Device for detecting an incident or the like on a traffic lane portion
First Claim
1. A method of detecting an incident on a portion of route (1) situated in a scene (2) when said portion of route is suitable for having objects traveling therealong, and when the method makes use of a video camera (3) having a target (4) constituting an optoelectronic converter of a real optical image of the scene, said target being controlled by a programmable processor member (6), the process for detecting incidents being suitable for being performed by activating said programmable processor member only while the real image (5) of the scene focused on the target (4) is stationary, the method being characterized in that it consists:
- in detecting the beginning of movement of the real image of the scene relative to the target;
in deactivating the programmable processor member as soon as the real image of the scene begins to move relative to the target;
in detecting the end of movement of the real image of the scene relative to the target; and
in reactivating the programmable processor member at the end of the movement of the real image of the scene relative to the target in order to implement the process for detecting an incident.
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Accused Products
Abstract
The invention concerns a method for detecting an incident on a traffic lane portion (1) located in a landscape (2) when the lane portion is likely to be used by objects. The invention is characterized in that the method uses a video camera (3) comprising a target (4) constituting an optoelectronic converter of a real optical image of the landscape (2), the target being monitored by a programmable processing member (6) and the incident detection process being designed to be carried out by activating the programmable processing member (6) only when the real landscape image focused on the target (4) is stationary. The inventive method is characterized in that it consists in detecting the beginning of a displacement of the real image of the landscape relative to the target, in deactivating the programmable processing member right at the beginning of the displacement of the real image of the landscape relative to the target, and in reactivating the programmable processing member at the end of the displacement of the real image of the landscape relative to the target to carry out the incident detection process.
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Citations
13 Claims
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1. A method of detecting an incident on a portion of route (1) situated in a scene (2) when said portion of route is suitable for having objects traveling therealong, and when the method makes use of a video camera (3) having a target (4) constituting an optoelectronic converter of a real optical image of the scene, said target being controlled by a programmable processor member (6), the process for detecting incidents being suitable for being performed by activating said programmable processor member only while the real image (5) of the scene focused on the target (4) is stationary, the method being characterized in that it consists:
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in detecting the beginning of movement of the real image of the scene relative to the target;
in deactivating the programmable processor member as soon as the real image of the scene begins to move relative to the target;
in detecting the end of movement of the real image of the scene relative to the target; and
in reactivating the programmable processor member at the end of the movement of the real image of the scene relative to the target in order to implement the process for detecting an incident. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification