A system for tracking objects (10, 30, 502) including visually sensible indicators (12, 32, 74, 100, 238, 300, 400, 504, 600) on objects being tracked, at least one imager (14, 34, 102, 200, 210, 220, 222, 230, 234, 500) capturing images of the objects being tracked which images also show the visually sensible indicators and at least one image processor (16, 36, 104, 202, 212, 224, 236, 506) receiving outputs of the at least one imager and extracting from the outputs coded information indicated by the visually sensible indicators, the coded information being viewable on a display (18, 38), either locally or at a remote location ( 20, 40, 204, 214, 226, 240).