Method for foreground and background determination in an image
AssigneeSony Depthsensing Solutions SA/NV
InventorLaurent Guigues
Life of this patent
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Abstract
Described herein is a method for image processing in which a captured image is processed to provide a background image which is updated in accordance with relative movement between foreground and background in successive captured images.
Claims21
A method for image processing at least one image captured by an imaging system, the method comprising the steps of:
- a) classifying pixels of each image into one of at least two categories, each pixel comprising at least one of:
- depth information and colour information relating to said at least one image;
- b) assigning pixels belonging to the same category to at least one region;
- c) verifying, for each region, that the category of its pixels is correct;
- and
- d) re-classifying each incorrectly classified pixel by changing its category.
A method according to 4, wherein step d) comprises re-classifying pixels from one of:
- a foreground category to a background category;
- a background category to a foreground category;
- an unknown category to a background category;
- and a background category to an unknown category.
A non-transitory computer readable medium configured to store a program to that, when executed cause a computer to perform a method comprising:
- a) classifying pixels of each image into one of at least two categories, each pixel comprising at least one of:
- depth information and colour information relating to said at least one image;
- b) assigning pixels belonging to the same category to at least one region;
- c) verifying, for each region, that the category of its pixels is correct;
- and
- d) re-classifying each incorrectly classified pixel by changing its category.
An interactive computerised system comprising:
- an imaging system configured to capture at least one image of a scene within its frustum;
- a gesture recognition system configured to capture gestures performed by a user within the frustum of the imaging system;
- and
- a computerised system associated with the imaging system and with the gesture recognition system, the computerised system including at least one processor for processing each captured image of the scene and configured to process captured gestures performed by a user within frustum of the imaging system, wherein processing each captured image of the scene comprises:
- a) classifying pixels of each image into one of at least two categories, each pixel comprising at least one of:
- depth information and colour information relating to said at least one image;
- b) assigning pixels belonging to the same category to at least one region;
- c) verifying, for each region, that the category of its pixels is correct;
- and
- d) re-classifying each incorrectly classified pixel by changing its category.
21-23. (canceled)
Dependencies are inferred from the claim text.