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Seeing a Triangle in a 3d Scene Monocularly and Binocularly

Author

Listed:
  • Vasily Minkov

    (National Research University Higher School of Economics)

  • Tadamasa Sawada

    (National Research University Higher School of Economics)

Abstract

Theoretical understanding of a visual stimulus in a psychophysical experiment is critical for controlling the experiment and for interpreting its results. This fact encourages vision scientists to use “simple” visual stimuli. A triangle in a 3D scene is one of the simplest stimuli for studying 3D perception. In this study, we analyzed geometrical properties of a relation between the triangle and its retinal image using a computer algorithm. Based on the analysis, we discuss validity of results of past studies that used triangles as their visual stimuli.

Suggested Citation

  • Vasily Minkov & Tadamasa Sawada, 2018. "Seeing a Triangle in a 3d Scene Monocularly and Binocularly," HSE Working papers WP BRP 91/PSY/2018, National Research University Higher School of Economics.
    • Handle: RePEc:hig:wpaper:91psy2018
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    File URL: https://wp.hse.ru/data/2018/08/27/1154689700/91PSY2018.pdf
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    Cited by:

    1. Tadamasa Sawada, 2019. "A Computational Model that recovers depth from stereo-input without using any oculomotor information," HSE Working papers WP BRP 106/PSY/2019, National Research University Higher School of Economics.

    More about this item

    Keywords

    shape constancy; shape ambiguity; visual space; Euclidean geometry; non-Euclidean geometry; binocular disparity; P3P problem.;
    All these keywords.

    JEL classification:

    • Z - Other Special Topics

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