Chapter 5 Outline


Transmission of Visual Signals

  • Overview of transmission steps
  • Availability and quality of ambient light
  • Contrast with background
  • Transmission from sender to receiver
  • Signal detectability

Coupling from the Medium to the Receptor

  • The evolution of light-collecting strategies
  • Transparent lenses
  • Focusing the light
  • Controlling the amount of entering light

Reception of Visual Signals

  • The visual pigment
  • Photoreceptor cells
  • The retina
  • Resolution and sensitivity
  • Field of view

Visual Processing

  • Color vision
  • Feature detectors
  • Depth perception
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