Effects Of Lateral Subtractive Inhibition Within The Context Of A Polar-Log Spatial Coordinate Mapping

Matthew G. Luniewicz; Richard A. Messner

doi:10.1117/12.960259

27 March 1989 Effects Of Lateral Subtractive Inhibition Within The Context Of A Polar-Log Spatial Coordinate Mapping

Matthew G. Luniewicz, Richard A. Messner

Proceedings Volume 1002, Intelligent Robots and Computer Vision VII; (1989) https://doi.org/10.1117/12.960259
Event: 1988 Cambridge Symposium on Advances in Intelligent Robotics Systems, 1988, Boston, MA, United States

Abstract

A simulation implementing Lateral Subtractive Inhibition (LSI) in a 2D coordinate space was developed providing the means to determine the effects of varying fundamental parameters of the operation. The strength of inhibition between receptors (sensor elements) as a function of distance is variable (the weighting function), as is the absolute size of the neighborhood of receptor interaction. Several different methods of performing the LSI operation were looked at before finding a method that was realizable in a computer simulation. The problems of implementing LSI in software are described in some detail. Application of LSI to a polar-log mapped coordinate system is considered in more than one aspect. The operation can be applied before or after the mapping, with weights dependent on either linear or exponential distances between receptors. The differences between these methods are examined. A set of experiments was devised in order to determine the usefulness of LSI to extract edge and curvature information.

Citation Download Citation

Matthew G. Luniewicz and Richard A. Messner "Effects Of Lateral Subtractive Inhibition Within The Context Of A Polar-Log Spatial Coordinate Mapping", Proc. SPIE 1002, Intelligent Robots and Computer Vision VII, (27 March 1989); https://doi.org/10.1117/12.960259

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