Transcript Face Navigation

1,001,001 Faces
user testing plan for
face navigation interface
Tzu-Pei Grace Chen
Sidney Fels
Human Communication Technologies Lab
What is this project about?
• Buddhist Deities of
Sanjusangen-do
Temple raises two
interesting questions:
– Finite set of faces for
majority to identify with
– Effective interface for
face navigation
Face Searching Background
• Component vs. Configural navigation
• Component and configural approach
complement each other.
Face Wheel Design
• Considered color palette, road map, and
genetic tree metaphors in our design.
Face Wheel Design
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Our interface is configural navigation
Navigation from average face to distinct
No verbal description of faces.
Key feature
User Testing Design
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2 experiments
Within subject test
Factorial design
Task: face matching
Plan to use subjects
with no face recognition
impairment.
• Play time after the talk.
Experiment 1
• hypothesis
– Is it easier to navigate on texture & shape
correlated axes?
axes
T-S correlated
wheel
interface
fixed slider
T-S uncorrelated
Experiment 2
• Hypotheses
– 1. Does the wheel interface work better than
the slider interfaces?
– 2. Does the increase of the face space
resolution increase the level of difficulty?
dimension 6
3
fine
interface
wheel
fixed slider
dynamic slider
coarse
Resolution
Questionnaire
• Experiment 1
– What’s your ethnic background?
• Experiment 2
– Which interface do you prefer and why?
– Is your preferred interface the one you are
most familiar with?
– Are there situations you would give different
preferences to each interface?
Analysis of Data
• Factorial design calls for ANOVA
• For dependent variable, “face closeness”, each face
matching result is given score for ANOVA process
• Dependent variable, time, will be analysed
separately.
Confounding variables
• Everyone has
different experience
with faces and hence
different face space in
their head.
• Other race effect
• Subjects improve
from familiarity with
faces.
The End
Thoughts and Suggestions?
Face trivia
• Graeme’s theorem: we’re attracted to faces
like ourselves and the opposite.
• Face transplant will no longer be science
fiction.