Data-driven delta-generalized labeled multi-bernoulli tracker
| DWPI Title: Method for tracking moving objects e.g. manned aircraft, involves utilizing multi-target likelihood function to associate persistent targets with unlabeled measurement data to update persistent tracks and to initiate track for each target |
| Abstract: A system and method for tracking a plurality of objects. Unlabeled measurement data identifying a plurality of targets corresponding to the plurality of objects is received. A multi-target likelihood function is generated using a persistent target density, a birth target density, and a clutter density. The multi-target likelihood function is used to associate persistent targets with the unlabeled measurement data to update persistent tracks and to initiate a new track for each target in the plurality of targets in the measurement data that is not associated with a persistent target. |
| Use: Method for tracking moving objects such as objects in space, objects on ground, objects in air, objects under water (all claimed) and manned or unmanned aircraft. |
| Advantage: The method enables using a filter that initializes targets immediately upon detection with appropriate probability of existence without introducing statistical bias or additional heuristics. |
| Novelty: The method involves receiving unlabeled measurement data (126) identifying targets (124) corresponding to objects (102). Multi-target likelihood function is generated using persistent target density, birth target density and clutter density. The multi-target likelihood function is utilized to associate persistent targets with the unlabeled measurement data to update persistent tracks and to initiate a track for each target in the targets in the measurement data that is not associated with a persistent target. Joint posterior density is generated through Bayes update. Joint posterior density forward in time is propagated according to multi-target Chapman-Kolmogorov equation. |
| Filed: 7/31/2018 |
| Application Number: US16050992A |
| Tech ID: SD 14271.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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