Apparatus and methods for object border tracking

DETAILED DESCRIPTION The present invention seeks to provide an improved object identification and tracking system.
There is thus provided in accordance with a preferred embodiment of the present invention a tracking method including receiving a representation of an event including at least one dynamic object having a border and having at least one edge portion which is absent during at least a portion of the event, and providing an ongoing indication of the location of the border of the object during the event.
Further in accordance with a preferred embodiment of the present invention the representation includes a video representation.
Still further in accordance with a preferred embodiment of the present invention the edge portion includes a portion of the border.
Additionally in accordance with a preferred embodiment of the present invention the method also includes reconstructing at least one absent edge portion.
There is also provided in accordance with another preferred embodiment of the present invention a tracking method including receiving a representation of an event including at least one dynamic object having a border, and providing an ongoing indication of the location of the border of the object during the event.
There is also provided in accordance with another preferred embodiment of the present invention an edge-tracking method for tracking at least one dynamic object appearing in a sequence of frames, the method including for at least one key frame within the sequence of frames, marking at least one edge of at least one dynamic object based at least partly on external input, and for all frames within the sequence of frames other than the at least one key frame, automatically marking at least one edge of at least one dynamic object based on output from the first marking step.
Further in accordance with a preferred embodiment of the present invention the method also includes remarking said at least one automatically marked edge at least once, based on external input.
Still further in accordance with a preferred embodiment of the present invention the external input includes human operator input