The Experiment
At Bang&Olufsen, Denmark
• Benchmark:
-Three televisions
• Research question:
– Evaluate the differences between the TV’s (for
different attributes)
• Attributes selected by subjects (group discussion)
• Descriptive Analysis experiment
Design of Experiment
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Three TV’s
15 attributes
Four pictures
Eight assessors (subjects)
Two replicates
Room Light level:
approximately 5 lx.
• Three hours per subject plus 15 minutes
training experiment
Setup
• Three 32” LCD-TV’s:
• Factory settings
• Behind black baffles:
– Same visible area for
all TV’s.
– Shortest measures of
the 16:9 and 15:9
screens, respectively.
TV 1
TV 2
TV 3
6xH
Subject
Door
Media Room
Setup (2)
• Pictures:
– Susie
– Sailboat
– Frozen Sea,
Noise
– Anita
The Attributes
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Colour saturation
Colour balance
Noise
Depth
Sharpness
Light level
Contrast
Sharpness of
movement
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Flickering (stationary)
Flickering(movement)
Distortion
Dim glass effect
Cutting
Flossy edges
Elastic effect
GuineaPig 3 User Interface
0.0
1.5
13.5
15.0