The Science of Data visualization


Pedro Cardoso-Leite

pedro.cardosoleite@uni.lu

Human Visual Perception

Felleman and Van Essen (1991)

The Unexpected Visitor.
Oil on canvas painting by Ilya Repin, 1884–88.
(Source: Courtesy of www.ilyarepin.org.)

Tasks

  1. Free examination
  2. Estimate the material circumstances of the family
  3. Give the ages of the people
  4. Surmise what the family had been doing before the arrival of the ‘unexpected visitor’
  5. Remember the clothes worn by the people
  6. Remember the position of the people and objects in the room
  7. Estimate how long the unexpected visitor had been away from the family

Modules and Automatic processing

seeing stuff that isn’t there

Kanizsa illusion

Automatic Reading

Color perception

Visual illusions

Attention

How do humans perceive graphs?

Neural recycling

Mapping of data to visual attributes

How do you decide
which visual attributes
to map to your data?

Quiz

1

2

3

4

5

6

7

8

9

10

Solutions

Vision psychophysics

Stevens’ Power law

Studies on Graph perception

Text perception

Exercises

Assignment

Review your 4 images again.

For each image:

  • identify the mapping of data to visual attributes
  • describe what you think about those choices

Post 1 pdf with 1 page per image on Moodle.