Patent Document ID: 9008457
Application ID: 13149715
Patent Status: 1

Claim One:
1. A method for illumination correction of an image, the method comprising: receiving, using a computer, a color image, a depth image and an infrared intensity image; converting the color image to a colorspace image comprising a brightness channel corresponding to a brightness value for each pixel; based at least in part on the depth image, identifying pixels in the colorspace image that correspond to a user; comparing, for each pixel of the colorspace image corresponding to the user, the brightness value of the pixel to a brightness threshold value; and creating a hybrid intensity image of the user by using a fusion formula based on the brightness value of a pixel of the colorspace image corresponding to the user and an infrared intensity value of a corresponding pixel of the infrared intensity image by applying the fusion formula to each pixel with a brightness value greater than the brightness threshold value, and by using the brightness channel for each pixel with a brightness value lower than the brightness threshold value.