Patent ID: 7783075
Filing Date: 2010-08-24
Classification: G06K,H04N

Abstract:
1. A computer-implemented process for blurring the background in an image of an image sequence, comprising using a computer to perform the process actions of: (a) dividing an image of an image sequence into pixels; (b) creating a first probability map of each pixel's probability of being a background pixel; (c) using an object detector to find an object in the image and using any found object to determine the probability of each pixel being background thereby creating a second probability map; (d) specifying that each pixel in the first probability map is not background, if it was determined by the object detector to belong to an object; (e) combining the first and second probability maps to obtain a combined probability map that defines a probability of each pixel in the image being a background pixel; (f) determining a blurring radius for each pixel based on its probability of being a background pixel; and (g) blurring each pixel in the image using the blurring radius for each pixel to create an output image with a blurred background.