UNIT 5 & UNIT 6 Flashcards
Chromatic colours
some wavelengths reflect more than others
achromatic colours
all wavelengths reflect similarly
hue
dominant wavelengths
saturation
purity of light
brightness
intensity of light
protonopia
dichromatism disorder from blue to yellow middle gray
deuteranope
dichromatism disorder form blue to yellow middle 498 nm
tritanope
dichromatism disorder from blue to red middle 570nm
accommodation
changing the lens’s shape
-flat, relaxed, distance
-curved, contract, close
monocular and binocular
convergence
brain fusing both images of eyes together
-only binocular vision
occlusion
objects hiding
perpective convergence
parallel lines extend out and perceived to be getting closer
atmospheric perspective
distant objects less sharp and blue tint
texture gradient
elements seem more closely packed as distance increases
binocular disparity
image on each eye different, when they are at non-corresponding points of retina
horopter
imaginary curve where the point you are focusing on and all of the elements at the same distance are
crossed-disparity
object behind another
uncrossed disparity
objects on different locations and distances
stereopsis
perception of depth by binocular disparity
-bad visual conditions
binocular rivalry
2 images are too different creating an unstable situation
motion parallax
lateral movement of things in the retina
-closer things faster in the opposite direction
-dar items slower in same direction
accretion and deletion
as you move you see different parts of the partially hidden object
Ponzo illusion
a rail with two lines, the line at the top appears longer
Muller-Lyer Illusion
<-> // >-< longer line the one at the right
Moon illusion
moon in horizon larger (there is terrain) than high in the sky (empty background)