Abstract
Digital image-processing systems combined with color raster television technology are opening new worlds for the visual psychophysicist. Some of the inherent limitations and practical hazards of these technologies are explored. Techniques for circumventing some of the current limitations are presented, especially with regard to the issue of real-time variation of visual images.
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Adelson, E. H., &Bergen, J. R. (1985). Spatiotemporal energy models for the perception of motion.Journal of the Optical Society of America, A,2, 284–299.
Anstis, S., &Cavanagh, P. (1983). A minimum motion technique for judging equiluminance. In J. D. Mollon & L. T. Sharpe (Eds.),Colour vision physiology and psychophysics (pp. 155–166). London: Academic Press.
Cavanagh, P., Maurer, D., Lewis, T., MacLeod, D. A. I., &Mather, G. (1986). Computer-generated screening test for colorblindness.Color Research & Applications,11, S63-S66.
Citron, M. C., &Emerson, R. C. (1983). White noise analysis of cortical directional selectivity in cat.Brain Research,279, 271–277.
Cowan, W. B. (1983). Discreteness artifacts in raster display systems. In J. D. Mollon & L. T. Sharpe (Eds.),Colour vision physiology and psychophysics (pp.,145–153). London: Academic Press.
Daugman, J. G. (1985). Image analysis by local 2-D spectral signatures.Journal of the Optical Society of America, A,2, 74.
Green, D. M. (1976).An introduction to hearing. Hillsdale, NJ: Erlbaum.
Haber, R. N. (1986). Flight simulation.Scientific American,255(1), 96–103.
Kelly, D.U., &Savoie, R. E. (1973). A study of sine-wave contrast sensitivity by two psychophysical methods.Perception & Psychophysics,14, 313–318.
Land, E. H. (1974). The retinex theory of colour vision.Proceedings of the Royal Institution of Great Britain,47, 23–58.
MacLeod, D. A. I. (1986). Computer controlled color displays in vision research: Possibilities and problems.Color Research & Applications,11, S45-S46.
McCann, J. J., McKee, S. P., &Taylor, T. H. (1976). Quantitative studies in retinex theory.Vision Research,16, 445–448.
McKee, S. P., &Welch, L. (1985). Spatial recruitment in the discrimination of velocity.Journal of the Optical Society of America, A,2, 243–251.
Mulligan, J. B. (1986). Minimizing quantization errors in digitally-controlled CRT displays.Color Research & Applications,11,S47-S51.
Pinker, S. (1984). Visual cognition: An introduction.Cognition,18, 1–63.
Robertson, B. (1986). Pixar goes commercial in a new market.Computer Graphics World,9(6), 61–70.
Rodieck, R. W. (1983). Raster-based colour stimulators. In J. D. Mollon & L. T. Sharpe (Eds.),Colour vision physiology and psychophysics (pp. 131–144). London: Academic Press.
Savoy, R. L. (1980).Visual studies with low frequency gratings (Unpublished doctoral dissertation) Harvard University, Cambridge, MA.
Savoy, R. L. (1984). “Extinction” of the McCollough effect does not transfer interocularly.Perception & Psychophysics,36, 571–576.
Savoy, R. L., &McCann, J. J. (1975). Visibility of low-spatial-frequency sine-wave targets: Dependence on number of cycles.Journal of the Optical Society of America,65, 343–350.
Sperling, G. (1980). Bandwidth requirements for video transmission of American Sign Language and finger spelling.Science,210, 797–799.
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The ideas presented in this paper developed out of the pleasurable and stimulating process of performing experiments with, among others, John McCann of Polaroid Corporation, Suzanne McKee of Smith-Kettlewell, Eugene Switkes of the University of California at Santa Cruz, Jonathan Frankle of the University of California at Berkeley, and Michael Burns and Edwin Land of the Rowland Institute I thank the Rowland Institute for Science for its ongoing support
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Savoy, R.L. Making quantized images appear smooth: Tricks of the trade in vision research. Behavior Research Methods, Instruments, & Computers 18, 507–517 (1986). https://doi.org/10.3758/BF03201422
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DOI: https://doi.org/10.3758/BF03201422