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Texture perception, one step forward beyond the ring model| old_uid | 14526 |
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| title | Texture perception, one step forward beyond the ring model |
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| start_date | 2014/10/22 |
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| schedule | 14h30-15h15 |
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| online | no |
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| summary | The "ring" model was a successful attempt to account for experimental observations about the processing of orientation detection by the visual cortex V1 area, using the mean field equations of Wilson and Cowan. More recently, extensions of the ring model to other features such as spatial frequency or contrast have been proposed. I present such a model where the orientation is replaced by the "structure tensor", an object which has long been known from engineers in image processing. This concept was applied to texture perception by O. Faugeras, G. Faye and PC. I introduce the model and its analysis and discuss its relevance to texture perception theory. |
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| responsibles | Petitot |
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