Key Words/Phrases/Notes/Quotes from the lecture:

• The Visual System
• Shares works of art that are important because they help us understand how we see; low-level vision.
  • Line Drawings
• First and most fundamental stage in visual processing
  • Center Surround Antagonism
• “Vision is information processing, not image transmission.”
• “All your visual system cares about is contrast.”
• Your visual system has to compute distance and depth (3d) using a number of cues:
  • Relative motion
  • Shading
  • Perspective
  • Occlusion
  • Stereopsis
• “Colors are only symbols. Reality is to be found in luminance alone.” – Pablo Picasso
• Color and Luminance do different things
• “I do not paint things; I paint only the difference between things.” Henry Matisse (vision is information processing)
• 45:00
  • “You move your eyes 2-3x a second. So your retinal images are constantly changing. How do you knit this together into a constant perception?”
    • Fading + cut in motion (film editing)
• ***50:44 is on Stereopsis (but it’s helpful to have 3d glasses to watch)
  • “If you [have stereopsis and] you go to a museum and want to fall into a painting, close one eye.”
  • “Stereo-matching is a difficult problem.
    • Cyan to right, white to left, vice versa
    •  Steps in an escalator – have slats that you can misread by mistake at different distances (I think this is a good example of a moment when someone experiences stereoblindness)
    • Klimt had no Stereopsis!!
    • “You cannot have stereopsis if your eyes are misaligned because the computations for depth begin in early visual cortex where they are mapped retinotopically, that is across the visual field, and if your two eyes are pointing in two different directions the information from two eyes from the visual field don’t even end up in the visual cortex so you don’t have any depth perception.”
• Dyslexic Brain Explored
• Stereoblindness in famous artists
• “Stereoblindness may not be only a disability but an asset for an artist”