Τετάρτη 7 Ιουνίου Ώρα 12
Αίθουσα Τηλεκπαίδευσης Κέντρου Λειτουργίας και Διαχείρισης Δικτύου ( NOC) Τμήμα Πληροφορικής κ Τηλεπικοινωνιών ΕΚΠΑ
Visual localization and registration without matching
Kostas Daniilidis - University of Pennsylvania
SUMMARY
Location-based services is an upcoming market providing locationspecific
information to the user. While GPS and cellular networks helpin rough
localization outdoors, they cannot provide directionalinformation and exact position. Cameras do not require any externalsignals and work almost everywhere. However, the data dimensionalityof images makes the data association (matching) along multiple frameshard. We show in this talk thaτ we can solve the visual localizationproblem without matching with a voting scheme.
Voting of the parameter space (known as Hough transform) can beaccelerated if we realize that the transform integral is a convolutionintegral, not necessarily on the image plane. Using tools fromharmonic analysis on groups, we give a new light to Fourier methodsand propose algorithms that are robust and suitable when the majorityof features are outliers. We solve the structure from motion problemin two views without correspondences and we present a new and fullyautomatic method for registering to each other range scans withlimited overlap.
Short Bio:
Kostas Daniilidis is Associate Professor of Computer and Information Science at the University of Pennsylvania where he was AssistantProfessor from 1998 to 2003. He is a member of the interdisciplinaryGRASP laboratory. He obtained his MSE (Diploma) in ElectricalEngineering from the National Technical University of Athens, 1986,and his PhD (Dr.rer.nat.) in Computer Science from the University ofKarlsruhe, 1992, under the supervision of Hans-Hellmut Nagel. Hisresearch interests are in space and motion perception with machines,with applications on navigation, omnidirectional vision and immersiveenvironments. He is Associate Editor of IEEE Transactions on PatternAnalysis and Machine Intelligence.
In June 2006, he co-chairs with Pollefeys the Third Symposium on 3DData Processing, Visualization, and Transmission and he will beProgram Chair of the European Conference in Computer Vision in 2010.He was the chair of the 2000 IEEE Workshop on Omnidirectional Visionand Area Chair of the ECCV 2004, CVPR 2004, 2005, and 2006 conferences
[παλιό] 07-06-2006 - Visual localization
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[παλιό] 07-06-2006 - Visual localization
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