Term
|
Definition
focus on info in retinal image correlated with depth in the scene
learn connection b/t info and depth in real world
association becomes automatic through repeated exposure |
|
|
Term
|
Definition
| the change in the shape of the lense tells the brain how far away something is |
|
|
Term
|
Definition
when an obj is far away the muscles pull the lense
near: relax
far: pull |
|
|
Term
|
Definition
each eye has a slight diff view of the world.
brain compare both eye's data to compute relative depth.
amount of disparity indicates how far an obj is from the horopter
|
|
|
Term
|
Definition
| the farthest the eyes can be in divergence |
|
|
Term
|
Definition
imaginary surface that passes through the point of fixation
wherever youre looking is the horopter
also creates corresponding points on the retina |
|
|
Term
|
Definition
crossed: points closer than the horopter
fall on outer part of the retina
uncrossed: points farther than the horopter
fall on inner part of the retina |
|
|
Term
|
Definition
bigger disparity: farther from the horopter
smaller disparity: closer to the horopter |
|
|
Term
|
Definition
| depth info provided by binocular disparity |
|
|
Term
|
Definition
two overlapping images
image for left eye = red
right eye = blue |
|
|
Term
|
Definition
| point on one retina must be matched with point on other retina |
|
|
Term
|
Definition
| diff in speed of movement of near obj vs far away obj |
|
|
Term
|
Definition
| deletion and acceleration of texture as we move provides depth info |
|
|
Term
|
Definition
| taking away texture from the behind background |
|
|
Term
|
Definition
| adding texture to the behind background |
|
|
Term
|
Definition
| an obj that partially covers another obj is closer |
|
|
Term
|
Definition
| the obj below is closer than the one farther away |
|
|
Term
|
Definition
| when obj are equal size the one in front will take up more space in your field of vision |
|
|
Term
|
Definition
| knowlege about the obj's size will influence the judgement of its distance |
|
|
Term
linear perspective/
perspective convergence |
|
Definition
| parallel lines appear to come together in the distance |
|
|
Term
| atmospheric perspectivity |
|
Definition
obj in the distance have a fuzzy blue tint
ie mountains |
|
|
Term
|
Definition
elements become denser with distance
elements become smaller with distance |
|
|
Term
|
Definition
provides perception of obj shape/depth
and position/height above the ground |
|
|
Term
|
Definition
obj size
distance
obj size on retina is small |
|
|
Term
| when held at arms length what degree of your field of vision does your thumb nail take up? |
|
Definition
|
|
Term
distal stimulus
proximal stimulus
perception |
|
Definition
D- constant properties (physical size)
Pr- varying properties (size of obj on retina relative to distance away in world)
Per- constant properties (physical size of the obj) |
|
|
Term
| size-distance scaling equation |
|
Definition
S = K (R X D)
Perceived size = retinal size X distance
perceived size = constant size
|
|
|
Term
|
Definition
| perception of obj size remains constant even if its size on the retina changes |
|
|
Term
|
Definition
| when retinal size is constant, perceived size will change depending on distance of projection |
|
|
Term
|
Definition
non-veridical perception
misapplication of size/distance relationship |
|
|
