Colloquium Computing Science



Date:                            Monday, April 14 2008 

Speaker:                      Arnold W.M. Smeulders
                                    Intelligente Systemen Lab Amsterdam

Room and time:           5161.0267 (Bernoulliborg), 16.00




Title:  The notion of an object in computer vision





It is safe to assume that objects exist in the real world. When the
light enters the eye, it is, however, not at all clear what part of the
light represents the object. We argue that the most sensible
representations of objects is a mix of features ranging from a basic
representation by {R,G,B} features, to sets of (colour) invariants, to
regional features, to textural features to contextual features. The
first sets of features are ruled by the laws of reflection, whereas we
will show that the latter types of features are ruled by image
statistics. Applying sets of these features to very large archives of
video material as used in the TRECvideo competitions we will show (to
what degree) these features are capable of describing the visual world
or objects in them.








Colloquiumcoördinator is Prof.dr. M. Aiello, Dr. M. Biehl (e-mail: