Short-time stopping detection from red light camera videos
First Claim
1. A method to detect a vehicle running a stop signal positioned at an intersection, the method comprising:
- acquiring a sequence of frames from at least one video camera monitoring an intersection being signaled by the stop signal;
defining a first region of interest (ROI) including a road region located before the intersection on the image plane;
searching the first ROI for a candidate violating vehicle;
in response to detecting the candidate violating vehicle in the first ROI, tracking a location of the detected candidate violating vehicle across a number of frames;
generating at least one trajectory using the location in the number of frames;
defining a second ROI located after the stop signal on the image plane;
in response to the at least one trajectory including a component in the first and second ROIs, classifying the candidate violating vehicle as belonging to a violating vehicle; and
in response to the at least one trajectory not including a component in both of the first and second ROIs, classifying the candidate violating vehicle as belonging to a non-violating vehicle based on the at least one trajectory.
4 Assignments
0 Petitions
Accused Products
Abstract
A method for detecting a vehicle running a stop signal positioned at an intersection includes acquiring a sequence of frames from at least one video camera monitoring an intersection being signaled by the stop signal. The method includes defining a first region of interest (ROI) including a road region located before the intersection on the image plane. The method includes searching the first ROI for a candidate violating vehicle. In response to detecting the candidate violating vehicle, the method includes tracking at least one trajectory of the detected candidate violating vehicle across a number of frames. The method includes classifying the candidate violating vehicle as belonging to one of a violating vehicle and a non-violating vehicle based on the at least one trajectory.
10 Citations
18 Claims
-
1. A method to detect a vehicle running a stop signal positioned at an intersection, the method comprising:
-
acquiring a sequence of frames from at least one video camera monitoring an intersection being signaled by the stop signal; defining a first region of interest (ROI) including a road region located before the intersection on the image plane; searching the first ROI for a candidate violating vehicle; in response to detecting the candidate violating vehicle in the first ROI, tracking a location of the detected candidate violating vehicle across a number of frames; generating at least one trajectory using the location in the number of frames; defining a second ROI located after the stop signal on the image plane; in response to the at least one trajectory including a component in the first and second ROIs, classifying the candidate violating vehicle as belonging to a violating vehicle; and in response to the at least one trajectory not including a component in both of the first and second ROIs, classifying the candidate violating vehicle as belonging to a non-violating vehicle based on the at least one trajectory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A system for detecting a vehicle running a stop signal positioned at an intersection, the system comprising a traffic regulation enforcement device including a memory and a processor in communication with the processor configured to:
-
acquire a sequence of frames from at least one video camera monitoring an intersection being signaled by the stop; define a first region of interest (ROI) including a road region located before the intersection on the image plane; search the first ROI for a candidate violating vehicle; in response to detecting the candidate violating vehicle in the first ROI, track a location of the detected candidate violating vehicle; generate at least one trajectory using the location in the number of frames; define a second ROI located after the stop signal on the image plane; in response to the at least one trajectory including a component in the first and second ROIs, classify the candidate violating vehicle as belonging to a violating vehicle; and in response to the at least one trajectory not including a component in both of the first and second ROIs, classify the candidate violating vehicle as belonging to a non-violating vehicle based on the at least one trajectory. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
Specification