1. A camera system comprising: an object detection module receiving image data produced by an image capturing device, the image data representing multiple images of a field of view of the image capturing device, the object detection module being operable to detect objects appearing in one or more of the multiple images; an object tracking module connected to the object detection module and operable to temporally associate instances of a first object detected in a first group of the multiple images, the first object having a first signature representing features of the first object derived from the images of the first group; and a match classifier connected to the object tracking module for matching object instances and including a set of matching and non-matching parameters populating a feature classification space, the match classifier being operable to match object instances by analyzing data derived from the first signature of the first object and a second signature of a second object, the second object being detected in a second image distinct from the images of the first group, and the second signature representing features of the second object derived from the second image, the match classifier analyzing with reference to the set of match and non-match parameters data derived from combinations of the features represented by the first and second signatures to determine whether the second signature matches the first signature and thereby indicate whether the first and second objects correspond to the same physical object.