Method and apparatus for automatic segmentation of a foreground object in an image

摘要

The present invention relates to a method for segmenting a foreground object in an image, comprising the steps of: providing a digital scene (1) with a to be segmented foreground object and a background, providing a the background representing the digital reference image (2), generating a the pixel by pixel difference between the image and the reference image representing the difference image (3), means of pixel-by-pixel comparing the difference image (3) with a certain threshold value, allocation of each pixel of the scene (1) either to the background or the foreground object on the basis of the threshold comparison and generating a result of containing the segmented foreground object image (7). The present invention is characterized in that the threshold value is determined that, at first in the differential image (3) a spatial estimate of the pixels to be assigned to the foreground object due to the outer contours and the threshold value then carried out by means of one or more properties of the set of the remaining pixels of the difference image (3) is determined.