1. An apparatus comprising: a processor; and a memory storing instructions executable by the processor, the instructions when executed cause the processor to: analyze a sequence of video frames of a camera view field to track an object in said view field; determine start and end points of said track in said view field; determine start and end times for said track corresponding to said start and end points respectively; store said start and end points and said start and end times as attributes of said track; determine a temporal relationship between an end time of a track in a first view field and a start time of a track in a second view field; determine, based on said temporal relationship, a likelihood value of a transition of said track in said first view field to said track in said second view field; and store said likelihood value, the memory further comprising instructions executable by the processor, the instructions when executed further causes the processor to track, on a sequence of video frames of a plurality of surveillance network camera view fields, an object in respective view fields and store respective start and end points and start and end times as attributes of each said track for respective view fields.