Method and system for improving surveillance of PTZ cameras

摘要

The subject matter discloses a method, comprising obtaining a scene from a video camera and defining at least one point of the scene; creating a first scene terrain model of the scene, said first scene terrain model comprises a typical human object size in pixels in said at least one point of the scene; creating a second scene model of the scene, said second model defines a false positive determination that said at least one point comprises a human object; wherein said second scene model is created when the scene does not contain a human object; obtaining an image of the scene, said image is captured by a video camera; determining whether the human object is detected at the at least one point of said captured image by applying said first scene terrain model and said second scene model on the least one point.

主权项

1. A method, comprising:
obtaining a scene from a video camera and defining at least one point of the scene; creating a first scene terrain model of the scene, said first scene terrain model comprises a human object size in pixels in said at least one point of the scene; creating a second scene model of the scene, said second model defines a false positive determination that said at least one point comprises a human object; wherein said second scene model is created when the scene does not contain a human object; obtaining an image of the scene, said image is captured by a video camera; determining whether the human object is detected at the at least one point of said captured image by applying said first scene terrain model and said second scene model on the at least one point; wherein the second scene model of the scene comprises a Panoramic HOG map; obtaining a position of a PTZ camera, the position including values of pan, tilt and zoom; detecting a PTZ frame by the PTZ camera at the obtained PTZ position; obtaining a successful detection of the human object in a specific location in the frame of the PTZ camera; determining the polar coordinates of the human object; determining an altitude of the human object; and obtaining a panoramic map of the detected PTZ frame and identifying a point of the panoramic map closest to the detected human object, according to the determined polar coordinates.