A new method to analyse the perception of size

Martín Pereda, José Antonio and González Marcos, Ana (2001). A new method to analyse the perception of size. In: "Applications of Digital Image Processing XXIV", 29/07/2001, San Diego, CA, USA.


Title: A new method to analyse the perception of size
  • Martín Pereda, José Antonio
  • González Marcos, Ana
Item Type: Presentation at Congress or Conference (Article)
Event Title: Applications of Digital Image Processing XXIV
Event Dates: 29/07/2001
Event Location: San Diego, CA, USA
Title of Book: Proceedings of SPIE
Date: 7 December 2001
Volume: 4472
Freetext Keywords: Brain ; Nerve ; Optical fibers ; Retina
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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In living bodies, the correct perceptual representation of size constancy requires that an object's size appear the same when it changes its location with respect to the observer. At the same time, it is necessary that objects at different locations appear to be the same size if they are. In order to do that, the perceptual system must recover from the stimuli impinging on the individual, from the light falling on the retina, a representation of the relative sizes of objects in the environment. Moreover, at the same time, image perception is related to another type of phenomena. It corresponds to the well known perceptual illusions. To analyze this facts, we propose a system based on a particular arrays of receptive points composed by optical fibers and dummy fibers. The structure is based on the first layers of the mammalians primary visual cortex. At that part of the brain, the neurons located at certain columns, respond to particular directions. This orientation changes in a systematic way as one moves across the cortical surface. In our case, the signals from the above-mentioned array are analyzed and information concerning orientation and size of a particular line is obtained. With this system, the Muelle-Lyer illusion has been studied and some rules to interpret why equal length objects give rise to different interpretations are presented.

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Item ID: 23004
DC Identifier: http://oa.upm.es/23004/
OAI Identifier: oai:oa.upm.es:23004
Deposited by: Biblioteca ETSI Telecomunicación
Deposited on: 13 Mar 2014 06:47
Last Modified: 21 Apr 2016 21:07
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