Nonlinear attractive force model for perceptual clustering and geometrical illusions

Hiroyuki Matsunaga, Kiichi Urahama

    Research output: Contribution to journalArticlepeer-review


    A mathematical model based on an optimization formulation is presented for perceptual clustering of dot patterns. The features in the present model are its nonlinearity enabling the model to reveal hysteresis phenomena and its scale invariance. The clustering of dots is given by the mutual linking of dots by virtual lines. Every dot is assumed to be perceived at locations displaced from their original places. It is exemplified with simulations that the model can produce a hierarchical clustering of dots by variation in thresholds for the wiring of virtual lines and also the model can additionally reproduce some geometrical illusions semiquantitatively. This model is further extended for perceptual grouping in line segment patterns and geometrical illusions observed in those patterns are reproduced by the extended model.

    Original languageEnglish
    Pages (from-to)1587-1594
    Number of pages8
    JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
    Issue number10
    Publication statusPublished - 1996

    All Science Journal Classification (ASJC) codes

    • Electrical and Electronic Engineering
    • Hardware and Architecture
    • Information Systems


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