Artificial visual orientation map implemented as an inhomogeneous active resistor mesh

Active resistor meshes, characterised by an inhomogeneous anisotropic pattern of local interconnections, present node voltage responses to current impulses at the nodes that efficiently emulate signal processing functions of visual cortex neurons, organised into orientation maps. Experiments with artificial and natural textured images validated the approach.

[1]  Carver A. Mead,et al.  Neuromorphic electronic systems , 1990, Proc. IEEE.

[2]  D. Hubel,et al.  Receptive fields, binocular interaction and functional architecture in the cat's visual cortex , 1962, The Journal of physiology.

[3]  Anil K. Jain,et al.  Unsupervised texture segmentation using Gabor filters , 1990, 1990 IEEE International Conference on Systems, Man, and Cybernetics Conference Proceedings.

[4]  C. Koch,et al.  Isotropic connections generate functional asymmetrical behavior in visual cortical cells. , 1991, Journal of neurophysiology.

[5]  B. Dow,et al.  Horizontal organization of orientation-sensitive cells in primate visual cortex , 1989, Biological Cybernetics.