Gestalt Perception For Decomposition of Images Rahul Meena Advisor - - PowerPoint PPT Presentation

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Gestalt Perception For Decomposition of Images Rahul Meena Advisor - - PowerPoint PPT Presentation

Sep 03, 2022 274 likes •434 views

Gestalt Perception For Decomposition of Images Rahul Meena Advisor : Amitabha Mukherjee Introduction What does Gestalt mean? form, shape, pattern What does Gestalt theory mean? described in 1910 perceptual theory for

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Gestalt Perception For Decomposition

  • f Images

Rahul Meena Advisor : Amitabha Mukherjee

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Introduction

  • What does Gestalt mean?

– form, shape, pattern

  • What does Gestalt theory mean?

– described in 1910 – perceptual theory for perceptual organisation – explains how to we perceive and recognise patterns – “whole is more than the sum of their parts” (Kohler,1920) – Six main factors

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Introduction cont.

  • Proximity
  • Similarity

Image source: Dejan Todorovic (2008) Gestalt principles. Scholarpedia, 3(12):5345.

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Introduction cont.

  • Closure
  • Symmetry

The Kanizsa Triangle

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Introduction cont.

  • Common Fate/Motion

Image source: Dejan Todorovic (2008) Gestalt principles. Scholarpedia, 3(12):5345.

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Introduction cont.

  • Common Fate/Motion

Image source: Dejan Todorovic (2008) Gestalt principles. Scholarpedia, 3(12):5345.

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SLIDE 7

Introduction cont.

  • Continuity

Image source: Dejan Todorovic (2008) Gestalt principles. Scholarpedia, 3(12):5345.

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Motivation

  • Robots should see the world the way humans do
  • Implementation of gestalt principles for object

segmentation

Image Source: Learning to apply Gestalt Laws. Amit Barjatya, Dipendra Kumar Misra, Dr. Amitabh Mukerjee.

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Experiment

  • How we decompose parts of an image

The Rubin Vase

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My Approch

  • Eye gaze tracking system

Eye movement first 2 seconds (Yarbus, 1967)

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My Approach cont.

  • 10 images per subject
  • 5 seconds per image
  • Subjects will be asked to remember what they

decomposed in each image

  • Analyze the answer with the tracked image to

see which gestalt law is prefered for the decomposition

  • Image set made using MS Paint/word
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My Approach cont.

  • How past experience affects the

decomposition

Image source: Touretzky, David S., and Ethan Tira-Thompson. "Gestalt perception." (2008).

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References

  • Dejan Todorovic (2008) Gestalt principles. Scholarpedia,

3(12):5345.

  • Touretzky, David S., and Ethan Tira-Thompson. "Gestalt

perception." (2008)

  • Implementation of Gestalt Principles for Object Segmentation,

Andreas Richtsfeld, Michael Zillich and Markus Vincze, Automation and COntrol Institute(ACIN), Vienna University of Technology, 2012

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Thank You

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Some Images