February 2002

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Structure from Motion:

a Novel Approach Using Custom Built Invariants

Wednesday, February 6, 2002
Seminar at 4pm-5pm, B&H (Engineering) bldg., Room 190
Organized by
the SHAPE Lab.

Dr. Pierre-Louis Bazin & Dr. Mireille Boutin

SHAPE Lab, Brown University

< bazin@lems.brown.edu > , < mimi@lems.brown.edu >

www.lems.brown.edu/~bazin/, www.lems.brown.edu/~mimi/

Abstract

We rephrase the problem of 3D reconstruction from images in terms of intersections of projections of orbits of custom built Lie groups actions. We then use an algorithmic method based on moving frames à la Fels-Olver to obtain a fundamental set of invariants of these groups actions. The invariants are used to define a set of equations to be solved by the points of 3D objects, providing a new technique for recovering 3D structure from motion.

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Last Updated: Jan. 25, 2002