or more detected traffic-signs; and temporal data associated with the time-variant visual indicators of the time-variant traffic-signs; apply one or more decision functions to at least two of: the detected one or more traffic-signs and to the monitored relative metrics, and the temporal data associated with the time-variant visual indicators, so as invoke an action selected from a predefined set of actions.

主权项

1. A system comprising:
a gated sensor attached to a vehicle and configured to receive near infrared (NIR) pulsed and/or continuous wave (CW) modulated illumination signals from a scene, and to detect one or more traffic-signs that are present in the scene, wherein at least some of the traffic-signs are time-variant traffic-signs which present time-variant visual indicators; and a controller configured to:
synchronize the gated sensor with said received NIR pulsed and/or CW modulated signals to yield at least one image of the one or more traffic-signs that are present in the scene;monitor and analyze, in real time and with respect to the at least one image:
relative metrics indicative of one or more spatial relations between the vehicle and the one or more detected traffic-signs; andtemporal data associated with the time-variant visual indicators of the time-variant traffic-signs, andapply one or more decision functions to at least two of: the detected one or more traffic-signs, the monitored relative metrics, and the temporal data associated with the time-variant visual indicators, to invoke an action selected from a predefined set of actions.