Vision Science 212E -- Spring 2002

Vision Sciences 212E
Lectures #3-#4
CO L OR V ISI O N

Spring 2002

Wednesday, 13th and 20th March
3:00-6:00 PM
394 Old Minor

Instructor: Gene Switkes Vision Sciences, UCB and Chemistry, UCSC
Office: 387D Old Minor
Phone: X 3-9289; (831) 459-2000
email gene@tritan.ucbso.berkeley.edu


On reserve in Optometry Library

  1. Human color vision, by Peter K. Kaiser and Robert M. Boynton, BF789.C7 K35 1996
  2. Foundations of vision, by Brian A. Wandell, QP475.W32 1995
  3. Human perception of objects: early visual processing of spatial form defined by luminance, color, texture, motion, and binocular disparity, by David Regan, QP491.R445 2000
  4. DeValois, R. L. and DeValois, K. (1975). Neural Coding of Color, Handbook of Perception. Vol 5 Seeing , E. C. Carterette and M. P. Friedman, eds. Academic Press:New York, pp. 117-166.

Relevant WWW Sites (selected)

  • Webvision: Kolb, Fernandez, and Nelson
  • CVRL: Stockman and Sharpe
  • Joy of Visual Perception: Peter Kaiser

    Topics to be covered (readings and WWW sites):

    1. Stimulus conditions (K & B; ch 3 and W ch 4.)

      1. Reflectance vs wavelength
      2. Illumination
         Illuminantion and Reflection: Brown University CS Applet
        Same illuminant, differing reflectances: Brown University CS Applet
        "RGB (insufficient ??)": Brown University CS Applet

    2. First and second-stage physiological mechanisms of color processing (first look)

      1. Visual transduction and photoreceptor spectra (K&B pp 121-162) ,[ WEBVISION ], [ CVRL ]
      2. Retinal wiring and Color opponent cells in LGN (Dev & DeV, pp 121-135; K&B pp. 262-285)
        [ WEBVISION-receptors ] [ WEBVISION-outer plexiform ], [ WEBVISION-ganglion ], [ WEBVISION-color ]

    3. ~ Trichromacy

      1. Color matching (K&B, pp 162-166; W pp 80-87) [ CVRL ]
      2. Univariance and metamers (K&B, pp 121-125) [ Brown University CS Applet ]
      3. Color spaces, CIE specification and color mixing in video displays (K&B Appendix) [ CIE Tables (discussions in "comments" are useful)]
      4. Cone and MBDKL color spaces (K&B Appendix)
      5. More than 3-pigments [ Looking for madam Tetrachromat ] [ Notes on the spectra of hybrid red-green pigments ]
        [ Jacobs, Primate photopigments and primate color vision ]

    4. Psychophysical phenomena and neural correlates

      1. Wavelength discrimination (K&B, pp. 311-321) [ Wright and Pitt ]
      2. Luminosity and brightness (K&B, pp. 357-374) [ Anstis-Cavanagh method (Applet by Scott Flinn, UBC) ]
      3. Color naming and unique hues (K&B, pp. 41-45; 253-254)
      4. Hue cancellation (K&B, pp. 254-257) [ Hurvich and Jameson ]

    5. Spatiochromatic vision (Regan pp. 207-266)

      1. Chromatic contrast
      2. Spatial and temporal contrast sensitivity functions (K&B, pp. 399-409)
      3. Parallel processing streams and cortical electrophysiology (K&B, pp. 285-304)
      4. Spatiochromatic visual evoked potentials

    6. Other phenomena associated with color vision

      1. Color constancy, simultaneous contrast, assimilation (K&B, pp. 51-54, 507-523) [ Assimilation ] [ color contrast ]
        [ more assimilation ]
      2. Bezhold-Brucke
      3. Benham's Wheel (disk, top, etc.) [ Exploratorium ] [ Krantz ]