Supervised edge detection using fractal signatures
First Claim
Patent Images
1. A system, comprising:
- a fractal signature module to determine a fractal signature of each pixel of a first set of edge pixels of an image, and of a first pixel of the image outside of the first set of edge pixels;
a threshold module to determine a first fractal signature threshold from the fractal signatures of the first set of edge pixels; and
an edge pixel identification module to compare the fractal signature of the first pixel to the first fractal signature threshold, and selectively identify the first pixel as an edge pixel based on the comparison.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and systems to identify image pixels as edge pixels using fractal signatures associated with the image pixels. Fractal signatures may include one or more of a variety of fractal dimensions. A fractal dimension of a pixel may be generated from an array of pixels that include the pixel, from x and y coordinates and one or more of luminosity values and color values associated with pixels in the array of pixels. Pixels may be identified as edge pixels when their corresponding fractal signatures are equal to or greater than a fractal signature threshold. The fractal signature threshold may be generated in a supervised fashion.
7 Citations
20 Claims
-
1. A system, comprising:
-
a fractal signature module to determine a fractal signature of each pixel of a first set of edge pixels of an image, and of a first pixel of the image outside of the first set of edge pixels; a threshold module to determine a first fractal signature threshold from the fractal signatures of the first set of edge pixels; and an edge pixel identification module to compare the fractal signature of the first pixel to the first fractal signature threshold, and selectively identify the first pixel as an edge pixel based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A non-transitory computer readable medium encoded with a computer program, including instructions to cause a processor to:
-
determine a fractal signature of each pixel of a first set of edge pixels of an image, and of a first pixel of the image outside of the first set of edge pixels; determine a first fractal signature threshold from the fractal signatures of the first set of edge pixels; compare the fractal signature of the first pixel to the first fractal signature threshold; and selectively identify the first pixel as an edge pixel based on the comparison. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A machine-implemented method, comprising:
-
determining a fractal signature of each pixel of a first set of edge pixels of an image, and of a first pixel outside of the first set of edge pixels; determining a first fractal signature threshold from the fractal signatures of the first set of edge pixels; comparing the fractal signature of the first pixel to the first fractal signature threshold; and selectively identifying the first pixel as an edge pixel based on the comparing. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification