Unit 3-4

Question 1

Two types of depth cues

Answer 1

Monocular cues and binocular cues

Question 2

Monocular depth cues

Answer 2

Only need one eye

Question 3

Binocular depth cues

Answer 3

How two eyes perceive depth

Question 4

Interposition

Answer 4

Monocular. Object is in front of another object.

Question 5

Linear perspective

Answer 5

Monocular. As straight lines converge, we perceive them as becoming more distant

Question 6

Relative size

Answer 6

Monocular. At different distances, objects of the same size look like they have different sizes.

Question 7

Size constancy

Answer 7

Monocular. Objects that move away from observer appear to become smaller (closer, larger) yet we know their actual size stays the same.

Question 8

Texture gradient

Answer 8

Monocular. Distant objects appear more packed than close objects

Question 9

Motion parallax

Answer 9

Monocular. Observer in motion sees that distant objects seem to move slower than closer objects

Question 10

Stereopsis (retinal disparity)

Answer 10

Binocular. Distance between eyes used to geometrically perceive distance.

Question 11

Convergence

Answer 11

Binocular. As objects are closer to the eyes, the eyes turn more towards each other

Question 12

Feature detection theory

Answer 12

All objects are composed of distinct parts and we recognize objects by these parts

Question 13

Geons

Answer 13

36 shapes that can be used to describe all objects. Made by Biederman.

Question 14

Gestalt psychology

Answer 14

How do we see a whole image from low-level vision and how do we go from low-level vision to high-level vision

Question 15

Gestalt psychology’s motto

Answer 15

The whole is more than the sum of its parts

Question 16

Gestalt principles

Answer 16

How people organize objects in vision

Question 17

Figure-ground principle

Answer 17

Observers separate objects between foreground and background (kissing faces)

Question 18

Similarity principle

Answer 18

Observers group like objects together

Question 19

Proximity principle

Answer 19

Observers group objects together that are close together

Question 20

Common region principle

Answer 20

Objects are grouped together that are enclosed in the same space

Question 21

Good continuation principle

Answer 21

People prefer to see continuous lines instead of sharp angles

Question 22

Closure principle

Answer 22

Mind fills in the gaps to see the whole (triangle)

Question 23

Good Gestalt principle

Answer 23

We prefer to see things as orderly, coherent, complete, and balanced

Question 24

Global precedence effect

Answer 24

See the global before the local

Question 25

Marr’s low-level vision

Answer 25

Edges, motion, and depth

Question 26

Marr’s high-level vision

Answer 26

Objects, faces

Question 27

Steven’s Power Law

Answer 27

Relationship between perceived stimulus intensity and objective intensity

Question 28

Structural theory

Answer 28

Features and their interrelations are taken into account in vision

Question 29

Template matching theory

Answer 29

Objects are recognized by templates from the memory and the closest template is what makes the identification

Question 30

Weber’s Law

Answer 30

Just noticeable difference of a stimulus’ intensity