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The everchanging Sky-Tower - an apparent giant.

Dietrich S Schwarzkopf, Annelise Kolf1, Cathy Lai1

  • 1University of Auckland, Aotearoa, New Zealand.

Perception
|December 22, 2023
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Summary
This summary is machine-generated.

The Sky-Tower in Auckland sometimes appears to change size due to visual illusions. This study investigates the causes of these size misperceptions to improve understanding and safety.

Keywords:
perceptionscene perceptionshapes/objectsspatial vision

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Area of Science:

  • Optics
  • Visual Perception
  • Architectural Psychology

Background:

  • The Sky-Tower is a prominent landmark in Auckland, New Zealand.
  • Anecdotal reports suggest its apparent size fluctuates, causing perceptual distortions.

Purpose of the Study:

  • To characterize the visual illusion of apparent size fluctuation of the Sky-Tower.
  • To investigate the underlying causes of these size misperceptions.

Main Methods:

  • Observational analysis of the Sky-Tower from various vantage points.
  • Subjective reports and potential correlation with environmental factors.
  • Geometric and optical analysis of visual perception.

Main Results:

  • Confirmed that the Sky-Tower can appear significantly smaller from certain viewing angles.
  • Identified specific geometric and atmospheric conditions contributing to the illusion.
  • Quantified the degree of perceived size change.

Conclusions:

  • The apparent size changes of the Sky-Tower are a demonstrable visual phenomenon.
  • Understanding this illusion is crucial for public safety, especially for drivers.
  • Further research can refine the predictive models for such perceptual distortions.