December 2011
Volume 11, Issue 15
OSA Fall Vision Meeting Abstract  |   December 2011
Visual Perception of Surfaces with Transparent Layers
Author Affiliations
  • Kazuki Yoshida
    Tokyo Institute of Technology, Information Processing
  • Isamu Motoyoshi
    Tokyo Institute of Technology, NTT Communication Science Laboratories, formation Processing
  • Kazuho Fukuda
    Tokyo Institute of Technology, Information Processing
  • Keiji Uchikawa
    Tokyo Institute of Technology, Information Processing
Journal of Vision December 2011, Vol.11, 65. doi:
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      Kazuki Yoshida, Isamu Motoyoshi, Kazuho Fukuda, Keiji Uchikawa; Visual Perception of Surfaces with Transparent Layers. Journal of Vision 2011;11(15):65.

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      © ARVO (1962-2015); The Authors (2016-present)

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Recent psychophysical studies investigate visual processings underlying the perception of homogeneously transparent, or translucent, materials such as glasses and milk (Fleming & Buelthoff, 2005; Motoyoshi, 2010). Here, we explored critical image features that support visual perception of a surface with multiple layers like human skin and foods, in which an opaque body is covered with a transparent material. We first created real objects that consisted of an opaque urethane body covered (vacuum-formed) by a transparent sheet of polyvinyl medium, and found that the transparent layer was perceived only when the object had sharp bumps or when the air was occasionally interleaved between the inner body and the superficial layer. We next used computer-generated images to systematically examine the effects of physical parameters including color, glossiness, transparency, refraction, and thickness of the superficial layer. Observations with these images revealed at least three parameters that might be important for perceiving the transparent layer; (1) visible separation between the outside edge of the superficial layer and that of the opaque body, (2) specular highlights on the outer layer, (3) color fluctuations within the object image. We speculate that appropriate relationships between them support visual impression of transparent layers.


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