Defining a handoff zone for tracking a vehicle between cameras
First Claim
1. A method of defining a handoff zone for tracking a vehicle between cameras, the method comprising:
- receiving a first image stream from a first camera having a first field of view;
receiving a second image stream from a second camera having a second field of view, the second camera being different from the first camera, and the second field of view being different from and at least partially overlapping with the first field of view;
determining an overlap area that defines the overlap between the first image stream and the second image stream;
determining a handoff zone within the overlap area, the handoff zone having an area that is smaller than the overlap area, the handoff zone defined by a beginning handoff border indicator and an end handoff border indicator, and wherein tracking of a vehicle is passed from the first camera to the second camera after the vehicle crosses the beginning handoff border indicator;
determining a distance between the beginning handoff border indicator and the end handoff border indicator;
comparing the distance to a predetermined distance threshold;
determining that the distance is less than the predetermined distance threshold;
generating, in response to the determination that the distance is less than the predetermined distance threshold, an alert to adjust one or more of the beginning handoff border indicator and the end handoff border indicator; and
receiving and storing boundaries of the adjusted one or more of the beginning handoff border indicator and the end handoff border indicator,wherein the steps of receiving, determining, comparing, generating, receiving and storing are performed by one or more processors.
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Abstract
Defining a handoff zone for tracking a vehicle between cameras is disclosed. Initially, a first image stream is received from a first camera having a first field of view. A second image stream is also received from a second camera having a second field of view, where the second field of view is different from and at least partially overlapping with the first field of view. Next, an overlap area that defines the overlap between the first image stream and the second image stream is determined. A handoff zone within the overlap area is then determined, where tracking of the vehicle is passed from the first camera to the second camera after the vehicle enters the handoff zone. Finally, boundaries of the handoff zone are stored.
71 Citations
27 Claims
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1. A method of defining a handoff zone for tracking a vehicle between cameras, the method comprising:
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receiving a first image stream from a first camera having a first field of view; receiving a second image stream from a second camera having a second field of view, the second camera being different from the first camera, and the second field of view being different from and at least partially overlapping with the first field of view; determining an overlap area that defines the overlap between the first image stream and the second image stream; determining a handoff zone within the overlap area, the handoff zone having an area that is smaller than the overlap area, the handoff zone defined by a beginning handoff border indicator and an end handoff border indicator, and wherein tracking of a vehicle is passed from the first camera to the second camera after the vehicle crosses the beginning handoff border indicator; determining a distance between the beginning handoff border indicator and the end handoff border indicator; comparing the distance to a predetermined distance threshold; determining that the distance is less than the predetermined distance threshold; generating, in response to the determination that the distance is less than the predetermined distance threshold, an alert to adjust one or more of the beginning handoff border indicator and the end handoff border indicator; and receiving and storing boundaries of the adjusted one or more of the beginning handoff border indicator and the end handoff border indicator, wherein the steps of receiving, determining, comparing, generating, receiving and storing are performed by one or more processors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A system for defining a handoff zone for tracking a vehicle between cameras, the system comprising one or more processors connected to at least one storage device, the system being configured to:
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receive a first image stream from a first camera having a first field of view; receive a second image stream from a second camera having a second field of view, the second camera being different from the first camera, and the second field of view being different from and at least partially overlapping with the first field of view; determine an overlap area that defines the overlap between the first image stream and the second image stream; determine a handoff zone within the overlap area, the handoff zone having an area that is smaller than the overlap area, the handoff zone defined by a beginning handoff border indicator and an end handoff border indicator, and wherein tracking of a vehicle is passed from the first camera to the second camera after the vehicle crosses the beginning handoff border indicator; determine a distance between the beginning handoff border indicator and the end handoff border indicator; compare the distance to a predetermined distance threshold; determine that the distance is less than the predetermined distance threshold; generate, in response to the determination that the distance is less than the predetermined distance threshold, an alert to adjust one or more of the beginning handoff border indicator and the end handoff border indicator; and receive and storing boundaries of the adjusted one or more of the beginning handoff border indicator and the end handoff border indicator.
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27. A storage device storing a computer program for defining a handoff zone for tracking a vehicle between cameras, the computer program comprising one or more code segments that, when executed, cause one or more processors to:
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receive a first image stream from a first camera having a first field of view; receive a second image stream from a second camera having a second field of view, the second camera being different from the first camera, and the second field of view being different from and at least partially overlapping with the first field of view; determine an overlap area that defines the overlap between the first image stream and the second image stream; determine a handoff zone within the overlap area, the handoff zone having an area that is smaller than the overlap area, the handoff zone defined by a beginning handoff border indicator and an end handoff border indicator, and wherein tracking of a vehicle is passed from the first camera to the second camera after the vehicle crosses the beginning handoff border indicator; determine a distance between the beginning handoff border indicator and the end handoff border indicator; compare the distance to a predetermined distance threshold; determine that the distance is less than the predetermined distance threshold; generate, in response to the determination that the distance is less than the predetermined distance threshold, an alert to adjust one or more of the beginning handoff border indicator and the end handoff border indicator; and receive and storing boundaries of the adjusted one or more of the beginning handoff border indicator and the end handoff border indicator.
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Specification