Sensory and physical determinants of perceived achromatic transparency.

What are the physical and sensory determinants of perceived transparency? To explore this question, we simulated pairs of physically different neutral density filters on a CRT and asked observers to match their perceived transparency. Matching was accomplished by adjusting one of two physically independent filter properties, reflectivity and inner transmittance. Results show that observers can make reliable matches through a linear trade-off of these two properties. In a separate experiment, observers matched the perceived contrast of the overlaid regions. The reflectivity and inner transmittance values for contrast matches are similar to those of perceived transparency matches, suggesting that perceived image contrast is the sensory determinant of perceived transparency. In variegated displays, neither Michelson contrast nor other standard contrast metrics predicts contrast appearance. When perceived transparency is plotted in terms of filter reflectance and filter transmittance, perceived transparency corresponds closely to filter transmittance.

[1]  P. Libby.  The Scientific American , 1881, Nature.

[2]  G. Brindley.  Physiology of the Retina and the Visual Pathway , 1960 .

[3]  R. W. Ditchburn.  Physiology of the Retina and Visual Pathway , 1961 .

[4]  S. A. Talbot.  Physiology of the retina and the visual pathway , 1961 .

[5]  Gunther Wyszecki,et al.  Color Science: Concepts and Methods, Quantitative Data and Formulae, 2nd Edition , 2000 .

[6]  J. Cohen,et al.  Color Science: Concepts and Methods, Quantitative Data and Formulas , 1968 .

[7]  F Metelli,et al.  The perception of transparency. , 1974, Scientific American.

[8]  Richard I. Ivry,et al.  The perception of transparency with achromatic colors , 1984, Perception & psychophysics.

[9]  E. Peli.  Contrast in complex images. , 1990, Journal of the Optical Society of America. A, Optics and image science.

[10]  B. Moulden,et al.  The Standard Deviation of Luminance as a Metric for Contrast in Random-Dot Images , 1990, Perception.

[11]  M. Georgeson,et al.  Perceived contrast of gratings and plaids: Non-linear summation across oriented filters , 1994, Vision Research.

[12]  E. Peli.  In search of a contrast metric: Matching the perceived contrast of gabor patches at different phases and bandwidths , 1997, Vision Research.

[13]  J. Parkkinen,et al.  Computational theory of color transparency: recovery of spectral properties for overlapping surfaces , 1999 .

[14]  Charles Chubb,et al.  Variance of high contrast textures is sensed using negative half-wave rectification , 2000, Vision Research.

[15]  Charles Chubb,et al.  Texture luminance judgments are approximately veridical , 2000, Vision Research.

[16]  M D'Zmura,et al.  The Colors Seen behind Transparent Filters , 2000, Perception.

[17]  F. Kingdom,et al.  Precision, accuracy, and range of perceived achromatic transparency. , 2001, Journal of the Optical Society of America. A, Optics, image science, and vision.

[18]  Manish Singh,et al.  Toward a perceptual theory of transparency. , 2002, Psychological review.

[19]  P. Bex,et al.  Spatial frequency, phase, and the contrast of natural images. , 2002, Journal of the Optical Society of America. A, Optics, image science, and vision.