View Synthesis using Convex and Visual Hulls | Zendy

Yonatan Wexler | Zendy; Rama Chellappa | Zendy

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View Synthesis using Convex and Visual Hulls

Author(s) -

Yonatan Wexler,

Rama Chellappa

Publication year - 2001

Publication title -

citeseer x (the pennsylvania state university)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.5244/c.15.17

Subject(s) - convex hull , visual hull , computer science , rendering (computer graphics) , regular polygon , computation , computer vision , hull , artificial intelligence , overhead (engineering) , computer graphics (images) , algorithm , mathematics , iterative reconstruction , programming language , geometry , engineering , marine engineering

This paper discusses two efficient methods for image based rendering. Both algorithms approximate the world object. One uses the convex hull and the other uses the visual hull. We show that the overhead of using the latter is not always justified and in some cases, might even hurt. We demonstrate the method on real images from a studio-like setting in which many cameras are used, after a simple calibration procedure. The novelties of this paper include showing that projective calibration suffices for this computation and providing simpler formulation that is base only on image measurements.

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