Título:
A model of natural image edge co-occurrence in the rototranslation group
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Autor:
Sanguinetti, Gonzalo
Citti, Giovanna
Sarti, Alessandro
Citti, Giovanna
Sarti, Alessandro
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Tipo de documento:
Artículo
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Palabras clave:
Natural image statistics
Contours
Good continuation
Perceptual organization
Contours
Good continuation
Perceptual organization
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Año de publicación:
2010
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Resumen:
In this paper, we propose to model the edge information contained in natural scenes as points in the 3D space of positions and orientations. This space is equipped with a strong geometrical structure and it is identified as the rototranslation group. In this space, we compute a histogram of co-occurrence of edges from a database of natural images and show that it can be interpreted as a probability density function, expressed by the fundamental solution of a suitable Fokker Planck equation defined in the 3D structured space. Both estimated statistics and model predictions are reconsidered and compared with the partial gestalt association fields proposed by D. J. Field, A. Hayes, and R. F. Hess (1993). Finally, parametric identification allows to estimate the variance of the co-occurrence random process in natural images.
Descripción:
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ARVO
EN:
Journal of Vision, 2010, v. 10, no. 14
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Citación:
Sanguinetti, G, Citti, G, Sarti, A. “A model of natural image edge co-occurrence in the rototranslation group”. Journal of Vision, 2010, v. 10, no. 14. doi: 10.1167/10.14.37
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Licencia:
Licencia Creative Commons Atribución (CC – By 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| SCS10.pdf | — | 1.36 MB | Adobe PDF |