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May 24, Tuesday
12:00 – 13:00

This talk describes a body of work aiming for a paradigm shift in automatic multiview reconstruction and calibration. The new paradigm correlates the differential geometry of image curves and surfaces in contrast to using isolated image features such as SIFT/HOG. The current multiview geometry techniques have been developed based on the ideas from Projective Geometry and generally use isolated feature points in conjunction with RANSAC and Bundler, and result in unorganized cloud of point reconstructions. Our approach is complementary and uses the differential geometry attributes of curves and surfaces as the basic signature to correlate across views for both calibration and reconstruction. We discuss two specific efforts. First, we show that curve fragments can be correlated in multiple views and reconstructed to form a 3D Curve Sketch, an initial scaffold onto which surface patches will be reconstructed. Second, we show that the differential geometry attribute of curves can be used in registration of 3D models to 2D images. The results of other projects underway are also highlighted.