Trajectory matching across disjointed video views
View Patent ↗Embodiments disclosed herein provide systems and methods for matching trajectories across disjointed video views. In a particular embodiment, a method provides identifying a first trajectory associated with an object in video captured of a first region. The method further provides identifying a plurality of alternative views of the object from the video of the first region. The method further provides using the plurality of alternative views of the object, selecting a second trajectory that corresponds to the first trajectory from a plurality of trajectories associated with a plurality of objects in video captured of a second region.
1. A method of operating a video processing system, comprising:
identifying a first trajectory associated with an object in video captured of a first region;
identifying a plurality of alternative views of the object from the video of the first region; and
using the plurality of alternative views of the object, selecting a second trajectory that corresponds to the first trajectory from a plurality of trajectories associated with a plurality of objects in video captured of a second region; wherein a video processing system maintains a threshold value of change that information in a view of the object should surpass in order for that view to not be discarded by the video processing system because it provides redundant information.
2. The method of claim 1 , further comprising:
generating a composite trajectory for the object based on the first trajectory and the second trajectory.
3. The method of claim 1 , wherein:
using the plurality of alternative views of the object comprises generating a first signature for the first trajectory from the plurality of alternative views of the object; and
selecting the second trajectory comprises comparing the first signature to a plurality of signatures for the plurality of trajectories to find a second signature for the second trajectory from the plurality of signatures that satisfies a comparison criteria.
4. The method of claim 3 , wherein the criteria is satisfied if the first signature and the second signature are matching to within a threshold amount of deviation.
5. The method of claim 3 , further comprising:
identifying a plurality of alternative views of each object of the plurality of objects in the video captured of the second region; and
generating each signature of the plurality of signatures from each of the plurality of alternative views of each object of the plurality of objects.
6. The method of claim 3 , wherein:
each view of the plurality of alternative views of the object comprises a representation of the object in a frame of the video captured of the first region; and
each view of the plurality of alternative views of each object of the plurality of objects comprises a representation of each object of the plurality of objects in a frame of the video captured of the second region.
7. A video processing system, comprising:
a video interface configured to receive video captured of a first region and video captured of a second region;
a processor system configured to identify a first trajectory associated with an object in the video captured of the first region, identify a plurality of alternative views of the object from the video of the first region, and use the plurality of alternative views of the object to select a second trajectory that corresponds to the first trajectory from a plurality of trajectories associated with a plurality of objects in the video captured of the second region; wherein a video processing system maintains a threshold value of change that information in a view of the object should surpass in order for that view to not be discarded by the video processing system because it provides redundant information.
8. The video processing system of claim 7 , further comprising:
the processor system configured to generate a composite trajectory for the object based on the first trajectory and the second trajectory.
9. The video processing system of claim 7 , wherein:
the processor system is configured to use the plurality of alternative views of the object to select the second trajectory by generating a first signature for the first trajectory from the plurality of alternative views of the object and comparing the first signature to a plurality of signatures for the plurality of trajectories to find a second signature for the second trajectory from the plurality of signatures that satisfies a comparison criteria.
10. The video processing system of claim 9 , wherein the criteria is satisfied if the first signature and the second signature are matching to within a threshold amount of deviation.
11. The video processing system of claim 9 , further comprising:
the processor system configured to identify a plurality of alternative views of each object of the plurality of objects in the video captured of the second region and generate each signature of the plurality of signatures from each of the plurality of alternative views of each object of the plurality of objects.
12. The video processing system of claim 9 , wherein:
each view of the plurality of alternative views of the object comprises a representation of the object in a frame of the video captured of the first region; and
each view of the plurality of alternative views of each object of the plurality of objects comprises a representation of each object of the plurality of objects in a frame of the video captured of the second region.
13. A non-transitory computer readable medium having instructions stored thereon for operating a video processing system, wherein the instructions, when executed by the video processing system, direct the video processing system to:
identify a first trajectory associated with an object in video captured of a first region;
identify a plurality of alternative views of the object from the video of the first region; and
use the plurality of alternative views of the object to select a second trajectory that corresponds to the first trajectory from a plurality of trajectories associated with a plurality of objects in video captured of a second region; wherein the video processing system maintains a threshold value of change that information in a view of the object should surpass in order for that view to not be discarded by the video processing system because it provides redundant information.
14. The computer readable medium of claim 13 , wherein the instructions further direct the video processing system to:
generate a composite trajectory for the object based on the first trajectory and the second trajectory.
15. The computer readable medium of claim 13 , wherein the instructions direct the video processing system to use the plurality of alternative views of the object to select the second trajectory by generating a first signature for the first trajectory from the plurality of alternative views of the object and comparing the first signature to a plurality of signatures for the plurality of trajectories to find a second signature for the second trajectory from the plurality of signatures that satisfies a comparison criteria.
16. The computer readable medium of claim 15 , wherein the criteria is satisfied if the first signature and the second signature are matching to within a threshold amount of deviation.
17. The computer readable medium of claim 15 , wherein the instructions further direct the video processing system to:
identify a plurality of alternative views of each object of the plurality of objects in the video captured of the second region; and
generate each signature of the plurality of signatures from each of the plurality of alternative views of each object of the plurality of objects.
18. The computer readable medium of claim 15 , wherein:
each view of the plurality of alternative views of the object comprises a representation of the object in a frame of the video captured of the first region; and
each view of the plurality of alternative views of each object of the plurality of objects comprises a representation of each object of the plurality of objects in a frame of the video captured of the second region.