Patent ID: 7319479

Claim:
A computer-readable medium encoded with a computer program representing instructions to cause a computer to: analyze information used to define a first path, the information used to define the first path including a first plurality of data elements, each data element from the first plurality of data elements associated with the first path including a spatial value and a time value, each spatial value associated with the first path indicating a position of a person associated with the first path at a time associated with the corresponding time value; analyze information used to define a second path, the information used to define the second path including a second plurality of data elements, each data element from the second plurality of data elements associated with the second path including a spatial value and a time value, each spatial value associated with the second path indicating a position of a person associated with the second path at a time associated with the corresponding time value, the spatial values used to define the second path including spatial values not included in the information used to define the first path; determine, at least partially based on the analysis of the information used to define the first path and the analysis of the information used to define the second path, if the person associated with the first path and the person associated with the second path are the same person; and remove a data element from the first plurality of data elements when the data element is associated with an exclusion region, the data element associated with the exclusion region being removed based on a region of interest filter, the data element being removed to prevent linking of the first path with the second path based on the data element.