METHOD FOR DETECTING OBJECT LEFT-BEHIND IN SCENE

摘要

PROBLEM TO BE SOLVED: To detect an object left-behind in a scene by updating a set of background models using a sequence of images acquired concerning the scene by a camera. SOLUTION: Each background model is updated at different temporal scales ranging from short term to long term. A foreground mask is determined from each background model after the updating for the particular images of the sequence. A motion image is updated from the set of foreground masks. In the motion images, each pixel has an associated evidence value. The evidence values are compared with an evidence threshold to detect and signal an object left-behind in the scene. COPYRIGHT: (C)2009,JPO&INPIT