Method of foreground/background separation

A camera system for activating a scene model stability indicator of a camera for a scene model of a scene to separate a background and a foreground, said camera system comprising:

• an optical system;
• a sensor;
• a storage device configured to store a computer program;
• and
• a controller coupled to each of said optical system and said sensor to capture at least one frame in an image sequence, said controller including a processor configured to execute the program, said program comprising:
• computer program code for updating the scene model based on at least one of the captured frames from a start time to a current time;
• computer program code for determining the scene model stability associated with a current updated scene model;
• and
• computer program code for controlling a display of the scene model stability indicator of the camera while capturing frames, to notify a user that the current updated scene model can be used to separate the foreground from the background in the scene, dependent upon the determined scene model stability.

A non-transitory computer readable storage medium having recorded thereon a computer program for directing a processor to execute a method of activating a scene model stability indicator of a camera for a scene model of a scene to separate a background and a foreground, said computer program comprising code for performing the steps of:

• capturing at least one frame in an image sequence;
• updating the scene model based on at least one of the captured frames from a start time to a current time;
• determining the scene model stability associated with a current updated scene model;
• and
• controlling a display of a scene model stability indicator of the camera while capturing frames, to notify a user that the current updated scene model can be used to separate the foreground from the background in the scene, dependent upon the determined scene model stability.

A computer-implemented method of creating a scene model of a scene, and separating a background and a foreground, said method comprising the steps of:

• capturing frames in an image sequence from a start time;
• updating the scene model based on at least one of the captured frames from the start time to a current time;
• determining the scene model stability of a current updated scene model;
• determining if the current updated scene model is stable to distinguish the background from the foreground in the scene, based upon the determined scene model stability;
• and
• separating the foreground from the background in captured frames before the current updated scene model is determined to be stable while capturing a current frame.

A camera system for creating a scene model of a scene, and separating a background and a foreground, said camera system comprising:

• an optical system;
• a sensor;
• a storage device configured to store a computer program;
• a controller coupled to each of said optical system and said sensor to capture an image sequence, said controller including a processor configured to execute the program, said program comprising:
• computer program code for capturing frames in an image sequence from a start time;
• computer program code for updating the scene model based on at least one of the captured frames from the start time to a current time;
• computer program code for determining the scene model stability of a current updated scene model;
• computer program code for determining if the current updated scene model is stable to distinguish the background from the foreground in the scene, based upon the determined scene model stability;
• and
• computer program code for separating the foreground from the background in captured frames captured before the current updated scene model is determined to be stable while capturing a current frame.