1. Texture-shading flow interactions and perceived reflectance.

    Journal of Vision 14(7) (2014) PMID 24891438

    The appearance of surface texture depends on the identification of edge contours in an image generated by local variations in reflectance. These edges in the image need to be distinguished from diffuse shading gradients caused by the interaction of light with surface relief. To understand how th...
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  2. Comparing subjective contours for Kanizsa squares and linear edge alignments ('New York Titanic' figures).

    Perception 43(9):977 (2014) PMID 25420336

    One current view is that subjective contours may involve high-level detection of a salient shape with back propagation to early visual areas where small receptive fields allow for scrutiny of relevant details. This idea applies to Kanizsa-type figures. However, Gillam and Chan (2002 Psychologica...
  3. Comparing subjective contours for Kanizsa squares and linear edge alignments ('New York Titanic' figures).

    Perception 43(9):977 (2014) PMID 25420336

    One current view is that subjective contours may involve high-level detection of a salient shape with back propagation to early visual areas where small receptive fields allow for scrutiny of relevant details. This idea applies to Kanizsa-type figures. However, Gillam and Chan (2002 Psychologica...
  4. Comparing subjective contours for Kanizsa squares and linear edge alignments ('New York Titanic' figures).

    Perception 43(9):977 (2014) PMID 25420336

    One current view is that subjective contours may involve high-level detection of a salient shape with back propagation to early visual areas where small receptive fields allow for scrutiny of relevant details. This idea applies to Kanizsa-type figures. However, Gillam and Chan (2002 Psychologica...
  5. The dark side of gloss.

    Nature Neuroscience 15(11):1590 (2012) PMID 23001059

    Our visual system relies on the image structure generated by the interaction of light with objects to infer their material properties. One widely studied surface property is gloss, which can provide information that an object is smooth, shiny or wet. Studies have historically focused on the role...
  6. The dark side of gloss.

    Nature Neuroscience 15(11):1590 (2012) PMID 23001059

    Our visual system relies on the image structure generated by the interaction of light with objects to infer their material properties. One widely studied surface property is gloss, which can provide information that an object is smooth, shiny or wet. Studies have historically focused on the role...
  7. The Perception and Misperception of Specular Surface Reflectance

    Current Biology 22(20):1909 (2012)

    The amount and spectral content of the light reflected by most natural surfaces depends on the structure of the light field, the observer’s viewing position, and 3D surface geometry, particularly for specular (glossy) surfaces. A growing body of data has demonstrated that perceived sur...
  8. The perception and misperception of specular surface reflectance.

    Current Biology 22(20):1909 (2012) PMID 22959347

    The amount and spectral content of the light reflected by most natural surfaces depends on the structure of the light field, the observer's viewing position, and 3D surface geometry, particularly for specular (glossy) surfaces. A growing body of data has demonstrated that perceived surface gloss...
  9. Coupled computations of three-dimensional shape and material

    Current Biology (1998)

    Retinal image structure arises from the interaction between a surface’s three-dimensional shape, its reflectance and transmittance properties, and the surrounding light field. Any local image structure can be generated by an infinite number of different combinations of surface properti...