Patent ID: 8625897
Filing Date: 2014-01-07
Classification: G06K,G06T,H04N

Abstract:
1. A computer-implemented method of segmenting a foreground portion from a background portion of an image, comprising: receiving the image at a processor, wherein the image comprises a plurality of image elements, and the image represents at least one user, at least one foreground object in proximity to the at least one user, and a background; accessing at least one trained decision tree stored on a memory; selecting an image element from the image; applying the image element to the or each trained decision tree to obtain one or more probabilities of the image element representing part of a user, a foreground object or background; assigning a classification of user, foreground object or background to the image element in dependence on the one or more probabilities; repeating the steps of selecting, applying and assigning for each image element in the image; labeling the image elements having the classification of user as the foreground portion, and the image elements having the classification of foreground object and background as the background portion; and subsequent to labeling the image elements: