SYSTEMS AND METHODS FOR ILLUMINATION CORRECTION OF AN IMAGE
First Claim
1. A method for illumination correction of an image, the method comprising:
- receiving, using a computer, a color image and an infrared intensity image;
converting the color image to a colorspace image comprising a channel corresponding to a brightness value for each pixel;
comparing, for each pixel of the colorspace image, the brightness value of the pixel to a brightness threshold value; and
creating a hybrid intensity image by using a fusion formula based on the brightness value of a pixel of the colorspace image 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 not applying the fusion formula to each pixel with a brightness value lower than the brightness threshold value.
4 Assignments
0 Petitions
Accused Products
Abstract
An RGB color image and an infrared intensity image of a live video are received. The RGB color image is converted to a colorspace image comprising a channel corresponding to a brightness value. Each pixel of the converted colorspace image is evaluated to determine whether the brightness channel of the pixel exceeds a threshold value. If the brightness channel of the pixel exceeds the threshold value, the infrared intensity value of a corresponding pixel from the infrared intensity image is mixed into the pixel'"'"'s channel value that corresponds to brightness. The converted colorspace image is converted back to an RGB color image.
-
Citations
20 Claims
-
1. A method for illumination correction of an image, the method comprising:
-
receiving, using a computer, a color image and an infrared intensity image; converting the color image to a colorspace image comprising a channel corresponding to a brightness value for each pixel; comparing, for each pixel of the colorspace image, the brightness value of the pixel to a brightness threshold value; and creating a hybrid intensity image by using a fusion formula based on the brightness value of a pixel of the colorspace image 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 not applying the fusion formula to each pixel with a brightness value lower than the brightness threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A system, comprising at least one processor and memory, for illumination correction of an image, the system comprising:
-
a module for receiving a color image and an infrared intensity image; a module for converting the color image to a colorspace image comprising a channel corresponding to a brightness value for each pixel; a module for comparing, for each pixel of the colorspace image, the brightness value of the pixel to a brightness threshold value; and a module for creating a hybrid intensity image by using a fusion formula based on the brightness value of a pixel of the colorspace image 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 not applying the fusion formula to each pixel with a brightness value lower than the brightness threshold value. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A non-transitory computer readable medium carrying one or more instructions for illumination correction of an image, wherein the one or more instructions, when executed by one or more processors, causes the one or more processors to perform the steps of:
-
receiving a color image and an infrared intensity image; converting the color image to a colorspace image comprising a channel corresponding to a brightness value for each pixel; comparing, for each pixel of the colorspace image, the brightness value of the pixel to a brightness threshold value; and creating a hybrid intensity image by using a fusion formula based on the brightness value of a pixel of the colorspace image 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 not applying the fusion formula to each pixel with a brightness value lower than the brightness threshold value. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification