• Title/Summary/Keyword: a Continuous Virtual Contour

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A Visual Model for the Perception of the Optical illusions from Discrete Dot Stimuli (이산 도트 자극에서 시각적 착시를 인식하는 시각 모델)

  • Jung, Eun-Hwa;Hong, Keong-Ho
    • The KIPS Transactions:PartB
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    • v.10B no.6
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    • pp.639-646
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    • 2003
  • This paper proposes a neural network model for extracting optical illusions produced by a sequence of discontinuous dot stimuli. The proposed model is based on visual cell's characters founded by visual information processing path. This study approaches on the basis of physiological observation of the perceptual phenomena that some simple ways of discrete dots are perceived as a continuous virtual contour rather than as separate dots. This paper presents the implementation of the optical illusions from discrete dot stimuli that are composed of virtual polygons from 6 to 10 dots. This experimental data are similar to those of Smith & Vos's physiological experiments. The proposed model shows that it can extract continuous illusion contours from discrete dot stimuli successfully.

The Perception of Virtual lines from Discrete Dot Stimuli Using Optical Neural Field (시각 신경계 개념을 이용한 이산적인 도트 자극으로부터 가상선 인식)

  • 정은화;김욱현
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.33B no.11
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    • pp.150-158
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    • 1996
  • Physiological observations reported and the perceptual phenomena that some simple arrays of discrete dots are perceived as a continuous curve, and others are perceived as an angular contour or as consisting of separate goups of dots. The perception of continuous curves versus discondinuous angles is mainly determined by the relative orientations of the dots, i.e., by the angles between sucessive virtual lines, whereas the length of the virtual lines gives little influence. It is important that the perception of dot stimuli is presented by vitual lines between dots in visual information processing. In this paper, on the basis of these facts of physiological observations, some experimental results on the perception of visual lines form dot stimuli are shown. Triples of the dots used in the experiment are similar to those of smith & Vos' physiological experiments.

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