exploiting user generated content for mountain peak detection
DESCRIPTION
CUbRIK research used for the classification of mountain panoramas from user-generated photographs followed by identification and extraction of mountain peaks from those panoramas.TRANSCRIPT
1/05/2013
SoHuman 2013 atACM Web Science 2013 1
Exploiting User Generated Content for Mountain Peak Detection
Roman Fedrov, Davide Martinenghi, Marco Tagliasacchi,
Andrea Castelletti
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Passive Human Computation
User Effort
SoHuman 2013 atACM Web Science 20131/05/2013
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Passive Human Computation
Collective Intelligence
SoHuman 2013 atACM Web Science 20131/05/2013
Our GoalRetrieve the collections of the mountain appearances in different time instants and build environmental models.
201320122011201020092008
Key ProblemIdentify the mountains
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Key Problem: Object Identification
Input
SoHuman 2013 atACM Web Science 20131/05/2013
46° 0’ 48.51” N7° 48’ 6.62” E
http://www.udeuschle.de/Panoramen.html
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Key Problem: Object Identification
Output
SoHuman 2013 atACM Web Science 20131/05/2013
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Matching Algorithm
SoHuman 2013 atACM Web Science 20131/05/2013
StepsScaleRenderExtract EdgesFilterMatch
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Matching Algorithm
SoHuman 2013 atACM Web Science 20131/05/2013
StepsScaleRenderExtract EdgesFilterMatch
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Matching Algorithm
SoHuman 2013 atACM Web Science 20131/05/2013
StepsScaleRenderExtract EdgesFilterMatch
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Matching Algorithm
SoHuman 2013 atACM Web Science 20131/05/2013
StepsScaleRenderExtract EdgesFilterMatch
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Matching Algorithm
SoHuman 2013 atACM Web Science 20131/05/2013
StepsScaleRenderExtract EdgesFilterMatch
Adapted from matching technique by Baboud et al. “Automatic photo-to-terrain alignment for the annotation of mountain pictures”, CVPR 2011
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Results
SoHuman 2013 atACM Web Science 20131/05/2013
62% of correct match as maximum result
81% of correct match in top-10 positions
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Potential Applications
SoHuman 2013 atACM Web Science 20131/05/2013
http://www.nohrsc.noaa.gov/
Augmented Reality
Environmental Models
Colle dei BreuilFurgggrat