Global stability in nonlinear lateral inhibition

Gerard F. McLean; M. Ed Jernigan

doi:10.1117/12.24116

1 September 1990 Global stability in nonlinear lateral inhibition

Gerard F. McLean, M. Ed Jernigan

Proceedings Volume 1360, Visual Communications and Image Processing '90: Fifth in a Series; (1990) https://doi.org/10.1117/12.24116
Event: Visual Communications and Image Processing '90, 1990, Lausanne, Switzerland

Abstract

Pinter’s model of lateral inhibition using nonlinear local interactions adapts to local signal characteristics to perform range compression and edge enhancement. The model does this with no forced-choice or thresholding, making it suitable for implementation as a generalised image preprocessor. However, the global behaviour of the model is problematic, as its nonlinear and recurrent structure demands that iterative solution procedures be used. Using such techniques, the model proposed by Pinter has been shown to be extremely sensitive to parameter specifications, often providng unstable signal response. In this paper, we investigate the structure of alternatives to the Pinter model which include locally adaptive gain functions. We show that the alternative models display similar adaptive behaviour and decreased sensitivity to gain selection compared to the original Pinter model.

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Gerard F. McLean and M. Ed Jernigan "Global stability in nonlinear lateral inhibition", Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); https://doi.org/10.1117/12.24116

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KEYWORDS

Image processing

Visual process modeling

Data modeling

Systems modeling

Visual communications

Image enhancement

Signal processing

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