Kolesnik, M.M.KolesnikBarlit, A.A.Barlit2022-03-102022-03-102003https://publica.fraunhofer.de/handle/publica/34388710.1007/3-540-45103-X_32An iterative model for contrast detection, which accounts for the contrast invariance of orientation preference, has been recently suggested [16]. The work here extends the iterative model by incorporating a cross-oriented suppression of simple cells in the primary visual cortex (VI). The modified model has a better performance in terms of robustness to noise, generates sharper edge responses while suppressing weak edges, and converges faster on equilibrium. The model exhibits a higher level of contrast invariance of orientation preference generating a clear pattern of edges in natural images.en005006629400conference paper