Method of extracting contours using multifractal analysis
First Claim
1. Method of extracting a contour of a contrasted area in a digitized image made up of pixels having different intensity levels defining said contrasted area, said method being based on minimizing the energy of an initial active contour to which are applied stresses derived from a potential image obtained by processing said image, wherein said potential image is obtained from a multifractal analysis of said image so that each element of said potential image is representative of a local fractal dimension in the locality of a corresponding pixel in said image.
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Abstract
A method of extracting a contour of a contrasted area in a digitized image made up of pixels having different intensity levels defining the contrasted area is based on minimizing the energy of an initial active contour to which are applied stresses derived from a potential image obtained by processing the image. The potential image is obtained from a multifractal analysis of the image so that each element of the potential image is representative of a local fractal dimension in the locality of a corresponding pixel in the image. This improves the behavior of the active contour when it is deformed by the stresses.
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Citations
5 Claims
- 1. Method of extracting a contour of a contrasted area in a digitized image made up of pixels having different intensity levels defining said contrasted area, said method being based on minimizing the energy of an initial active contour to which are applied stresses derived from a potential image obtained by processing said image, wherein said potential image is obtained from a multifractal analysis of said image so that each element of said potential image is representative of a local fractal dimension in the locality of a corresponding pixel in said image.
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