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Camouflaging an Object from Many Viewpoints Andrew Owens 1 , Connelly Barnes 2 , Alex Flint 3 , Hanumant Singh 4 , and William Freeman 1 1 MIT CSAIL, 2 University of Virginia / Adobe, 3 Flyby Media, 4 Woods Hole Oceanographic Inst Presenter: @miyabiarts 関関 CV 関関関 CVPR 関関関関 （ 26, July 2014 ）

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関東CV勉強会

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  • Camouflaging an Object from Many Viewpoints Andrew Owens1, Connelly Barnes2, Alex Flint3, Hanumant Singh4, and William Freeman1 1MIT CSAIL, 2University of Virginia / Adobe, 3Flyby Media, 4Woods Hole Oceanographic Inst Presenter: @miyabiarts CV CVPR 26, July 2014
  • Camouflage Disruptive ColorationMasquerade Optical CamouflageBackground matching
  • Motivation
  • Goal 3D
  • Application: Public Art http://joshuacallaghan.com/Tianmu.htm
  • Significance of camouflage research
  • CV Dazzle http://cvdazzle.com/
  • Goal 3D
  • Contribution 3D 37
  • Algorithm Background matching Two Stage Algorithm Stage1: Capture images of object Stage2: Camouflage object
  • Stage 1: Capture Images of Object 10-25
  • Stage 1: Capture Images of Object SfM3D Target:
  • Stage2: Camouflage Object
  • Methods Nave model mean color Projection from viewpoint Random/Greedy MRF (Proposed) Interior/Boundary MRF
  • Nave model: mean color Viewpoint 1 Viewpoint 2
  • Nave model: mean color Viewpoint 1 Viewpoint 2
  • Projection from viewpoint Viewpoint 1 Viewpoint 2
  • Random/Greedy Random Greedy
  • Random Viewpoint 1 Viewpoint 2
  • Random Viewpoint 1 Viewpoint 2
  • Random/Greedy Random Greedy 70
  • Greedy Viewpoint 1 Viewpoint 2
  • Greedy Viewpoint 1 Viewpoint 2
  • MRF (Proposed)
  • MRF Formulation Data Smoothing
  • MRF (Proposed) Interior MRF Boundary MRF
  • Data cost term Data Occlusion Viewpoint Stability
  • Data cost term Occlusion Viewpoint Stability
  • Interior MRF Smoothing cost term
  • Interior MRF Viewpoint 1 Viewpoint 2
  • Boundary MRF Projection
  • Boundary MRF Viewpoint 1 Viewpoint 2
  • Psychophysical study design Amazon Mechanical Turk Work http://camo-exp.appspot.com/game
  • Evaluation metrics Confusion rate [s] Time to find [s]
  • Experiment 37
  • Results
  • Results MRF
  • Greedy vs Boundary MRF
  • Interior MRF vs Boundary MRF
  • Results from multi viewpoints Boundary MRF https://www.youtube.com/watch?v=NNlE_hzqdss
  • Conclusion 3D MRF

Viewpoints & GPS locations (Degrees, Decimal Minutes)
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