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Advanced seminar:   Visual Object Recognition Dr. Lior Wolf School of Computer Science ,  Tel Aviv University
Credit: www . scholastic . com
Administrivia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example tasks: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Street scene understanding Watch Out! Probably Hanging Out Credit: Stan Bileschi, CBCL
Face detection Credit: Intel Technology Journal, Volume 09, Issue 01
Face identification Credit: www . security - lab . com
Image categorization Images courtesy of Mobileye
Pose estimation Credit: Thomas Izo, CSAIL
Motion recognition Ballet turn: Input video: Output: The “Birmingham Royal Ballet” Credit: Eli Shechtman and Michal Irani
Basic image processing: ,[object Object],[object Object],[object Object]
An image is an array of pixels Credit: H. Joel Trussell, Eli Saber, and Michael Vrhel
Pixels can be manipulated I I>100 Conv2(I,[-1 1]) For more on image convolution, please google:  “ image convolution gamedev”
Template matching Credit: F. Patin, gamedev.net
Fourier  Transform Credit: R. Fisher, S. Perkins, A. Walker and E. Wolfart.
Major scheme: ,[object Object],[object Object],Credit: B. Heisele, Y. Ivanov, T. Poggio
Image features ,[object Object],[object Object],Credit: David Lowe
Image features ,[object Object],[object Object],Credit: David Lowe
Classification Credit: B. Heisele, Y. Ivanov, T. Poggio
Challenges: Too many to list..
Challenges 1: view point variation Michelangelo 1475-1564 slide by Fei Fei,  Fergus & Torralba
Challenges 2: illumination slide credit: S. Ullman
Challenges 3: occlusion Magritte, 1957  slide by Fei Fei, Fergus & Torralba
Challenges 4: scale slide by Fei Fei, Fergus & Torralba
Challenges 5: deformation Xu, Beihong 1943 slide by Fei Fei, Fergus & Torralba
Challenges 6: background clutter Klimt, 1913 slide by Fei Fei, Fergus & Torralba
Challenges 7: object intra-class variation slide by Fei-Fei, Fergus & Torralba
Challenges 8:  local ambiguity slide by Fei-Fei, Fergus & Torralba
Challenges 9:  the world behind the image  Credit: A. Efros

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Object recognition seminar S2006E01