US 12,321,415 B2
Method and device for object tracking
Torbjörn Löfgren, Uppsala (SE)
Assigned to SAAB AB, Linköping (SE)
Filed by SAAB AB, Linköping (SE)
Filed on Jun. 8, 2022, as Appl. No. 17/835,343.
Prior Publication US 2022/0398294 A1, Dec. 15, 2022
Int. Cl. G06F 17/13 (2006.01)
CPC G06F 17/13 (2013.01) 11 Claims
OG exemplary drawing
 
1. A method for object tracking, the method comprising:
defining, by an electronic device, a state-space of interest based on a class of objects subject to tracking;
representing, by the electronic device, the state-space of interest using a finite element model (FEM) representation partitioning the state-space of interest in elements, wherein FEM is a numerical model representing said state-space partitioned into elements where basis functions are associated to the partitioning;
initiating, by the electronic device, a state-space distribution defining a probability density for different states of at least one tracked object in the state-space of interest;
updating, by the electronic device, the state-space distribution based on evidence, wherein the evidence being at least one of sensor data and external data of at least one tracked object in said class of objects;
propagating, by the electronic device, the state-space distribution of the at least one tracked object for a time period; and
autonomously prioritizing a state-space resolution of the state-space distribution, wherein prioritizing comprises increasing the resolution for the at least one tracked object in order to emphasize said at least one tracked object in said state-space distribution and lower resolution in domains of said state-space of interest having low priority.