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Coast Highway Mountain Street
Forest Inside city Open country Tall buildings
Bathroom Bedroom Dining room Gym
Kitchen Living room Movie theater Stair case
Aeroplane Car-rear Face
Ketch Motorbike Watch
OSR
ISR
CAL
2
Human Recognition of Jumbled Images
OSR ISR CAL0
10
20
30
40
50
60
70
80
90
100
Intact
JumbledAccu
racy
6
How do we recognize them?
Majority Vote of Local Independent
Decisions?
MRF Inference?
…
Are existing machine implementations of this model good enough?
7
Machine Experiments
• Assign blocks to codewords
• Accumulate p(scene|codewords)
• Pick class with highest votes
Majority Vote ResultsPr
opor
tion
of m
atch
ed re
spon
ses
OSR ISR CAL0
10
20
30
40
50
60
70
80
90
100
Random
Human Most Confident Block
Human Majority-Vote
Machine Majority-Vote
Inter-Human Agreement
11