Local Descriptor Groupings in Reinforcement Learning of Sensory - Motor Attention

Christin Seifert, Gerald Fritz, Lucas Paletta

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    Abstract

    Previous research on behavioural modelling of saccadic image interpretation (Henderson, 1982 Psychological Science 8 51 - 55) has emphasised the sampling of informative parts under visual attention to guide visual perception. We propose a system of sequential attention for object recognition that (i) groups n-tuples of local gradient based image descriptors (Lowe, 2004 International Journal of Computer Vision 60 91 - 110) being scale, rotation, and to high degree illumination tolerant, defining a vocabulary of prototypical code descriptors, (ii) selects only informative groupings for further processing, (iii) learns a predictive mapping from a current perceptual state in a Markov decision process to a next saccadic action, and (iv) present a model of object recognition being capable of integrating sequential information by minimization of entropy in the Bayesian modelling of object hypotheses. The innovative abstraction level of informative groupings provides perceptual meta-states in sensory-motor attention, enabling the learning of a purposeful grammar integrating atomic feature-saccade mappings into a meaningful recognition behaviour. We demonstrate highly accurate recognition of outdoor facades in a mobile vision application, using the sensory-motor context of trans-saccadic object recognition.
    Original languageEnglish
    Title of host publicationECVP 2006
    Subtitle of host publication29th European Conference on Visual Perception, St. Petersburg 20-25 August 2006, abstracts
    Place of PublicationLondon
    PublisherPion Ltd.
    Pages48-48
    Number of pages1
    Publication statusPublished - 1 Aug 2006
    Event29th European Conference on Visual Perception, ECVP 2006 - St. Petersburg, Russian Federation
    Duration: 20 Aug 200625 Aug 2006
    Conference number: 29

    Publication series

    NamePerception
    PublisherPion
    Volume35

    Conference

    Conference29th European Conference on Visual Perception, ECVP 2006
    Abbreviated titleECVP
    CountryRussian Federation
    CitySt. Petersburg
    Period20/08/0625/08/06

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    Seifert, C., Fritz, G., & Paletta, L. (2006). Local Descriptor Groupings in Reinforcement Learning of Sensory - Motor Attention. In ECVP 2006: 29th European Conference on Visual Perception, St. Petersburg 20-25 August 2006, abstracts (pp. 48-48). (Perception; Vol. 35). London: Pion Ltd..