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Summary: An AppearanceBased Framework for 3D Hand Shape Classification and
Camera Viewpoint Estimation
Vassilis Athitsos and Stan Sclaroff
Computer Science Department
Boston University
111 Cummington Street
Boston, MA 02215
email: fathitsos, sclaroffg@cs.bu.edu
Abstract
An appearancebased framework for 3D hand shape
classification and simultaneous camera viewpoint estima
tion is presented. Given an input image of a segmented
hand, the most similar matches from a large database of
synthetic hand images are retrieved. The ground truth la
bels of those matches, containing hand shape and camera
viewpoint information, are returned by the system as esti
mates for the input image. Database retrieval is done hi
erarchically, by first quickly rejecting the vast majority of
all database views, and then ranking the remaining can
didates in order of similarity to the input. Four different
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