METHOD OF EXTRACTING AN OBJECT ON A PROJECTED BACKDROP

摘要

Method of extracting, from a recorded image, an object situated in the foreground of a projected backdrop. According to the invention, said method comprises an extraction step consisting in: - establishing a law of correspondence between image elements of the projected backdrop and Panière-shot of the recorded image, - defining said object as the set of elements of the recorded image that deviate from said correspondence law. Application to video conferencing, teleteaching, televised presentations.