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12 July 2011 Unsupervised segmentation based on Von Mises circular distributions for orientation estimation in textured images
Jean-Pierre Da Costa, Frédéric Galland, Antoine Roueff, Christian Germain
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Proceedings Volume 8000, Tenth International Conference on Quality Control by Artificial Vision; 80000L (2011) https://doi.org/10.1117/12.890888
Event: 10th International Conference on Quality Control by Artificial Vision, 2011, Saint-Etienne, France
Abstract
This paper deals with textured images and more particularly with directional textures. We propose a new parametric technique to estimate the orientation field of textures. It consists in partitioning the image into regions with homogeneous orientations, and then to estimate the orientation inside each of these regions, which allows us to maximize the size of the samples used to estimate the orientation without being corrupted by the presence of frontiers between regions. Once estimated the local - hence noisy - orientations of the texture using small filters (3×3 pixels), image partitioning is based on the minimization of the stochastic complexity (Minimum Description Length principle) of the orientation field. The orientation fluctuations are modeled with Von Mises probability density functions, leading to a fast and unsupervised partitioning algorithm. The accuracy of the orientations estimated with the proposed method is then compared with other approaches on synthetic images. An application to the processing of real images is finally addressed.
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Jean-Pierre Da Costa, Frédéric Galland, Antoine Roueff, and Christian Germain "Unsupervised segmentation based on Von Mises circular distributions for orientation estimation in textured images", Proc. SPIE 8000, Tenth International Conference on Quality Control by Artificial Vision, 80000L (12 July 2011); https://doi.org/10.1117/12.890888
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KEYWORDS
Image segmentation
Image analysis
Chromium
Strontium
Electronic filtering
Image filtering
Statistical analysis
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