Image analysis – Pattern recognition – Feature extraction
Patent
1996-03-15
1998-09-15
Tran, Phuoc
Image analysis
Pattern recognition
Feature extraction
382249, G06K 948
Patent
active
058091696
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.
REFERENCES:
Amir et al. "Using Dynamic Programming for Minimizing the Energy of Active Contour in the Presence of Hard Constraints" 1988 IEEE.
Cheong, C.K. et al, "Structural Edge Detection Based on Fractal Analysis for Image Compression", IEEE Int vol. 5, 10 May 1992, San Diego, CA, USA, pp. 2461-2464.
Bourissou A. eet al, "A Multifractal Approach for Terrain Characterization and Classification on SAR Images", IGARSS '94: International Geoscience and Remote Sensing Symposium. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Intnterpretation, vol. III, 8 Aug. 1994, Pasadena, CA pp. 1609-1611.
Renouard Frederic
Rezzouk Jamal
Alcatel Alsthom Compagnie Generale d'Electricite
Tran Phuoc
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