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An Introduction to Computer Vision Matthew Dockrey  June 18, 2009
Introduction ,[object Object],[object Object],[object Object]
PASCAL VOC Data Table by Mark Everingham
PASCAL VOC Results Table by Mark Everingham
SRVC
SRVC Results Table by Paul E. Rybski Alexei Efros
What is computer vision? ,[object Object],[object Object],[object Object]
Scale-invariant feature transform (SIFT) ,[object Object],[object Object],[object Object],[object Object]
SIFT – Point Detection Images by David Lowe
SIFT – Point Descriptor ,[object Object]
SIFT Feature ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SIFT Image Matching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Goal: Object Classifier ,[object Object],[object Object]
...do we really need context?
No. ,[object Object]
[object Object]
Bag of Words ,[object Object],[object Object],[object Object],[object Object],[object Object]
Support Vector Machine (SVM) ,[object Object],[object Object],[object Object]
Training Data ,[object Object],[object Object],[object Object],[object Object],[object Object]
Bag of Words Classifier ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Classifier Results ,[object Object],[object Object],[object Object]
Any questions?
Other Machine Learning Systems ,[object Object],[object Object]
Other Machine Learning Systems ,[object Object],[object Object]
Viola Jones Face Detector ,[object Object]
Summed Area Table /  Integral Image ,[object Object]

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An Introduction to Computer Vision