Visual effects Flashcards
Flashed Face Distortion Effect
Optical illusion causing faces just outside the direct line of sight to appear grotesque.
Pareidolia
Finding faces in everything
Iris
Colored part around pupil which contracts and expands to control light
Lens
Transparent film behind pupil which focuses light
Retina
inner surface of eye which captures image
Fovea
Small area of inner eye surface directly behind lens and pupil which perceives detail
Optic Nerve
Stretches from lower back of the eye to the brain to transmit signals, also creates a small “blind spot” in the Retina surface
Acuity
The level of detail rendered at different places in the cone of vision.
Sensitivity
The range of luminance perception in humans, measured in mili-Lamberts (Range is from 10^-6 to 10^10)
Rods
Light receptors in the retina which are more sensitive to low light
Cones
Light receptors in the retina which perceive color
Photosensitive Ganglion Cells
Responsive to light and capable of adjusting iris size and affecting circadian rhythms eve in eyes lacking rods and cones
Chromatic Blurring
Unequal refraction reduces acuity, but filtering out one end of the spectrum can help
Saccadic Eye Movement
Eyes don’t take pictures like a camera, they scan them like the scanners downstairs
Saccades
abrupt jumps from one point to another in a scene, the brain filters out retinal images between these 0.5 second jumps.