Vis-CRF: A Simplified Filtering Model for Vision

Nasim Nematzadeh, David Powers, Trent Lewis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Over the last decade, a variety of new neurophysiological experiments have deepened our understanding about retinal cells functionality, leading to new insights as to how, when and where retinal processing takes place, and the nature of the retinal representation and encoding sent to the cortex for further processing. Based on these neurobiological discoveries, we provide computer simulation evidence to suggest that Geometrical illusions are explained in part, by the interaction of multiscale visual processing performed in the retina supporting previous studies [1, 2]. The output of our retinal stage model, named Vis-CRF which is a filtering vision model is presented here for a sample of Café Wall pattern and for an illusory pattern, in which the final percept arises from multiple scale processing of Difference of Gaussians (DoG) and the perceptual interaction of foreground and background elements.

Original languageEnglish
Title of host publication2020 Digital Image Computing
Subtitle of host publicationTechniques and Applications, DICTA 2020
Place of PublicationMelbourne, Australia
PublisherInstitute of Electrical and Electronics Engineers
Number of pages8
ISBN (Electronic)9781728191089
Publication statusPublished - 29 Nov 2020
Event2020 Digital Image Computing: Techniques and Applications, DICTA 2020 - Melbourne, Australia
Duration: 29 Nov 20202 Dec 2020

Publication series

Name2020 Digital Image Computing: Techniques and Applications, DICTA 2020


Conference2020 Digital Image Computing: Techniques and Applications, DICTA 2020


  • Café Wall illusion
  • Classical receptive fields
  • Cognitive systems
  • Difference of Gaussians
  • Edge map at multiple scales
  • Pattern recognition
  • Visual Perception


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